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73 \pard\plain\ltrpar\ql\s33\itap0\tqc\tx4252\tqc\tx8504}
74 \sectd\sbknone\colsx360\headery708\footery680\margtsxn1544\margbsxn26\marglsxn1620\margrsxn900\pgnrestart\pgnx1\ltrsect
75 \pard\plain\ltrpar\ql\s30\itap0{\s30\f0\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch MATERIALES INDUSTRIALES I Docente: Ing Javier Estevez }{\s30\f0\fs24\lang1034{\*\listtag0}\par}
76 \pard\plain\ltrpar\ql\fi360\li-360\s30\itap0{\s30\f0\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Problemas Curso 2006 }{\s30\f0\fs24\lang1034{\*\listtag0}\par}
77 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
78 \pard\plain\ltrpar\ql\fi540\li-540\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 1.-Ejemplo de materiales met\'e1licos de uso en el hogar.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
79 \pard\plain\ltrpar\ql\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 2.-\'cddem para materiales cer\'e1micos.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
80 \pard\plain\ltrpar\ql\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 3.-\'cddem para materiales polim\'e9ricos (caucho y pl\'e1stico).}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
81 \pard\plain\ltrpar\ql\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 4.-Describir brevemente los siguientes procesos de conformaci\'f3n de metales.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
82 {\listtext\pard\fi-435\li795 a) }\pard\plain{\ltrpar\ql\fi-435\li795\s30{\*\abilist\abilistid1000\abilistparentid0\abilistlevel1\abistartat1{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L)}{\abiliststyle Lower Case List}}{\*\pn\pnql\pnstart1\pnlvlbody\pnlcltr{\pntxtb }{\pntxta )}}\fn-435\li795\ls1\ilvl0\itap0\tx795{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Fundici\'f3n}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
83 }{\listtext\pard\fi-435\li795 b) }\pard\plain{\ltrpar\ql\fi-435\li795\s30{\*\abilist\abilistid1000\abilistparentid0\abilistlevel1\abistartat1{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L)}{\abiliststyle Lower Case List}}{\*\pn\pnql\pnstart1\pnlvlbody\pnlcltr{\pntxtb }{\pntxta )}}\fn-435\li795\ls1\ilvl0\itap0\tx795{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Laminaci\'f3n}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
84 }{\listtext\pard\fi-435\li795 c) }\pard\plain{\ltrpar\ql\fi-435\li795\s30{\*\abilist\abilistid1000\abilistparentid0\abilistlevel1\abistartat1{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L)}{\abiliststyle Lower Case List}}{\*\pn\pnql\pnstart1\pnlvlbody\pnlcltr{\pntxtb }{\pntxta )}}\fn-435\li795\ls1\ilvl0\itap0\tx795{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Trefilaci\'f3n y estirado}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
85 }{\listtext\pard\fi-435\li795 d) }\pard\plain{\ltrpar\ql\fi-435\li795\s30{\*\abilist\abilistid1000\abilistparentid0\abilistlevel1\abistartat1{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L)}{\abiliststyle Lower Case List}}{\*\pn\pnql\pnstart1\pnlvlbody\pnlcltr{\pntxtb }{\pntxta )}}\fn-435\li795\ls1\ilvl0\itap0\tx795{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Estampado y embutido}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
86 }{\listtext\pard\fi-435\li795 e) }\pard\plain{\ltrpar\ql\fi-435\li795\s30{\*\abilist\abilistid1000\abilistparentid0\abilistlevel1\abistartat1{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L)}{\abiliststyle Lower Case List}}{\*\pn\pnql\pnstart1\pnlvlbody\pnlcltr{\pntxtb }{\pntxta )}}\fn-435\li795\ls1\ilvl0\itap0\tx795{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Por arranque de viruta}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
87 }{\listtext\pard\fi-435\li795 f) }\pard\plain{\ltrpar\ql\fi-435\li795\s30{\*\abilist\abilistid1000\abilistparentid0\abilistlevel1\abistartat1{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L)}{\abiliststyle Lower Case List}}{\*\pn\pnql\pnstart1\pnlvlbody\pnlcltr{\pntxtb }{\pntxta )}}\fn-435\li795\ls1\ilvl0\itap0\tx795{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Soldadura}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
88 }{\listtext\pard\fi-435\li795 g) }\pard\plain{\ltrpar\ql\fi-435\li795\s30{\*\abilist\abilistid1000\abilistparentid0\abilistlevel1\abistartat1{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L)}{\abiliststyle Lower Case List}}{\*\pn\pnql\pnstart1\pnlvlbody\pnlcltr{\pntxtb }{\pntxta )}}\fn-435\li795\ls1\ilvl0\itap0\tx795{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Forjado}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
89 }\pard\plain\ltrpar\ql\fi360\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
90 \pard\plain\ltrpar\ql\li360\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
91 \pard\plain\ltrpar\ql\li360\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
92 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 5.-Para los procesos anteriores de ejemplos de art\'edculos y/\'f3 productos de uso domiciliario \'f3 com\'fan.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
93 \pard\plain\ltrpar\ql\ri-260\s30\itap0\tx1080\tx1260{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 6.-Calcular la fuerza de atracci\'f3n entre un ion Ca2+ y un ion O2- cuyos centros est\'e1n separados 1nm.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
94 \pard\plain\ltrpar\ql\ri-260\s30\itap0\tx1080\tx1260{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch La f de atracci\'f3n es Fa}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
95 \pard\plain\ltrpar\ql\ri-260\s30\itap0\tx1080\tx1260{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Fa*=dEa/dr =d(-A/r)/dr =A/r\'b2}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
96 \pard\plain\ltrpar\ql\ri-260\s30\itap0\tx1080\tx1260{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch La constante A de las fuerzas de Coulomb vale}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
97 \pard\plain\ltrpar\ql\ri-260\s30\itap0\tx1080\tx1260{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch A= 1/4 *\'b6*E*(Z1*Z2)}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
98 \pard\plain\ltrpar\ql\ri-260\s30\itap0\tx1080\tx1260{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch }{\s30\f1\fs24\lang1034{\*\listtag0}\par}
99 \pard\plain\ltrpar\ql\ri-260\s30\itap0\tx1080\tx1260{\s30\f2\fs24\lang1034{\*\listtag0}\par}
100 \pard\plain\ltrpar\ql\ri-260\s30\itap0\tx1080\tx1260{\s30\f2\fs24\lang1034{\*\listtag0}\par}
101 \pard\plain\ltrpar\ql\ri-260\s30\itap0\tx1080\tx1260{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch }{\s30\f1\fs24\lang1034{\*\listtag0}\par}
102 \pard\plain\ltrpar\ql\fi-1260\li1260\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch }{\s30\f1\fs24\lang1034{\*\listtag0}\par}
103 \pard\plain\ltrpar\ql\fi-1260\li1260\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch }{\s30\f1\fs24\lang1034{\*\listtag0}\par}
104 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
105 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
106 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 7.-Citar sint\'e9ticamente las diferencias entre enlaces i\'f3nicos,}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
107 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Met\'e1lico y covalentes.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
108 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch }{\s30\f1\fs24\b\lang1034{\*\listtag0}I\'f3nico}{\s30\f1\fs24\lang1034{\*\listtag0} hay fuerzas de atracci\'f3n electroest\'e1ticas entre iones}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
109 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Con cargas opuestas.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
110 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Covalente: hay electrones compartidos entre dos \'e1tomos adyacentes, y cada uno asume una configuraci\'f3n estable}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
111 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Metalico:Los electrones de valencia no pertenecen a ning\'fan \'e1tomo y son libres de circular por todo el metal:formando un mar de electrones}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
112 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
113 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
114 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 8.-Porque los materiales unidos covalentemente casi siempre son menos densos que los de enlace i\'f3nico \'f3 met\'e1lico.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
115 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 9.-Cuando un metal tiene mas de 1 estructura cristalina este fen\'f3meno se denomina.Citar ejemplos.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
116 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 10.-Estados alotr\'f3picos del Fe.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
117 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 11.-Como define substancias isotr\'f3picas.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
118 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 12.-Como define a un s\'f3lido cristalino.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
119 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 13.-Representaci\'f3n esquem\'e1tica de un cristal a:FCC; b:BCC;c;HC.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
120 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 14.-Calcular el radio de un \'e1tomo de paladio,estructura FCC y densidad}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
121 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 12.0gr/cm3.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
122 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 15.-Para un aleaci\'f3n de Pa= 43g/mol densidad=6.4gr/cm3}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
123 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Y radio at. 0,122nm determinar estructura cristalina Justificar.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
124 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 16.-Clasificar en los metales s\'f3lidos los distintos tipos de imperfecciones. Dibujo esquem\'e1tico.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
125 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 17.-\'bfCuando se forma una soluci\'f3n s\'f3lida?.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
126 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 18.-\'bfPorque las gotas de los metales en estado l\'edquido adoptan la forma esf\'e9rica?.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
127 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 19.-Investigue y realice una tabla con el modulo de elasticidad y resistencia a la tracci\'f3n en MPa para los siguientes materiales:}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
128 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Acero, Al, Cu, Lat\'f3n, Bronce, Titanio.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
129 \pard\plain\ltrpar\ql\fi360\li-360\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 20.-Una barra de aluminio de 127mm de longitud con una secci\'f3n cuadrada de 16,5mm de lado es traccionado con una carga de 6.67x10)4 N;su alargamiento es de 0,43mm.Si suponemos que la deformaci\'f3n es el\'e1stica, determinar el m\'f3dulo de elasticidad del AL.}{\s30\f0\fs24\lang1034{\*\listtag0}\page }{\s30\f1\fs24\lang1034{\*\listtag0}\par}
130 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
131 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 21.-Dibuje el diagrama de tensi\'f3n-deformaci\'f3n para el acero y defina a:E,b: ;c: d:}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
132 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 22.-Consideremos una probeta de una aleaci\'f3n \uc1\u8220\'93X\uc1\u8221\'94 con un \'d8=10mm. Fuerza de tracci\'f3n 1500N produce una reducci\'f3n el\'e1stica del di\'e1metro de 6,7 X 10)-4 mm. Calcular E para este material siendo el m\'f3dulo de Poisson= 0,35.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
133 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 22.-Un penetrador Brinell de \'d8= 10mm produjo una impronta de 2,5mm de \'d8 en una pieza de acero. Carga aplicada 1000Kg. Calcular HB.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
134 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 23.-Para el problema anterior;si la dureza fuera de HB=300 y la carga de 500kg. Calcular \'d8 de la impronta.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
135 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 24.-Dibuje esquem\'e1ticamente los pentradores para realizar ensayos de dureza Brinell, Vickers, Knoop y Rockwell com\'fan y superficial.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
136 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 25.-Busque las tablas que relacionan dureza y resistencia a la tracci\'f3n para aceros.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
137 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 26.-Dibuje en un diagrama tensi\'f3n deformaci\'f3n las curvas de tracci\'f3n para un material d\'factil y para otro fr\'e1gil. Defina ductilidad.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
138 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 27.-Condiciones a cumplir para realizar un ensayo de dureza.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
139 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 28.-Podemos usar un durometro Rockwell en la escala C para ensayar una pieza de 0,3mm de espesor. Justifique la respuesta.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
140 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 29.-Ensayando una pieza de acero con el m\'e9todo Vickers usamos una carga de 50Kg. Si la diagonal media de la impronta es de 0,01mm que dureza tenemos.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
141 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 30.-Tablas de comparaci\'f3n de dureza con los diferentes m\'e9todos.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
142 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 31.-Para un material met\'e1lico muy poroso que m\'e9todo de ensayo de dureza usar\'eda.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
143 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 32.-Que se mide en los ensayos por impacto.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
144 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 33.-Diferencia entre Charpy e Izod.Dibuje curvas para aceros con diferentes % de carbono.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
145 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 34.-Es necesario seleccionar una aleaci\'f3n met\'e1lica. Se requiere para dicho material = 310 Mpa = 27% m\'ednimo. Si el metal puede ser trabajado en fri\'f3 decidir entre cobre, lat\'f3n, aceros SAE 1040.\'bfPor qu\'e9?.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
146 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 35.-Explicar las diferencias en la estructura de grano para un metal que ha sido trabajado en fri\'f3 y el mismo despu\'e9s de recristalizado.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
147 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 36.-Los resultados de un Ensayo de impacto fueron:}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
148 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Temperatura \'b0C Energ\'eda de impacto (J) }{\s30\f1\fs24\lang1034{\*\listtag0}\par}
149 {\listtext\pard\fi-3735\li4470\ri-260 50 }\pard\plain{\ltrpar\ql\fi-3735\li4470\ri-260\s30{\*\abilist\abilistid1001\abilistparentid0\abilistlevel1\abistartat50{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L}{\abiliststyle Numbered List}}{\*\pn\pnql\pnstart50\pnlvlbody\pndec{\pntxtb }{\pntxta }}\fn-3735\li4470\ls2\ilvl0\itap0\tx4470{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 76}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
150 }{\listtext\pard\fi-3750\li4485\ri-260 40 }\pard\plain{\ltrpar\ql\fi-3750\li4485\ri-260\s30{\*\abilist\abilistid1002\abilistparentid0\abilistlevel1\abistartat40{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L}{\abiliststyle Numbered List}}{\*\pn\pnql\pnstart40\pnlvlbody\pndec{\pntxtb }{\pntxta }}\fn-3750\li4485\ls3\ilvl0\itap0\tx4485{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 76}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
151 }{\listtext\pard\fi-3750\li4485\ri-260 30 }\pard\plain{\ltrpar\ql\fi-3750\li4485\ri-260\s30{\*\abilist\abilistid1003\abilistparentid0\abilistlevel1\abistartat30{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L}{\abiliststyle Numbered List}}{\*\pn\pnql\pnstart30\pnlvlbody\pndec{\pntxtb }{\pntxta }}\fn-3750\li4485\ls4\ilvl0\itap0\tx4485{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 71}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
152 }{\listtext\pard\fi-3750\li4485\ri-260 20 }\pard\plain{\ltrpar\ql\fi-3750\li4485\ri-260\s30{\*\abilist\abilistid1004\abilistparentid0\abilistlevel1\abistartat20{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L}{\abiliststyle Numbered List}}{\*\pn\pnql\pnstart20\pnlvlbody\pndec{\pntxtb }{\pntxta }}\fn-3750\li4485\ls5\ilvl0\itap0\tx4485{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 58}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
153 }{\listtext\pard\fi-3750\li4485\ri-260 10 }\pard\plain{\ltrpar\ql\fi-3750\li4485\ri-260\s30{\*\abilist\abilistid1005\abilistparentid0\abilistlevel1\abistartat10{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L}{\abiliststyle Numbered List}}{\*\pn\pnql\pnstart10\pnlvlbody\pndec{\pntxtb }{\pntxta }}\fn-3750\li4485\ls6\ilvl0\itap0\tx4485{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 38}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
154 }{\listtext\pard\fi-3600\li4485\ri-260 0 }\pard\plain{\ltrpar\ql\fi-3600\li4485\ri-260\s30{\*\abilist\abilistid1006\abilistparentid0\abilistlevel1\abistartat0{\abifieldfont Times New Roman}{\abilistdecimal .}{\abilistdelim %L}{\abiliststyle Numbered List}}{\*\pn\pnql\pnstart0\pnlvlbody\pndec{\pntxtb }{\pntxta }}\fn-3600\li4485\ls7\ilvl0\itap0\tx4485{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 23}{\s30\f2\fs24\lang1034{\*\listtag0}\par}
155 }\pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch -10 14}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
156 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch -20 9}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
157 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch -30 5}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
158 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch -40 1,5}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
159 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
160 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
161 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
162 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
163 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
164 \pard\plain\ltrpar\ql\s30\itap0{\s30\f0\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch MATERIALES INDUSTRIALES I Docente:Ing Javier Estevez }{\s30\f0\fs24\lang1034{\*\listtag0}\par}
165 \pard\plain\ltrpar\ql\fi360\li-360\s30\itap0{\s30\f0\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Problemas Curso 2006 }{\s30\f0\fs24\lang1034{\*\listtag0}\par}
166 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
167 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
168 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch a) Representar los resultados en un diagrama Energia-Temperatura}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
169 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch b) La temperatura de transici\'f3n d\'factil-Fr\'e1gil siendo td_f= t correspondiente E media.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
170 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch C) Temperatura transici\'f3n d\'factil \uc1\u8211\'96 Fr\'e1gil para E = 20J}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
171 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
172 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 37.-Dadas las curvas del ensayo de fatiga sgte:}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
173 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
174 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
175 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
176 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
177 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
178 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
179 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
180 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
181 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
182 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
183 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
184 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
185 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
186 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
187 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
188 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
189 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
190 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
191 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
192 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch a) Para una barra de acero 1045 sometida al ensayo de fatiga. Carga }{\s30\f1\fs24\lang1034{\*\listtag0}\par}
193 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch 70.000N.Calcular el valor \'d8 m\'ednimo para que no se rompa por fatiga.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
194 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch b) Para una barra de Al de \'d8 10mm seg\'fan aleaci\'f3n 2014 T6 sometida a fatiga. M\'e1ximo carga + 5700N y \uc1\u8211\'965700N, determinar la vida a fatiga.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
195 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch c) Para otra barra de Al 2014-T6 de 20mm de \'d8 se la somete a fatiga. Calcular carga m\'e1xima y m\'ednima a aplicar para que rompa a 1x10)8ciclos.}{\s30\f1\fs24\lang1034{\*\listtag0}\par}
196 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
197 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
198 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
199 \pard\plain\ltrpar\ql\ri-260\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
200 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
201 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
202 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
203 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
204 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
205 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
206 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
207 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
208 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
209 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
210 \pard\plain\ltrpar\ql\s30\itap0{\s30\f2\fs24\lang1034{\*\listtag0}\par}
211 \pard\plain\ltrpar\ql\itap0{\f2\fs24\lang11274{\*\listtag0}\par}
212 \pard\plain\ltrpar\ql\itap0\par}