Preguntas sobre aceros y microestructuras
Quiz
•
Science
•
University
•
Hard

V. CRR
Used 10+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Los aceros son aleaciones de:
Ferrita y carbono
Hierro y carburo de hierro (Fe₃C)
Hierro y carbono
Hierro y ferrita
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un acero con un contenido de carbono del 0.40% se clasifica como:
Acero hipoeutectoide.
Acero eutectoide.
Acero hipereutectoide.
Acero inoxidable.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la fase que presenta una estructura cristalina cúbica centrada en el cuerpo (BCC) en el diagrama Fe-Fe₃C?
Cementita.
Ferrita.
Austenita.
Perlita.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué es la cementita (Fe₃C) en el sistema Fe-Fe₃C?
Es una solución sólida intersticial de carbono en hierro.
Es un compuesto intermedio con un 6.7% C.
Es una fase líquida que aparece a temperaturas muy altas.
Es una solución sólida sustitucional con estructura cúbica centrada en las caras (FCC).
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la máxima solubilidad del carbono en la ferrita (α)?
0.022% C a 727°C.
2.11% C a 1147°C.
6.7% C a 1147°C.
0.77% C a 727°C.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes es una transformación invariante en el sistema Fe-Fe₃C?
La transformación eutéctica a 727°C.
La transformación peritéctica a 1147°C.
La transformación eutectoide a 727°C.
La transformación monotéctica a 1147°C.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la reacción eutectoide del sistema Fe-Fe₃C, la austenita (γ) se transforma en:
Ferrita (α) y cementita.
Ferrita (α) y perlita.
Cementita y martensita.
Martensita y ferrita (α).
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