One of the following metal alloy is suitable for the precipitation hardenable alloy?
A) al-zn
B) al-ni
C) al-cr
D) al-cu
Correct Answer:
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Q10: In carburisng process which of the following
Q11: Out of the following process,one is not
Q12: heat treatment is never required after carburisig
Q13: In nitriding process which of the following
Q14: one of the following is a step
Q16: in case of flame hardening ,the heat
Q17: in flame hardening process,the metal surface after
Q18: In case of carbonitriding,by diffusion of which
Q19: Dislocation are stopped by a ……
A)nuceation
B)grain growth
C)grain
Q20: Finer grain size,higher will be the …
A)hardness
B)ductility
C)yield
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