Explain super alloys. What makes them useful for land-based turbines?
What is the metallurgical explanation of effects of chromium, nickel, molybdenum, and carbon in stainless steels?
Explain any method through which molds can shine after casting?
Why steel is preferred for construction of aircraft?
What are carbides?
What is Redlich Kwong equation?
What is select miller cutter?
A plain carbon steel contains 45 wt% of proeutectoid ferrite. Define what is its average carbon content in weight percent? I know that you need to use a tie line in the phase diagram, but my book does not really give a good example to go by
How is solution annealing carried out? What type of furnace is required? Does one need to be heat in a salt bath?
What is a boring tool ?
what are different grades of mild steel available for making machine structure (housing)
What are allotropes? What are the allotropes of iron and carbon?
In welding, arc is too long due to ?
What is iron ferrite?
I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C.
