What is iron ferrite?

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What is the atomic density of ceramics?

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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.

0 Answers   Novellus,

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What special precautions need to be employed if a powder metallurgy route is chosen?

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carbon-3.23%,manganese-0.60%,silicon-2.25%,sulphur-0.086% phosphorus-0.122%,chromium-0.04%,nickle-0.10% molybdenum-trace. what is the grade of the above composition cast iron

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What is hot working of metals? Give some of its principal methods.

0 Answers   Essar,

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How does and why the recrystallization temperature of the metals affects on alloying?

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A plain carbon steel contains 45 wt% of proeutectoid ferrite. What is its average carbon content in weight percent? I know that you need to use a tie line in the phasediagram, but my book does not really give a good example to go by?

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Explain dislocation theory?

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What Is cold working of metals? Give some of its principal methods.

0 Answers   Essar,

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What does allotropic mean what does iron and steel have to do with it?

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What kind of components are fabricated from the superalloys, and what are their roles?

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