Answer / lavkush pandey

white network structure that precipitates at the grain boundary when hypoeutectoid steel is heated to above A c3 and quenched,

Explain dislocation theory?

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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 type of grinding is used for harder materials?

0 Answers   NIC,

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Define what is proeutectoid ferrite and cementite?

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How is solution annealing carried out? Define what type of furnace is required? Does one need to be heat in a salt bath?

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Explain a silver and deming drill brit?

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What is a boring tool ?

0 Answers   Essar,

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The processes used to fabricate the superalloys seem fairly mature. Is much process development going on?

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how can make pallet

4 Answers   Qatar Steel,

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Differentiate between stainless steel and alloy steel?

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Why are the superalloys sometimes subjected to secondary melting processes?

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Does the extrusion process for a355 and a356 alloy have any impact on the impact energy?

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