Answer Posted / madiha

In order to get homogenized composition. Secondary melting process is usually vacuum arc remelting which involves the melting of electrode drop by drop and solidification occure layer by layer as a result homogeneous composition is obtained.

Define what is special about the properties of chromium molybdenum steels that make them ideal for pressure vessels?

1153

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Discuss steam engines. What is its overall efficiency ?

1040

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what is difference between IS 1018 and IS 2062 E 250A

5989

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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.

2439

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What happens to the microstructure during service exposure?

2364

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Are all metals heavy? Explain.

1003

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What is round-robin scheduling in OS?

1139

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In grey iron sulpher was above 0.15% what react on metal?

1097

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What is iron ferrite and where is it found?

1034

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is nickel considered a non-sparking metal?

1157

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Explain dislocation theory?

1060

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Define what is the metallurgy use? Define what is the casting and forging?

957

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How do you classify shapers?

1131

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What is Redlich Kwong equation?

1075

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On which basis annealing cycle of steel bars of UpTo 6 MTR can be decided.we r charging 40-45 metric ton load for annealing in bogie furnace?

1486

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