Answer / kmari

weathering for long time, annealing, vibration for long
period with small magnitude.

Does case harden steel properties detoriates over time? Especially for guns, parts like bolt carrier, the brand new parts has been kept for 10 year and properly oiled. I am worried about its surface hardness to take the blow during firing.

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Explain metallurgical microscopes?

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What is the chemical composition of ceramic and what is its atomic density?

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What is the Equivalent for 9.81 kgf= ?

0 Answers   NIC,

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What is the major difference between quenching and annealing?

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Define what other events in history might have affected the growth of metallurgy?

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What is a master gauge ?

0 Answers   Essar,

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

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Upto what negative temperature below zero degree we can use IS 2062 Structural material?

2 Answers  

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Discuss the basic functionioning of air conditioner.

0 Answers   Essar,

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What is stress corrosion cracking..

6 Answers  

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Define what is the grain size of lead as an element and as an alloy such as lead tin alloy?

0 Answers  

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