State some precautions to be taken in case of powder metallurgy?

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When austenitized, carbon steel is quenched, why is the bcc crystal elongated into a body-centered tetragonal crystal structure?

0 Answers  

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Why same casting has different hardness and machineability properties? One spot it is found hard for machining and another spot soft? It is FG 260 grade for Cast Iron.

4 Answers  

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What is the difference between diagrams of it and ct in heat treatment of steels?

0 Answers  

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

2 Answers  

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Explain a silver and deming drill brit?

0 Answers  

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acetylene is stored in ?

0 Answers   NIC,

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carbon-3.23%,manganese-0.60%,silicon-2.25%,sulphur-0.086%, phosphorus-0.122%,chromium-0.04%,nickel-0.10%,molybdenum- trace.

3 Answers  

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What happens when the mercury of a thermometer spills over the gold ring?

0 Answers  

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Discuss steam engines. What is its overall efficiency ?

0 Answers   Essar,

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what are different grades of mild steel available for making machine structure (housing)

0 Answers  

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Why are the superalloys sometimes subjected to secondary melting processes?

1 Answers  

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