Answer / kmari

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

What is the melting point of brass?

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How much gold concentration should be in the organic phase (dbc) before reduction by oxalic acid solution? Is it effective on purity of gold in reduction step? Define what is the ratio of dbc to oxalic acid solution in this step?

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carnot cycle has maximum efficiency for ?

0 Answers   NIC,

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What is lathe bed made of ?

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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Is it possible to use metallurgical inverted microscope to other designation?

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What are allotropes?

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How to melt the solidified copper accretions in copper scrap melting furnace?

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Is it possible to determine the heat treatment condition in stainless steel (astm a 479 gr xm-19) by checking the microstructure?

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

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What is the major difference between quenching and annealing?

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Define what is the difference between plaster used in gold investment casting and ceramic used in the process of investment casting of automobile engine parts and turbine blades etc. When both are used in the lost-wax method?

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