white rust formation over zinc plated and passivated
fasteners during CED coating. WHY?
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Define what is the different between ferrite percentage and ferrite number?
What is carbon steel ?
What is thermodynamic state of metal?
Which type of furnace is required in solution annealing?
Explain the uses of iron ferrite?
Why is non-destructive testing necessary?
what is wedge load test method . what is offset method .
How is solution annealing carried out? What type of furnace is required? Does one need to be heat in a salt bath?
When austenitized, carbon steel is quenched, why is the bcc crystal elongated into a body-centered tetragonal crystal structure?
Water hammer in pipes occur due to ?
When we do cardonitriding or casehardening operation for a plain carbon steel the case depth, hardness & microstructure are not alike why and what are the basicthing, which makes such a difference.
What Is cold working of metals? Give some of its principal methods.
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