Question

1a. Explain the process of plastic deformation of metals by twinning

b. List the forms in which iron ores can exist with two examples each and their chemical composition

c. State two principal ores with their chemical composition for these non ferrous metals:

1. Magnesium. 2. Copper

d. List and describe two types of surface defect with appropriate diagram.

e. Describe interstitial diffusion mechanism

Answer 1

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