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More Metallurgical Engineering Questions
Match the associated primary change in Group 2 with the corresponding phenomenon in Group 1 . Group 1 Group 2 P. Recovery 1. change in dislocation density Q. Recrystallisation 2. change in the shape of a phase R. Malleabilising 3. change in vacancy concentration S. Texture 4. change in grain orientation
An alloy of overall composition, X B = 0.7 was equilibrated at temperature T 1 . Microstructural analysis showed two phases, (α and β, and that the phase fraction of β was 0.75. Given that the equilibrium composition of β at Ti is 0.9 as shown in the phase diagram below, the maximum solubility of B in α (in mole fraction) at this temperature is . . . . . . . .
Match the extraction methods in Group 1 with the metals in Group 2 . Group 1 Group 2 P. Roasting followed by carbothermic reduction 1. Ti Q. Electrolysis of fused salt 2. Pb R. Roasting followed by controlled oxidation 3. Al S. Halide process 4. Cu 5. Au
Cold shortness happens in the steel due to presence of
The maximum axial compression stress during cold upsetting of a cylindrical rod of radius, 'r', occurs at