Engineering Materials
The temperature required for full annealing in hypereutectoid steel is

30° C to 50° C below upper critical temperature
30° C to 50° C below lower critical temperature
30° C to 50° C above upper critical temperature
30° C to 50° C above lower critical temperature

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Engineering Materials
Specify the sequence correctly

Grain growth, stress relief, recrystallization
Stress relief, grain growth, recrystallization
Grain growth, recrystallization, stress relief
Stress relief, recrystallization, grain growth

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Engineering Materials
Y-alloy contains

3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium
4 to 4.5% magnesium, 3 to 4% copper and rest aluminium
5 to 6% tin, 2 to 3% copper and rest aluminium
3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium

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