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What kind of annealing does this graph illustrate?

What kind of annealing does this graph illustrate? Correct Answer Spheroidise annealing

Stress relief annealing is carried out to remove the stresses caused by castings, quenching, machining, welding etc. This can be done by prolonged heating of the material slightly above and below the A1 line. Full annealing occurs above the A1 and A3 lines, whereas process annealing occurs slightly below the A1 line.

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Which is false statement about annealing. Annealing is done to
Which is false statement about annealing? Annealing is done to
In stress relief annealing, the annealing temperature is relatively low.
Isothermal annealing requires less time than that for full annealing.
If an annealing process is carried completing in 50 min at temperature T and the annealing time is reduced to 25 min, the temperature should be increased by ________
The grain size of pure copper after annealing for 103S is 10 μm. If the time exponent is 0.5, the total time of annealing required to obtain a grain size of 40 μm is . . . . . . . . S.
Which is false statement about annealing?
Annealing is done to