Grain growth, recrystallisation, stress relief

Stress relief, grain growth, recrystallisation

Stress relief, recrystallisation, grain growth

Grain growth, stress relief, recrystallisation

naked eye

optical microscope

metallurgical microscope

X-ray techniques

naked eye

optical microscope

metallurgical microscope

none of these

naked eye

optical microscope

metallurgical microscope

X-ray techniques

there is no change in grain size

the average grain size is a minimum

the grain size increases very rapidly

the grain size first increases and then decreases very rapidly.