Engineering Materials
Which of the following statement is true about brittle fracture?

Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture
Brittle fracture is always preceded by noise
High temperature and low strain rates favour brittle fracture
Cup and cone formation is characteristic for brittle materials

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Engineering Materials
Specify the sequence correctly

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

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