Engineering Materials
Cyaniding is the process of

Reacting steel surface with cyanide salts
Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness
Dipping steel in cyanide bath
Obtaining cyanide salts

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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
Cup and cone formation is characteristic for brittle materials
Brittle fracture is always preceded by noise
High temperature and low strain rates favour brittle fracture

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