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Engineering MaterialsChoose the correct option: Carbon and Nitrogen are introduced into the surface of steel during (i) Normalizing (ii) Cyaniding (iii) Hardening (iv) Tempering20242mEngineering MaterialsWhat is steel? Distinguish between hypoeutectoid and hypereutectoid steels.20248mDatabase Management SystemWhat is the need of normalization? How many types of normalization exist? Explain in detail with suitable examples.20198mEngineering MaterialsDiscuss the method of getting a mixture of Pearlite, Bainite & Martensite steel with a neat TTT diagram.202414m
PreviousChoose the correct option: Which statement about hardness testing is most appropriate for steels? (i) Rockwell hardness directly gives Young's modulus (ii) Brinell hardness can be empirically related to ultimate tensile strength (iii) Vickers hardness is expressed in HRC units (iv) Hardness tests are unrelated to strengthNextChoose the correct option: Identify the correct statement regarding case hardening/surface hardening processes: (i) Harden only high-carbon steels by through hardening (ii) Modify the surface composition by diffusion of carbon and/or nitrogen while keeping a tougher core (iii) Rely only in rapid quenching with no change in composition (iv) Use only flame or induction as heat sources