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Engineering MaterialsChoose 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 strength20252mEngineering MaterialsExplain the following: Case Hardening20243.5mEngineering MaterialsWrite a short note on: Surface hardening20257mEngineering MaterialsDescribe how to use TTT and CCT diagrams to predict the final microstructure and hardness for different cooling paths.20257m
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