a. What is the Brinell hardness number (HB) for 1020 Steel that has been annealed at 785 "C? (Check Appendix B.4 for needed information] b. What diameter (d) indentation would you expect for a 10-mm-diameter indenter under 1000-kg load?

a. What is the Brinell hardness number (HB) for 1020 Steel that has been annealed at 785 "C? (Check Appendix B.4 for needed information] b. What diameter (d) indentation would you expect for a 10-mm-diameter indenter under 1000-kg load?

Elements Of Electromagnetics

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ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.

Question

4. Assuming the following proportional relationship for steel alloys: TS = 3.45 x HB,
where TS is in MPa.
a. What is the Brinell hardness number (HB) for 1020 Steel that has been annealed
at 785 "C? [Check Appendix B.4 for needed information]
b. What diameter (d) indentation would you expect for a 10-mm-diameter indenter
under 1000-kg load?

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