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  3. a- do you consider hardness an important mechanica

a- Do you consider hardness an important mechanical property? why? (specify few examples). b- Comprare and distinguish...

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Question

Mechanical Engineering

a- Do you consider hardness an important mechanical property?why? (specify few examples).

b- Comprare and distinguish between the Vickers, Brinell, andRockwell tets.

c- which of the following have the highest hardness and why?

Brass, Mild steel, Aluminum

d-What is the purpose of microscope used in Brinell hardnesstest?

Answer & Explanation Solved by verified expert
4.0 Ratings (454 Votes)
a Hardness is genrally very difficult todefine but general defination of hardness is resistance of surfaceof material to scratch abrasion as well as indentation So it is asurface property It is very important property for desingingstructures fatigue components etc For examples cast iron nail canscratch on the stainless steel component from this we can concludethat cast iron nail is more hard than stainless steel One    See Answer
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