Question

In: Mechanical Engineering

1.A materials fatigue resistance can be improved by removing sharp corners in the geometric design of...

1.A materials fatigue resistance can be improved by

removing sharp corners in the geometric design of the component

introducing a residual compressive stress on the surface of the component.

operating the component at temperatures above its melting point

introducing surface flaws to the component

2.What test is used to determine the toughness of a material under shock loading?

hardness test

Impact test

compression test

tensile test

3.Martensite

is a phase that consists of lamellar arrangement of iron and cementite

is harder than pearlite

is harder than ferrite

has a high level of ductility

Solutions

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