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

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samet mamat answered 9 months ago

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