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Hardness effect on thermal fatigue damage of hot-working tool steel

Dhouha Mellouli,N Haddar,Alain Koster,Hassine Ferid Ayedi

Engineering Failure Analysis（2014）

Cited 60|Views8
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Abstract
•At high temperature, the behavior of the both steel is similarly.•The modulus of elasticity does not influenced by hardness.•The increase of the hardness decreases the crack propagation rate.•Heat treatment has not major effects on the crack initiation period.
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Key words
Hot-working tool steel,Thermal fatigue test,Hardness,Crack initiation period,Crack growth rate
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