Effect of chemical composition on the structural strength characteristics of alloy 1201 sheet
The copper content of alloy 1201 sheet has a fundamental effect on its structural strength characteristics. With an increased copper content within limits permitted by the standard, fracture toughness and fatigue life are reduced, but fatigue crack growth rate and alloy sensitivity to stress concentration increase.
Cold deformation between quenching and artificial aging makes it possible to increase the strength properties of sheet with a simultaneous increase in fracture toughness and a reduction in fatigue crack growth rate.
KeywordsCopper Fatigue Fracture Toughness Fatigue Crack Stress Concentration
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