Fracture toughness and corrosion properties of the aluminium plate alloys 7010-T651 and 7150-T6E189
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Abstract
A comparative experimental investigation was done on the advanced plate alloys 7010-T651 from ALCAN and 7150-T6E189 from ALCOA. The mechanical properties, fracture toughness and corrosion properties were determined. The most notable finding was the excellent fracture toughness of alloy 7150-T6E189 combined with a high tensile strength. The resistance to stress corrosion crack initiation of the two alloys was almost similar, while the stress corrosion crack growth rate was evidently higher in alloy 7150-T6E189.
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