Fracture toughness and corrosion properties of the aluminium plate alloys 7010-T651 and 7150-T6E189

Report (1982)
Copyright: Campus only
Tensile tests Mechanical properties Heat treatment Stress intensity factors Compression tests Aluminium alloys Stress corrosion cracking Fracture strength Corrosion tests High strength alloys Salt spray tests Exfoliation corrosion International cooperation Surface reactions
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Published Date

01-12-1982

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NLR-TR 82125 U

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.