Compilation of Mechanical Property Data for Improperly Quenched (Soft) Aluminum Plates
Final rept. Aug 1979-Oct 1980
AIR FORCE WRIGHT AERONAUTICAL LABS WRIGHT-PATTERSON AFB OH
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Data is summarized from a number of investigations that dealt with the overall issue of substrength aluminum plates. An improper heat-treatment resulted in localized areas of the plates with low mechanical properties. For these plates it is shown that tensile, compression, and bearing strengths are significantly reduced fatigue properties are reduced, particularly for 2000- series alloys fatigue crack growth rates are faster in 2000-series alloys but may be slower in high strength 7000-series alloys stress corrosion properties are not reduced toughness may increase and the loss of strength can be reflected in electrical conductivity and hardness readings. This report also contains a statistical evaluation of tensile data from this study and other sources relating yield and ultimate tensile with electrical conductivity and hardness.
- Metallurgy and Metallography
- Fabrication Metallurgy