期刊论文

Dai, Xiaoyuan

英文

JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

1005-8850

2008

15

3

276-279

10.1016/S1005-8850(08)60052-3

[This work was financially supported by the National Key Fundamental Research and Development Program of China （No. 2005CB623706）.]

本校为其他机构

An ultra-high strength aluminum alloy was produced by casting and then extruded to rods. The effect of heat treatment on the microstructure and mechanical properties of the alloy was investigated. After single ageing (120°C, 24 h), the tensile strength was 812.4 MPa and the elongation was 6.2%. After retrogression reaging (RRA), the tensile strength was 751.2 MPa and the elongation was 6.4%. The strengthening mechanism is considered as fine grain strengthening, substructur...

An ultra-high strength aluminum alloy was produced by casting and then extruded to rods.The effect of heat treatment on the microstructure and mechanical properties of the alloy was investigated.After single ageing(120℃,24 h),the tensile strength was 812.4 MPa and the elongation was 6.2%.After retrogression reaging(RRA),the tensile strength was 751.2 MPa and the elongation was 6.4%.The strengthening mechanism is considered as fine grain strengthening,substructure stre...