New Al-Mg-Sc alloys

被引:298
作者
Filatov, YA [1 ]
Yelagin, VI [1 ]
Zakharov, VV [1 ]
机构
[1] All Russia Inst Light Alloys, Moscow 121596, Russia
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 280卷 / 01期
关键词
weldable alloys; Al-Mg-Sc system; strengthening effect; Al3Sc; nonrecrystallized structure; wrought semiproducts; 01570; alloy; prospects of the usage;
D O I
10.1016/S0921-5093(99)00673-5
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Data on new 01515, 01523, 01535, 01545, 01570 and 01571 wrought weldable alloys based on the Al-Mg-Sc system are presented. These alloys differ from each other, mainly, by magnesium content and belong to the family of non-heat-treatable alloys. Wrought Al-Mg-Sc alloy semiproducts as-hot worked or as-annealed show much higher properties (especially yield strength) than those made from conventional Al-Mg alloys with the same magnesium content. Strengthening relates to both direct strengthening effect of the secondary Al3Sc particles and development of a stable nonrecrystallized structure. Of Al-Mg-Sc alloys, 01570 alloy containing about 6% Mg has found the widest application. Yield strength of hot worked or annealed 01570 alloy semiproducts is at a level of 300 MPa, while yield strength of semiproducts made from a similar scandium-free alloy is about 180 MPa. Prospects of the usage of the new alloys for production of various structures are discussed. Published by Elsevier Science S.A.
引用
收藏
页码:97 / 101
页数:5
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