Aging behavior of high zinc Al-Zn-Mg-Cu alloy prepared by spray forming

CUI Hua; WANG Hongbin; CHENG Junsheng; HAO Bin; DUAN Xianjin; ZHANG Jishan

doi:10.13374/j.issn1001-053x.2006.10.028

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CUI Hua, WANG Hongbin, CHENG Junsheng, HAO Bin, DUAN Xianjin, ZHANG Jishan. Aging behavior of high zinc Al-Zn-Mg-Cu alloy prepared by spray forming[J]. Chinese Journal of Engineering, 2006, 28(10): 937-940. doi: 10.13374/j.issn1001-053x.2006.10.028

Citation:

CUI Hua, WANG Hongbin, CHENG Junsheng, HAO Bin, DUAN Xianjin, ZHANG Jishan. Aging behavior of high zinc Al-Zn-Mg-Cu alloy prepared by spray forming[J]. Chinese Journal of Engineering, 2006, 28(10): 937-940. doi: 10.13374/j.issn1001-053x.2006.10.028

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Aging behavior of high zinc Al-Zn-Mg-Cu alloy prepared by spray forming

doi: 10.13374/j.issn1001-053x.2006.10.028

1. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. Materials Science and Engineering School, Anshan University of Science and Technology, Anshan 114044, China;
3. The State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2005-08-03
Rev Recd Date: 2006-06-08

Available Online: 2021-08-24

Abstract

Abstract

The microstructure and mechanical properties of high Zn Al-Zn-Mg-Cu aluminum alloys prepared by spray forming technology with different aging treatments were investigated. The results showed that strengthening phases precipitated from grain boundary during natural aging treatment, and with the prolong action of aging time the precipitate phases of single aging alloys grew up gradually. The precipitate phases of double aging alloys got coarsened and the precipitate phases of grain boundary were intermittence. The regression-reaging treated alloys possessed fine grain-interior precipitate phases and the discontinuous grain-boundary phases as the same as those of two-step aging alloys. Compared with peak aging alloys, the ultimate tensile strength (UTS) of two-step aging alloys reduced by about 13%, but UTS of regression-reaging treated alloys excelled that of peak aging alloys.
- high zinc aluminum alloys,
- spray forming,
- microstructure,
- mechanical properties,
- aging precipitation behavior