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Aging precipitation process and kinetics of Mg-8Zn-4Al-0.3Mn-xRE alloy
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[1]Guan Shaokang,Cao Wenbo,Wang Yingxin,et al.Aging precipitation process and kinetics of Mg-8Zn-4Al-0.3Mn-xRE alloy[J].Journal of Zhengzhou University (Engineering Science),2003,24(02):1-5.[doi:10.3969/j.issn.1671-6833.2003.02.001]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 24 Number of periods: 2003年02期 Page number: 1-5 Column: Public date: 1900-01-01
Title:
Aging precipitation process and kinetics of Mg-8Zn-4Al-0.3Mn-xRE alloy
Author(s):
Guan Shaokang; Cao Wenbo; Wang Yingxin; etc

Keywords:

CLC:
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DOI:
10.3969/j.issn.1671-6833.2003.02.001
Abstract:
The aging precipitation process and its kinetics of Mg-8Zn-4Al-0.3Mn-xRE alloy were analyzed by metallographic microscopy and DSC, and the results showed that the aging precipitation process of Mg-8Zn-4Al-0.3Mn alloy without RE elements was as follows: supersaturated solid solution→ fine diffusion precipitated phase→ recrystallization softening and aggregation and growth of precipitated phase. The aging precipitation process of Mg-8Zn-4Al-0.3Mn alloy with RE element is as follows: supersaturated solid solution→ fine dispersion precipitated phase→ aggregation and growth of precipitated phase. After artificial aging, compared with the alloy without RE, the peak microhardness of alloy 2, 3 and 4 increased by 5.6%, 9% and 13.4%, respectively. With the increase of RE element content, the activation energy of precipitated phase formation of the alloy gradually increases

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Last Update: 1900-01-01
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