Enhanced ductility and strength in a cast Al–Mg alloy with high Mg content
Enhanced ductility and strength in a cast Al–Mg alloy with high Mg content
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高镁含量铸造铝镁合金的延展性和强度得到提高
DOI:
10.1016/j.msea.2021.140806
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发表时间:
2021-03
期刊:
影响因子:
6.4
通讯作者:
Dahle Arne K.
中科院分区:
文献类型:
--
作者:
Liu Zhibo;Sun Jiani;Yan Zhigang;Lin Yaojun;Liu Manping;Roven Hans J.;Dahle Arne K.
Cast Al–Mg alloys with high Mg content have attracted considerable interest as a result of exceptionally low mass density and enhanced Mg solid-solution strengthening effect. However, poor ductility in this class of cast Al–Mg alloys originating from the increased amount of brittle Al3Mg2phase presents a challenge. This work aims to improve ductility of a cast Al-10 wt%Mg alloy by prolonging time and/or increasing temperature during solid-solution treatment, hence minimizing the amount of the Al3Mg2phase. The amounts of Al3Mg2decrease and the concentrations of solute Mg increase with prolonging time and/or increasing temperature, improving both ductility and strength. Solid-solution treatment at 425 °C for 9 h or at 438 °C for 3 h induces complete dissolution of the Al3Mg2phase, achieving an average uniform elongation of ~27% accompanied by an average 0.2% offset yield strength of ~186 MPa. The mechanisms improving both ductility and strength are discussed.
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影响因子:
6.2
作者:
E. Brosh;H.W. Wang;Z.J. Wei;T.J. Li
通讯作者:
T.J. Li
DOI:
10.31399/asm.tb.pdub.t53420429
发表时间:
2004
期刊:
--
影响因子:
--
作者:
D. Stefanescu
通讯作者:
D. Stefanescu
DOI:
10.31399/asm.hb.v09.a0003724
发表时间:
1990-06
期刊:
--
影响因子:
--
作者:
W. Kurz;D. Fisher
通讯作者:
W. Kurz;D. Fisher
影响因子:
9.4
作者:
Zha, Min;Li, Yanjun;Roven, Hans J.
通讯作者:
Roven, Hans J.
DOI:
10.1201/9781420061345-12
发表时间:
2008
期刊:
--
影响因子:
--
作者:
D. Roylance
通讯作者:
D. Roylance