Achieving ultra-strong Magnesium–lithium alloys by low-strain rotary swaging
Achieving ultra-strong Magnesium–lithium alloys by low-strain rotary swaging
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通过低应变旋锻实现超强镁锂合金
DOI:
10.1080/21663831.2021.1891150
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发表时间:
2021-06
影响因子:
8.3
通讯作者:
Yonghao Zhao
中科院分区:
文献类型:
--
作者:
Yue Yang;Xiang Chen;Jinfeng Nie;Kang Wei;Qingzhong Mao;Fenghua Lu;Yonghao Zhao
Severe plastic deformation (SPD) with deformation strain significantly larger than one is effective to strengthen metals and alloys. However, such a method will not work for Mg alloys due to their low deformability. In view of this problem, we propose a new alloy strengthening scheme of low-strain deformation, which is to introduce massive twins and stacking faults in coarse grain interior by rotary swaging (RS) at room temperature. By using this scheme, we successfully prepared an ultra-light bulk Mg-Li alloy with new strength record. GRAPHICAL ABSTRACT IMPACT STATEMENT This paper explored a new strengthening way of low deformation strain for metals and alloys and successfully prepared a strongest ultra-light Mg–Li alloy by low-strain rotary swaging process.
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