The synergy effect of fine and coarse grains on enhanced ductility of bimodal-structured Mg alloys
The synergy effect of fine and coarse grains on enhanced ductility of bimodal-structured Mg alloys
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细晶粒和粗晶粒对双峰结构镁合金塑性增强的协同作用
DOI:
10.1016/j.jallcom.2018.11.229
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发表时间:
2019-04
影响因子:
6.2
通讯作者:
Qi-chuan Jiang
中科院分区:
文献类型:
--
作者:
Hang Zhang;Hui-yuan Wang;Jin-guo Wang;Jian Rong;Min Zha;Cheng Wang;Pin-kui Ma;Qi-chuan Jiang
A novel Mg-8Al-2Sn-1Zn alloy with a bimodal structure prepared by hard-pate-rolling (HPR) exhibits both higher tensile strength and ductility than its fine-grained counterparts prepared by conventional rolling. By delicate electron back-scatter diffraction (EBSD) analysis, we found fine grains with weak basal texture is beneficial for basal slip and favors initial deformation. Meanwhile, coarse grains with a strong basal texture could accommodate abundant newly generated dislocations, promoting work hardening after fine grains are saturated with dislocations. For the first time, individual roles of fine and coarse grains and their synergy effect on enhancing ductility in bimodal structured Mg alloys is clarified.
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影响因子:
9.4
作者:
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通讯作者:
Qing Liu
影响因子:
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作者:
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DOI:
10.1007/s11661-009-0040-x
发表时间:
2010-04-01
影响因子:
2.8
作者:
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Roven, H. J.
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Zha, Min;Li, Yanjun;Roven, Hans J.
通讯作者:
Roven, Hans J.