Pattern selection of twinned growth in aluminum alloys during Bridgman solidification
Pattern selection of twinned growth in aluminum alloys during Bridgman solidification
复制标题
布里奇曼凝固过程中铝合金孪晶生长的模式选择
DOI：
10.1016/j.jallcom.2018.01.134
复制
发表时间：
2018-04
影响因子：
6.2
通讯作者：
Fu Hengzhi
中科院分区：
文献类型：
--
作者：
Yang Luyan;Li Shuangming;Guo Junbo;Fan Kai;Li Yang;Zhong Hong;Fu Hengzhi
By using the electron backscattered diffraction (EBSD) technique, pattern selection of twinned growth in Al-4.5 wt% Cu alloy has been studied in Bridgman solidification experiments. Based on the original twin planes formed at 3000 μm/s, the twinned growth was produced till the end of solidification after abruptly decreasing the growth rate to 100, 50, 20, 10, 5, 3, 1 and 0.3 μm/s. The stable twinned growth could be achieved during a wide range of solidification process. For the first time, the so-called twinned cell pattern was observed and prevailed in the solidified structure at 3 and less than 3 μm/s. The twinned growth in aluminum alloy was not limited to dendrite pattern as has previously been reported. The twinned pattern selection map was also revealed. Meanwhile, an interesting orientation rotation phenomenon was elucidated using EBSD technique on both sides of the coherent twin boundary during twinned cell growth. At a lower rate of 0.3 μm/s, the orientation rotation deflection concerning the original Σ3 60° twinning relation was confirmed. Some coincidence site lattice boundaries with higher Σ values served as the preferred states for this orientation deflection during growth.
登录
查看更多内容
DOI：
10.1007/s11661-997-0097-3
发表时间：
1997
期刊：
Metallurgical and Materials Transactions A
影响因子：
--
作者：
S. Henry;M. Rappaz;P. Jarry;P. Jouneau
通讯作者：
S. Henry;M. Rappaz;P. Jarry;P. Jouneau
DOI：
10.1017/cbo9780511623165
发表时间：
1991-04
期刊：
--
影响因子：
--
作者：
W. Tiller
通讯作者：
W. Tiller
影响因子：
4.5
作者：
Lei Li;Yudong Zhang;C. Esling;Zhi-hao Zhao;Y. Zuo;Haitao Zhang;J. Cui
通讯作者：
Lei Li;Yudong Zhang;C. Esling;Zhi-hao Zhao;Y. Zuo;Haitao Zhang;J. Cui
影响因子：
6
作者：
M. Rappaz;J. Friedli;A. Mariaux-;M. A. Salgado-Ordorica
通讯作者：
M. Rappaz;J. Friedli;A. Mariaux-;M. A. Salgado-Ordorica
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