Effect of different solute additions on dendrite morphology and orientation selection in cast binary magnesium alloys
Effect of different solute additions on dendrite morphology and orientation selection in cast binary magnesium alloys
复制标题
不同溶质添加量对铸造二元镁合金枝晶形貌和取向选择的影响
DOI:
10.1016/j.actamat.2016.04.014
复制
发表时间:
2016-06
期刊:
影响因子:
9.4
通讯作者:
Z. Guo
中科院分区:
文献类型:
--
作者:
M. Yang;S.-M. Xiong;Z. Guo
In solidification, dendritic morphology was observed to change accordingly if either the type or quantity of the additional element was modified. To gain insight into this phenomenon, the 3D dendrite morphology of different binary magnesium alloys, including MgAl, MgBa, MgCa and MgZn alloys was characterized using synchrotron X-ray tomography and electron backscattered diffraction. Results showed that for most Mg-based alloys, the dendrite exhibited a typical 18-branch morphology with preferred growth orientations along< 11 2¯ 0> and< 11 2¯ 3>, whereas for MgZn alloys, the dendrite morphology would change from the 18-branch pattern to 12-branch if the Zn content increased, ie the so-called dendrite orientation transition (DOT) took place. This DOT behaviour of the Mg alloy dendrite was then successfully modelled using the 3D phase field method by changing the magnitude of related parameters in the specially formulated anisotropy function based on spherical harmonics.
登录
查看更多内容
影响因子:
1.8
作者:
M. A. Audero;H. Biloni
通讯作者:
M. A. Audero;H. Biloni
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:
A. Sémoroz;Y. Durandet;M. Rappaz
通讯作者:
A. Sémoroz;Y. Durandet;M. Rappaz
影响因子:
1.2
作者:
F. Weinberg;B. Chalmers
通讯作者:
F. Weinberg;B. Chalmers