3D reconstruction of prior β grains in friction stir–processed Ti–6Al–4V
3D reconstruction of prior β grains in friction stir–processed Ti–6Al–4V
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搅拌摩擦加工的 Ti-6Al-4V 中原有 β 晶粒的 3D 重建
DOI：
10.1111/jmi.12137
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发表时间：
2014
影响因子：
2
通讯作者：
M. Groeber
中科院分区：
文献类型：
--
作者：
Jaimie S. Tiley;A. Shiveley;A. Shiveley;A. Pilchak;Paul A. Shade;M. Groeber
通过在双束聚焦离子束扫描电子显微镜中进行三维连续切片获得的测量α相取向，重建了经摩擦搅拌处理的Ti-6Al-4V中心搅拌区中的先前β晶粒结构和取向。对数据进行处理，以获得体积中的α菌落和β晶粒尺寸分布。单独分析几个β晶粒，以确定独特α变体的总数和每种变体各自的体积分数。分析显示，一些谷物经历了压倒性的变体选择（即一种变体占主导地位），而其他β谷物包含所有12种变体的更均匀分布的混合物。
The prior β grain structure and orientations in the central stir zone of friction stir–processed Ti–6Al–4V were reconstructed from measured α phase orientations obtained by three‐dimensional serial sectioning in a dual‐beam focused ion beam scanning electron microscope. The data were processed to obtain the α colony and β grain size distributions in the volume. Several β grains were individually analysed to determine the total number of unique α variants and the respective volume fractions of each. The analysis revealed that some grains experienced overwhelming variant selection (i.e. one variant dominated) whereas other β grains contained a more evenly distributed mixture of all 12 variants.