摘要
The α variant selection of integral as-deposited Ti-6Al-4V prepared by laser solid forming (LSF) has been investigated by Electron Backscattered Diffraction (EBSD). Six types of α variants exist all areas in the deposited cuboid although its microstructure varies from basket-weave to Widmanstätten (and undeveloped basket-weave) to ultrafine basket-weave along building direction. Clusters of three α variants always dominate in medium steady zone until the columnar to equiaxed transition (CET transition) occurs. α variant selection causes strong alteration of high angle grain boundaries (HAGBs), which might be correlated with self-accommodation of shape strains.
源语言 | 英语 |
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页(从-至) | 1261-1266 |
页数 | 6 |
期刊 | Journal of Alloys and Compounds |
卷 | 792 |
DOI | |
出版状态 | 已出版 - 5 7月 2019 |