Evolution of Texture from a Single Crystal Ti-6Al-4V Substrate During Electron Beam Directed Energy Deposition
Evolution of Texture from a Single Crystal Ti-6Al-4V Substrate During Electron Beam Directed Energy Deposition
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DOI：
10.1007/s11661-017-4219-2
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发表时间：
2017-10-01
影响因子：
2.8
通讯作者：
Pilchak, Adam L.
中科院分区：
文献类型：
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作者：
Butler, Todd M.;Brice, Craig A.;Pilchak, Adam L.
Ti-6Al-4V的增材制造通常产生与构建方向对齐的aOE（c）001 >（β）-纤维纹理。我们已经进行了线馈电电子束定向能量沉积在{112}（β）平面上的一个单一的先前的β-晶粒。构建物最初从衬底外延生长，优选的aOE（c）001 >生长方向显著地远离构建方向成角度。然而，连续的层沉积驱动与构建方向和最强热梯度方向对齐的aOE（c）001 >（β）-纤维织构的形成。
Additive manufacturing of Ti-6Al-4V commonly produces aOE (c) 001 > (beta) -fiber textures aligned with the build direction. We have performed wire-feed electron beam directed energy deposition on the {112} (beta) plane of a single prior beta-grain. The build initially grew epitaxially from the substrate with the preferred aOE (c) 001 > growth direction significantly angled away from the build direction. However, continued layer deposition drove the formation of a aOE (c) 001 > (beta) -fiber texture aligned with the build direction and the direction of the strongest thermal gradient.