Study of texture and microtexture during β to α + β transformation in a Ti–5Ta–1.8Nb alloy
- 作者：T. Karthikeyan ; Arup Dasgupta ; S. Saroja ; R. Khatirkar ; M. Vijayalakshmi ; I. Samajdar
- 关键词：Titanium alloys ; Phase transformation ; X-ray diffraction ; Electron back scatter diffraction and microtexture
- 刊名：Materials Science and Engineering ; A
- 出版年：2008
- 期刊代码：61_09215093
- 类别：ms
- 出版时间：25 June 2008
- 卷：485
- 期：1-2
- 页码：581-588
- 文件大小：2150 K
摘要
This paper discusses the evolution of texture in a Ti–5Ta–1.8Nb alloy during the transformation of ‘deformed ![]()
rc="http://www.sciencedirect.com/scidirimg/entities/204e.gif" alt="greek small letter alpha" title="greek small letter alpha" border="0"> + β → β → ![]()
rc="http://www.sciencedirect.com/scidirimg/entities/204e.gif" alt="greek small letter alpha" title="greek small letter alpha" border="0"> + β’, characterized using X-ray diffraction and Electron Back Scattered Diffraction techniques. It exhibited a deformation texture of type—[1 0 −1 0]//axial direction (AD) for the wire, and a [0 0 0 2]//normal direction (ND) for the cold rolled sheet sample. On subsequent β-homogenization treatment and cooling, the initial deformation texture was replaced with a transformation texture of [1 1 −2 0]//ND for the sheet sample. The wire sample exhibited a transformation texture with (1 1 −2 2) aligned near to the wire cross-section. A deformation texture was found to be essential to introduce transformation texture.