The Evolution of Parent β Texture and Its Effect on the α Variant Selection During Hot Working in Ti60 Alloy
The Evolution of Parent β Texture and Its Effect on the α Variant Selection During Hot Working in Ti60 Alloy
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DOI：
10.1007/s11661-018-4831-9
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发表时间：
2018-07
期刊：
影响因子：
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通讯作者：
Z. B. Zhao;Q. J. Wang;J. R. Liu;J. Tan;R. Yang
中科院分区：
文献类型：
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作者：
Z. B. Zhao;Q. J. Wang;J. R. Liu;J. Tan;R. Yang
利用电子背散射衍射（EBSD）技术研究了Ti60合金在α+β（1005 °C和1035 °C）和β相（1065 °C）热压缩及空冷过程中母相β和相变α相的织构演变。本文讨论了转变α织构形成的原因。α织构的形成与亲本β织构和β→α转变过程中的变体选择有关。通过比较测量的α织构与基于β织构的预测织构（假设没有发生变体选择）来评估变体选择对织构演化的影响。讨论了β相滑移系和β/α帕雷高温织构对变体选择的影响机理。
Texture evolution has been studied in both parentβand transformedαphases during the hot compression of Ti60 alloy in both theα+β(1005 °C and 1035 °C) andβphase (1065 °C) fields, followed by air cooling using detailed electron backscattered diffraction (EBSD) mapping. The reason for the development of the transformedαtextures is discussed in the paper. The formation of theαtexture was associated with the texture of parentβand variant selection duringβ→αtransformation. The effect of variant selection on the texture evolution was assessed by comparing the measuredαtextures with the predicted ones based on theβtexture with the assumption that no variant selection had occurred. The mechanism of variant selection effected by the slip system of theβphase and the high-temperature texture ofβ/αpare also discussed.