On the design of new 尾-metastable titanium alloys with improved work hardening rate thanks to simultaneous TRIP and TWIP effects

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• 作者：Matthieu Marteleur^a ; Fan Sun^b ; Thierry Gloriant^c ; Philippe Vermaut^b ; Pascal J. Jacques^a ; ^{pascal.jacques@uclouvain.be} ; Fré ; dé ; ric Prima^b
• 关键词：Titanium alloys (Ti) ; Stress-induced martensite ; Deformation twinning ; Large plasticity
• 刊名：Scripta Materialia
• 出版年：2012
• 期刊代码：157_13596462
• 类别：et
• 出版时间：May, 2012
• 卷：66
• 期：10
• 页码：749-752
• 文件大小：633 K

摘要

In this work, preliminary results are presented on attempts to develop a new family of titanium alloys with high ductility induced by combined transformation-induced plasticity and twinning-induced plasticity effects. Mechanical tests carried out on a binary 尾-metastable Ti-12 wt.%Mo alloy designed by a formulation strategy based on the 鈥?em>d-electron alloy design鈥?show a very high work hardening rate. X-ray diffraction, electron backscattered diffraction and transmission electron microscopy reveal the mechanical activation of twinning and of 伪鈥? 伪鈥?and 蠅 phases.