Microstructural evolution of a ductile metastable β titanium alloy with combined TRIP/TWIP effects

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• 作者：J.Y. Zhang^a ; ^b ; ^c ; ^{jyzhang@cumt.edu.cn} ; J.S. Li^c ; ^{ljsh@nwpu.edu.cn} ; Z. Chen^a ; Q.K. Meng^a ; F. Sun^b ; ^{sunfan82@gmail.com} ; B.L. Shen^a
• 关键词：Metastable β titanium alloy ; Microstructural characterization ; Tensile property ; Martensitic phase transformation ; Mechanical twinning
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：30 March 2017
• 年：2017
• 卷：699
• 期：Complete
• 页码：775-782
• 全文大小：2958 K
• 卷排序：699

文摘

The Ti-12Mo alloy displays a superior combination of high strength, large ductility and improved strain-hardening. The deformation mechanism were mechanical twinning, {112}〈111〉 and {332}〈113〉 and SIM α″ phase transformations. Primary mechanical twinning and primary SIM α″ phase were activated simultaneously in the β matrix. Secondary mechanical twinning and secondary SIM α″ phase were triggered in the twinned β zones.