The role of nano-scaled structural non-uniformities on deformation twinning and stress-induced transformation in a cold rolled multifunctional β-titanium alloy

被引：47
作者：
Liang, Qianglong [1 ,2 ,3 ]
Kloenne, Zachary [2 ,3 ]
Zheng, Yufeng [2 ,3 ,4 ]
Wang, Dong [1 ]
Antonov, Stoichko [5 ]
Gao, Yipeng [3 ,7 ]
Hao, Yulin [6 ]
Yang, Rui [6 ]
Wang, Yunzhi [2 ,3 ]
Fraser, Hamish L. [2 ,3 ]
机构：
[1] Xi An Jiao Tong Univ, Ctr Microstruct Sci, Frontier Inst Sci & Technol, State Key Lab Mech Behav Mat, Xian, Shannxi, Peoples R China
[2] Ohio State Univ, Ctr Accelerated Maturat Mat CAMM, Columbus, OH 43210 USA
[3] Ohio State Univ, Dept Mat Sci & Engn, 116 W 19Th Ave, Columbus, OH 43210 USA
[4] Univ Nevada Reno, Dept Chem & Mat Engn, 1664 N Virginia St, Reno, NV 89557 USA
[5] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, State Key Lab Adv Met & Mat, Beijing, Peoples R China
[6] Chinese Acad Sci, Inst Met Res, Shenyang, Liaoning, Peoples R China
[7] Idaho Natl Lab, 2525 Fremont Ave, Idaho Falls, ID USA
来源：
SCRIPTA MATERIALIA | 2020年 / 177卷
基金：
美国国家科学基金会; 中国国家自然科学基金;
关键词：
Titanium alloys; Deformation twinning; Stress-induced alpha '' martensite; Stress-induced omega phase; O ' phase; MARTENSITIC-TRANSFORMATION; OMEGA-PHASE; TRANSITIONAL STRUCTURE; MECHANICAL-PROPERTIES; PLASTIC-DEFORMATION; HIGH-STRENGTH; ALPHA; PRECIPITATION; BOUNDARY; ORIGIN;
D O I：
10.1016/j.scriptamat.2019.10.029
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The microstructure in a multifunctional beta-titanium alloy, Ti-24Nb-4Zr-8Sn (wt%), before and after cold rolling was investigated using conventional and aberration-corrected scanning/transmission electron microscopy. With the presence of nano-scaled orthorhombic phase (O') and hexagonal phase (omega), primary (332)<113>(beta) deformation twins were activated during cold rolling with a thin layer of orthorhombic martensite (alpha '') occupying every twin boundary. In the interior of primary twins, nano-scaled alpha '' particles were observed, together with secondary {112}<111>(beta) twins. Our work may indicate that the preformed nano-scaled 0' phase assists in activating the {332)<113>(beta) deformation twining and O' phase transforms to nano-scaled stress-induced alpha '' during cold rolling. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：181 / 185
页数：5
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