Kink band induced β → α phase transformation in lamellar α plus β Ti alloys

被引：1
|
作者：
Zheng, Xiaodong [1 ,2 ]
Sun, Kaixin [1 ]
Ma, Yingjie [2 ]
Yang, Rui [2 ]
Zheng, Shijian [1 ,2 ]
机构：
[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin Key Lab Mat Laminating Fabricat & Interfac, Tianjin, Peoples R China
[2] Chinese Acad Sci, Inst Metal Res, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China
来源：
MATERIALS RESEARCH LETTERS | 2024年 / 12卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Transmission electron microscopy; Ti alloys; kink band; phase transformation; ROOM-TEMPERATURE DEFORMATION; MECHANICAL-PROPERTIES; PLASTIC ZONE; TITANIUM; MICROSTRUCTURE; ANISOTROPY; BEHAVIOR; SLIP;
D O I：
10.1080/21663831.2024.2313076
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Generally, deformation in Ti and Ti alloys are dominated by dislocations and deformation twins. In this work, a novel deformation band (DB) has been observed in the fully lamellar Ti-6Al-4V alloy. Through transmission electron microscopy (TEM) investigation, the DB is determined as a kink band (KB) resulting from the pile-up of < a > dislocations on {10(1) over bar 0} prismatic planes. More intriguingly, the KB can pass through the beta phase and then induce the phase transformation from beta to alpha phase, and the accompanying composition change may have been accommodated by diffusion driven by the high deformation energy under severe deformation conditions.
引用
收藏
页码：273 / 280
页数：8
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