Anomalous Tension Twinning Activity in Extruded Mg Sheet During Hard-Orientation Loading at Room Temperature

被引：36

作者：

Chai, Y. Q. ^{[1
]}

Boehlert, C. J. ^{[2
]}

Wan, Y. F. ^{[1
]}

Huang, G. H. ^{[1
]}

Zhou, H. ^{[3
]}

Zheng, J. ^{[4
]}

Wang, Q. D. ^{[5
]}

Yin, D. D. ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Sichuan, Peoples R China

[2] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA

[3] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nano & Heterogeneous Mat Ctr, Nanjing 210094, Peoples R China

[4] Chongqing Univ, Coll Mat Sci & Engn, Int Joint Lab Light Alloys, Shenyang Natl Lab Mat Sci,Minist Educ, Chongqing 400044, Peoples R China

[5] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Natl Engn Res Ctr Light Alloys Net Forming, Shanghai 200240, Peoples R China

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2021年 / 52卷 / 02期

基金：

中国国家自然科学基金;

关键词：

GRAIN-BOUNDARIES; SLIP TRANSFER; Y SHEETS; DEFORMATION; MICROSTRUCTURE; DISLOCATION; NUCLEATION; PLASTICITY; EVOLUTION; SELECTION;

D O I：

10.1007/s11661-020-06093-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The surface twins were characterized for a strongly basal-textured Mg sheet that was deformed under tension in the extrusion direction (hard-orientation). All the twins observed were tension twins. A significant number of them exhibited negative Schmid factor (m) and Luster-Morris parameter (m ') values. Both a normalized m and grain-boundary misorientation were correlated to the twinning behavior, which was shown to be more dependent on the local conditions than the globally applied stress, thereby limiting the m and m ' correlations. [GRAPHICS] .

引用

页码：449 / 456

页数：8

共 41 条

[1] Slip transfer and plastic strain accumulation across grain boundaries in Hastelloy X [J].