Evaluation of strain fields caused by the η′ phase in an Al-Zn-Mg-Cu alloy

被引：11

作者：

Hou, Xiaohu ^{[1
]}

Bai, Pucun ^{[2
]}

机构：

[1] Inner Mongolia Univ Technol, Test Ctr, Hohhot, Peoples R China

[2] Inner Mongolia Univ Technol, Coll Mat Sci & Engn, Hohhot 010051, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 683卷

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Strain field; High-resolution transmission electron microscopy; eta ' phase; Al-Zn-Mg-Cu alloy; ELECTRON-MICROSCOPY; ALUMINUM; DISPLACEMENT; COMPOSITES; MATRIX; HREM;

D O I：

10.1016/j.msea.2016.10.065

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Strain fields around the phase precipitated in an Al-12Zn-2.4Mg-1.1Cu alloy were quantitatively measured employing high-resolution transmission electron microscopy (HRTEM) and geometric phase analysis (GPA) technique. Afterwards, experimental strain maps were compared with the simulated strain maps obtained from a simulated HRTEM image which was created using the CrystalMaker and JEMS software. Compressive strain is found around the phase, and the maximum compressive strain is about 2.8%. The simulated results are consistent with the experimental results to describe the distributions of strain fields around the eta' phase along the x direction which is parallel to [(1) over bar(1) over bar1](Al) direction.

引用

页码：90 / 93

页数：4

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