Effect of cross-rolling on microstructure and texture evolution and tensile behavior of aluminium-copper-lithium (AA2195) alloy

被引：59
作者：
Nayan, Niraj [1 ,3 ]
Mishra, Sumeet [2 ]
Prakash, Aditya [3 ]
Murty, S. V. S. N. [1 ]
Prasad, M. J. N. V. [3 ]
Samajdar, I. [3 ]
机构：
[1] Indian Space Res Org, Vikram Sarabhai Space Ctr, Trivandrum 695022, Kerala, India
[2] Indian Inst Technol Kanpur, Dept Mat Sci & Engn, Kanpur 208016, Uttar Pradesh, India
[3] Indian Inst Technol, Dept Met Engn & Mat Sci, Bombay 400076, Maharashtra, India
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2019年 / 740卷
关键词：
Anisotropy; Microstructure; Al-Li alloys; Cross rolling; Texture; Yield strength; STRAIN PATH CHANGE; SI SHEET ALLOYS; PLASTIC ANISOTROPY; RECRYSTALLIZATION TEXTURES; CRYSTALLOGRAPHIC TEXTURE; MECHANICAL-PROPERTIES; CUBE TEXTURE; DEFORMATION; PRECIPITATE; NUCLEATION;
D O I：
10.1016/j.msea.2018.10.089
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The evolution of microstructure and crystallographic texture during thermo-mechanical processing and their effect on tensile behavior of Al-Cu-Li (AA2195) alloy were investigated in the present work. The initial hot rolled sheets were cold rolled by unidirectional rolling and cross-rolling. These sheets were annealed and imparted T6 (solution treatment + water quenching + aging) temper. Uni-directionally rolled samples exhibited typical copper texture which subsequently transformed to cube component after thermal treatment whereas, the cross rolled sample exhibited brass texture which subsequently weakened upon thermal treatment. The difference in the precipitation characteristics resulted in transition from anisotropic to isotropic strength in cross rolled samples in heat treated condition. The strength anisotropy has been explained based on the average precipitation strengthening factor and accommodation tensor.
引用
收藏
页码：252 / 261
页数：10
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