Influence of grain size and orientation on the uneven precipitation in Al-Cu-Li alloys

被引：0

作者：

Yang, Xusheng ^{[1
]}

Wang, Xin ^{[1
,2
]}

Huang, Weijiu ^{[1
,2
]}

Lu, Dehong ^{[2
]}

Liu, Mofan ^{[1
]}

Zhu, Xianghui ^{[1
]}

Dong, Haipeng ^{[3
,4
]}

Qiu, Weiyi ^{[3
,4
]}

机构：

[1] Chongqing Univ Arts & Sci, Coll Mat Sci & Engn, Chongqing 402160, Peoples R China

[2] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China

[3] Chongqing Mat Res Inst Co Ltd, Chongqing 400707, Peoples R China

[4] Natl Engn Res Ctr Instrument Funct Mat, Chongqing 400707, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 33卷

基金：

中国国家自然科学基金;

关键词：

Al-Li alloy; Cystal orientation; T; 1; phase; Uneven precipitation; CRYSTALLOGRAPHIC TEXTURE; PLASTIC-DEFORMATION; T-1; PHASE; ANISOTROPY; MICROSTRUCTURE; MG; EVOLUTION; QUANTIFICATION; STRENGTH; BEHAVIOR;

D O I：

10.1016/j.jmrt.2024.11.218

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of grain size and orientation on the precipitation behavior of the T1 (Al2CuLi) phase in 2050 T8 sheets are quantitatively investigated using transmission Kikuchi diffraction (TKD) and transmission electron microscope (TEM). The results indicate that the T1 phase predominantly precipitates at high densities on the activated slip planes, results in a reduction of the precipitation strengthening effect. In grains of near the R-Cube orientation, the volume fraction of T1 phase within the sub-grains is approximately 12% higher than that in the recrystallized grains, while the contribution to strengthening effect through precipitation is comparable.

引用

页码：8780 / 8788

页数：9

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