Research progress on effect of nano-precipitates on mechanical property anisotropy of Al-Li alloys

被引：4

作者：

Guo Y.-J. ^{[1
]}

Zhang L. ^{[1
]}

Wu G.-H. ^{[1
]}

Li L.-B. ^{[2
]}

Xiong X.-M. ^{[2
]}

Geng Y.-J. ^{[3
]}

Ren G.-X. ^{[3
]}

机构：

[1] School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai

[2] Jiangxi Ganfeng Lithium Co., Ltd., Xinyu

[3] Shanxi Jianghuai Heavy Industry Co., Ltd., Jincheng

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2023年 / 33卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Al-Li alloy; anisotropy; numerical modeling; precipitate; texture;

D O I：

10.11817/j.ysxb.1004.0609.2022-43622

中图分类号：

学科分类号：

摘要：

Al-Li alloys have been extensively used in the aerospace field attributed to the advantages of low density, high specific strength, high damage tolerance and superior corrosion resistance. However, these alloys exhibit the strong mechanical property anisotropy, which restricts further engineering applications. The investigation results show that nano-precipitates are key factors affecting the anisotropy. In this paper, the effect of nano-precipitates on mechanical property anisotropy of Al-Li alloys were reviewed. The direct role of (Cu, Li)containing aging reinforcing phases on anisotropy was expounded emphatically, as well as the associated numerical prediction models. The indirect effect of (Zr, Mn)-enrich phases on anisotropy was also systematically analyzed. Then, several effective methods to reduce anisotropy, such as alloy composition control, deformation process optimization and aging treatment optimization, were summarized. Ultimately, the unsolved and challenging scientific issues are highlighted with some aspects desiring further exploration. It is feasible to provide ideas and inspiration for scholars to better comprehend the relationship between nano-precipitates and mechanical property anisotropy of Al-Li alloys based on the current domestic and internation research status. © 2023 Central South University of Technology. All rights reserved.

引用

页码：2371 / 2384

页数：13

共 64 条

[1] LI Jin-feng, NING Hong, LIU Dan-yang, Et al., Alloying and micro-alloying in Al-Cu-Li series alloys, The Chinese Journal of Nonferrous Metals, 31, 2, (2021)
[2] WU Guo-hua, SUN Jiang-wei, ZHANG Liang, Et al., Current status and prospects of research and application of aluminum-lithium alloy, Nonferrous Metals Science and Engineering, 10, 2, (2019)
[3] RIOJA R J, LIU J., The evolution of Al-Li base products for aerospace and space applications, Metallurgical and Materials Transactions A, 43, 9, (2012)
[4] XU X X, WU G H, ZHANG L, Et al., Effects of heat treatment and pre-stretching on the mechanical properties and microstructure evolution of extruded 2050 Al-Cu-Li alloy, Materials Science and Engineering A, 845, (2022)
[5] HUANG J C, ARDELL A J., Precipitation strengthening of binary Al-Li alloys by δ′precipitates, Materials Science and Engineering A, 104, (1988)
[6] RIOJA R J., Fabrication methods to manufacture isotropic Al-Li alloys and products for space and aerospace applications, Materials Science and Engineering A, 257, 1, (1998)
[7] YANG Shou-jie, LU Jian, FENG Zhao-hui, Et al., The history of Al-Li alloys and the research development in China, Materials Reports, 28, S2, (2014)
[8] BOIS-BROCHU A, BLAIS C, GOMA F A T, Et al., Characterization of Al-Li 2099 extrusions and the influence of fiber texture on the anisotropy of static mechanical properties[J], Materials Science and Engineering A, 597, (2014)
[9] BOIS-BROCHU A, BLAIS C, TCHITEMBO GOMA F A, Et al., Modelling of anisotropy for Al-Li 2099 T83 extrusions and effect of precipitate density, Materials Science and Engineering A, 673, (2016)
[10] EXAMILIOTI T N, KLUSEMANN B, KASHAEV N, Et al., Anisotropy and size effect in tensile mechanical properties of Al-Cu-Li 2198 alloy[J], Procedia Structural Integrity, 5, (2017)

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