Structure and mechanical properties of aging Al-Li-Cu-Zr-Sc-Ag alloy after severe plastic deformation by high-pressure torsion

被引：12

作者：

Kaigorodova, L. I. ^{[1
]}

Rasposienko, D. Yu. ^{[1
]}

Pushin, V. G. ^{[1
]}

Pilyugin, V. P. ^{[1
]}

Smirnov, S. V. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Met Phys, Ural Branch, Ekaterinburg 620990, Russia

[2] Russian Acad Sci, Inst Machine Sci, Ural Branch, Ekaterinburg 620049, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2015年 / 116卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

severe plastic deformation; high-pressure torsion; aging; recrystallization; supersaturated solid solution decomposition; nanocrystalline structure; boundaries; phase; grain dislocations; vacancies; microhardness; STABILITY; BEHAVIOR; PHASE;

D O I：

10.1134/S0031918X15040080

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The structural and phase transformations have been studied in aging commercial aluminum-lithium alloy Al-1.2 Li-3.2 Cu-0.09 Zr-0.11 Sc-0.4 Ag-0.3 Mg in the as-delivered state and after severe plastic deformation by torsion for 1, 5 and 10 revolutions under a high pressure of 4 GPa. Deformation-induced nanofragmentation and dynamic recrystallization have been found to occur in the alloy. The degree of recrystallization increases with deformation. Nanofragmentation and recrystallization processes are accompanied by the deformation-induced decomposition of solid solution and changes in both the nucleation mechanism of precipitation and the phase composition of the alloy. The influence of a nanostructured nanophase state of the alloy on its mechanical properties (microhardness, plasticity, elastic modulus, and stiffness) is discussed.

引用

页码：346 / 355

页数：10

共 50 条

[41] Structure and mechanical properties of a Zr-1Nb alloy, obtained by the method of severe plastic deformation [J].

Stepanova, E. N. ;

Grabovetskaya, G. P. ;

Mishin, I. P. ;

Bulinko, D. Yu. .

MATERIALS TODAY-PROCEEDINGS, 2015, 2 (01) :365-369

[42] Approaching 1 GPa Ultra-High Tensile Strength in a Nanostructured Al-Zn-Mg-Cu-Zr-Sc Alloy Prepared by Severe Plastic Deformation [J].

Shen, Gaoliang ;

Li, Mingxi ;

Liu, Jiashuo ;

Zheng, Ruixiao ;

Xiang, Zhilei ;

Ma, Xiaozhao ;

Huang, Jingcun ;

Li, Jihao ;

Zhou, Zongyi ;

Chen, Ziyong .

ADVANCED ENGINEERING MATERIALS, 2024, 26 (12)

[43] Influence of aging treatment on the microstructure, mechanical properties and corrosion behavior of spray deposited Al-Mg-Li-Sc-Zr alloy [J].

Kuang, Quanbo ;

Wang, Richu ;

Peng, Chaoqun ;

Cai, Zhiyong ;

Feng, Yan ;

Wang, Xiaofeng .

JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 881

[44] Study of microstructural evolution, mechanical properties and plastic deformation behavior of Mg-Gd-Y-Zn-Zr alloy prepared by high-pressure torsion [J].

Xue, Kemin ;

Luo, Zhicheng ;

Xia, Shuangwu ;

Dong, Junfu ;

Li, Ping .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2024, 891

[45] Effect of severe plastic deformation by high-pressure torsion at different temperatures and subsequent annealing on structural and phase transformations in Zr-2.5% Nb alloy [J].

Rogachev, S. O. ;

Sundeev, R., V ;

Nikulin, S. A. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 865

[46] The influence of severe plastic deformation by high pressure torsion on structure and mechanical properties of Hadfield steel single crystals [J].

Zakharova, G. G. ;

Astafurova, E. G. .

15TH INTERNATIONAL CONFERENCE ON THE STRENGTH OF MATERIALS (ICSMA-15), 2010, 240

[47] Structure and mechanical properties of the Mg-Y-Gd-Zr alloy after high pressure torsion [J].

Dobatkin, S. V. ;

Rokhlin, L. L. ;

Lukyanova, E. A. ;

Murashkin, M. Yu ;

Dobatkina, T. V. ;

Tabachkova, N. Yu .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 667 :217-223

[48] The Structure and Mechanical Properties of an Al-1.8Mn-1.6Cu Alloy Subjected to Severe Plastic Deformation [J].

Petrova, A. N. ;

Astafiev, V. V. ;

Kuryshev, A. O. .

PHYSICS OF METALS AND METALLOGRAPHY, 2024, 125 (12) :1451-1456

[49] Effects of Aging on the Evolution of Microstructure and Mechanical Properties of an Al – Li – Cu – Mg Alloy with Ag, Zr, Mn, and Zn Additives [J].

Zhong-gang Sun ;

Peng-li Bao ;

Chao Ma ;

Jie Chen ;

Xuan Guo ;

Hua-guan Li ;

Juan Ling .

Metal Science and Heat Treatment, 2016, 57 :673-677

[50] The effect of high-pressure torsion process on the microstructure and mechanical properties of Al-Zn-Mg-Cu alloy [J].

Jian, Song ;

Feng, Dong ;

Xue, Kemin ;

Ding, Yonggen .

MATERIALS LETTERS, 2025, 387

← 1 2 3 4 5 →