A novel method for simultaneously improving the strength and ductility of AZ31 friction stir welded joint

被引：2

作者：

Zhang, Junlei ^{[1
]}

Tao, Shengli ^{[1
]}

Chen, Xiang ^{[2
,4
]}

Li, Zulai ^{[1
]}

Wang, Weizhang ^{[3
]}

Huang, Guangsheng ^{[3
]}

机构：

[1] Kunming Univ Sci & Technol, Coll Mat Sci & Engn, Kunming 650093, Peoples R China

[2] Hubei Univ Automot Technol, Coll Mat Sci & Engn, Shiyan 442002, Peoples R China

[3] Chongqing Univ, Coll Mat Sci & Engn, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China

[4] Hubei Univ Automot Technol, Shiyan Key Lab Adv Automot Aluminum Alloy, Shiyan, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 32卷

基金：

中国国家自然科学基金;

关键词：

AZ31; alloy; Friction stir welding; Localized selective remelting; Strain localization; Strength and ductility; MECHANICAL-PROPERTIES; MG ALLOY; FRACTURE-BEHAVIOR; MICROSTRUCTURE; TEXTURE; ZK60; IMPROVEMENT; EVOLUTION;

D O I：

10.1016/j.jmrt.2024.08.088

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, a novel localized selective remelting technique was proposed to treat the welding interface regions on the top and bottom surfaces of the AZ31 friction stir welded joint. Compared with the untreated joint, the treated joint achieved a favorable combination of strength (ultimate tensile strength of 238 MPa) and ductility (elongation of 13.3%). Digital image correlation (DIC) characterization revealed that the high strain-hardening ability primarily stemmed from the substantial mitigation of strain localization, which was caused by a comprehensive factor, including reduced SF value fluctuation between weld micro-zones, low residual dislocation density, and numerous extension twinning activation in the nugget zone.

引用

页码：2326 / 2333

页数：8

共 30 条

[1] Research progress of heterogeneous structure magnesium alloys: A review [J].

Chen, Xiang ;

Zhang, Junlei ;

Wang, Min ;

Wang, Weizhang ;

Zhao, Di ;

Huang, Haiming ;

Zhao, Qi ;

Xu, Xiaofei ;

Zhang, Hongxia ;

Huang, Guangsheng .

JOURNAL OF MAGNESIUM AND ALLOYS, 2024, 12 (06) :2147-2181

[2] Microstructure and mechanical behavior of similar butt-joints of ZK60 and ZK60-1.5RE magnesium alloys produced by linear friction stir welding [J].

da Silva, Erenilton Pereira ;

Buzolin, Ricardo Henrique ;

Alfaro, Ulises ;

Requena, Guillermo ;

Pinto, Haroldo Calvalcanti .

JOURNAL OF MAGNESIUM AND ALLOYS, 2021, 9 (05) :1782-1796

[3] Influence of boron on microstructure and mechanical properties of Gleeble simulated heat-affected zone in P91 steel [J].

Khajuria, Akhil ;

Akhtar, Modassir ;

Bedi, Raman ;

Kumar, Rajneesh ;

Ghosh, Mainak ;

Das, C. R. ;

Albert, Shaju K. .

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2020, 188

[4] Microstructural investigations on simulated intercritical heat-affected zone of boron modified P91-steel [J].

Khajuria, Akhil ;

Akhtar, Modassir ;

Bedi, Raman ;

Kumar, Rajneesh ;

Ghosh, Mainak ;

Das, C. R. ;

Albert, Shaju K. .

MATERIALS SCIENCE AND TECHNOLOGY, 2020, 36 (13) :1407-1418

[5] Mechanical strength and corrosion resistance of Al-additive friction stir welded AZ31B joints [J].

Kim, Jae-Yeon ;

Kim, Eun-Woo ;

Kim, Dong-O ;

Ju, Eun-Kyo ;

Lee, Ji-Eun ;

Lee, Jaeheon ;

Byeon, Jai -Won .

JOURNAL OF MAGNESIUM AND ALLOYS, 2023, 11 (05) :1519-1535

[6] Improvement of yield stress of friction-stirred Mg-Al-Zn alloys by subsequent compression [J].

Lee, C. J. ;

Huang, J. C. ;

Du, X. H. .

SCRIPTA MATERIALIA, 2007, 56 (10) :875-878

[7] Macrostructure, microstructure and mechanical properties of bobbin tool friction stir welded ZK60 Mg alloy joints [J].

Li, Gaohui ;

Zhou, Li ;

Zhang, Junfeng ;

Luo, Sanfeng ;

Guo, Ning .

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2020, 9 (04) :9348-9361

[8] Effect of textural variation and twinning activity on fracture behavior of friction stir welded AZ31 Mg alloy in bending tests [J].

Liu, Dejia ;

Xin, Renlong ;

Zhao, Longzhi ;

Hu, Yong .

JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 693 :808-815

[9] Enhanced strength and ductility AZ91 alloy with heterogeneous lamella structure prepared by pre-aging and low-temperature extrusion [J].

Liu, Shuaishuai ;

Wang, Weizhang ;

Chen, Xiang ;

Huang, Guangsheng ;

Liu, Han ;

Tang, Aitao ;

Jiang, Bin ;

Pan, Fusheng .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2021, 812

[10] Improvement in the strength of friction-stir-welded ZK60 alloys via post weld compression and aging treatment [J].

Liu, Zhe ;

Xin, Renlong ;

Wu, Xia ;

Liu, Dejia ;

Liu, Qing .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 712 :493-501

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