Linear friction welding of Ti-6Al-4V alloy fabricated below β-phase transformation temperature

被引：46

作者：

Choi, Jeong-Won ^{[1
]}

Aoki, Yasuhiro ^{[1
]}

Ushioda, Kohsaku ^{[1
]}

Fujii, Hidetoshi ^{[1
]}

机构：

[1] Osaka Univ, Joining & Welding Res Inst, Osaka, Ibaraki 5670047, Japan

来源：

SCRIPTA MATERIALIA | 2021年 / 191卷

基金：

日本学术振兴会;

关键词：

Interfacial temperature; Microstructure; Mechanical properties; Linear friction welding (LFW); Ti alloys; MICROSTRUCTURE; BEHAVIOR;

D O I：

10.1016/j.scriptamat.2020.09.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The interfacial temperature, microstructure and hardness distribution of the linear friction welded Ti-6Al-4V joints obtained at different applied pressures were investigated. The sound Ti-6Al-4V alloy joints were successfully fabricated below the beta-phase transformation temperature. The increased pressure considerably decreased the welding temperature. The dynamically recrystallized ultra-fined alpha equiaxed grains of 0.2 mu m were formed in the weld center of the joint by applying pressure of 550 MPa. Moreover, the hardness of the weld center was higher than that of the base material without the softened region in thermo-mechanical affected zone, which suggests the improved mechanical properties of the joints. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd.

引用

页码：12 / 16

页数：5

共 28 条

[1] Linear Friction Stir Welding of Medium Carbon Steel at Low Temperature [J].

Aoki, Yasuhiro ;

Kuroiwa, Ryosuke ;

Fujii, Hidetoshi ;

Murayama, Gen ;

Yasuyama, Masanori .

ISIJ INTERNATIONAL, 2019, 59 (10) :1853-1859

[2]

Aranus C., 2019, ISIJ INT, V57, P162

[3] CHARACTERIZATION OF SOLID-PHASE WELDS BETWEEN TI-6A1-2SN-4ZR-2MO-0.1SI AND TI-13.5A1-21.5NB TITANIUM ALUMINIDE [J].

BAESLACK, WA ;

BRODERICK, TF ;

JUHAS, M ;

FRASER, HL .

MATERIALS CHARACTERIZATION, 1994, 33 (04) :357-367

[4]

BAESLACK WA, 1981, WELD J, V60, pS121

[5] Linear friction welding process simulation of Ti-6A1-4V alloy: a heat transfer analysis of the conditioning phase [J].

Bertrand, Samuel ;

Shahriari, Davood ;

Jahazi, Mohammad ;

Champliaud, Henri .

PROCEEDINGS OF THE 17TH INTERNATIONAL CONFERENCE ON METAL FORMING METAL FORMING 2018, 2018, 15 :1382-1390

[6] Mechanical evaluation of linear friction welds in titanium alloys through indentation experiments [J].

Weld. Int., 2007, 2 (125-129) :125-129

[7] Microstructural evolution of a Ti-6Al-4V alloy during thermomechanical processing [J].

Ding, R ;

Guo, Z ;

Wilson, A .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 327 (02) :233-245

[8] Formation of Widmanstatten ferrite at very high temperatures in the austenite phase field [J].

Grewal, Rupanjit ;

Aranas, Clodualdo, Jr. ;

Chadha, Kanwal ;

Shahriari, Davood ;

Jahazi, Mohammad ;

Jonas, John J. .

ACTA MATERIALIA, 2016, 109 :23-31

[9] Texture development in Ti-6Al-4V linear friction welds [J].

Karadge, M. ;

Preuss, M. ;

Lovell, C. ;

Withers, P. J. ;

Bray, S. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 459 (1-2) :182-191

[10] Low-temperature superplasticity of ultra-fine-grained Ti-6Al-4V processed by equal-channel angular pressing [J].

Ko, YG ;

Lee, CS ;

Shin, DH ;

Semiatin, SL .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (02) :381-391

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