Joint properties of dissimilar Al6061-T6 aluminum alloy/Ti-6%Al-4%V titanium alloy by gas tungsten arc welding assisted hybrid friction stir welding

被引：101
作者：
Bang, HanSur [1 ]
Bang, HeeSeon [1 ]
Song, HyunJong [2 ]
Joo, SungMin [3 ]
机构：
[1] Chosun Univ, Dept Naval Architecture & Ocean Engn, Kwangju 501759, South Korea
[2] Daewoo Shipbldg & Marine Engn Co Ltd, Qual Management Team, Geoje 656714, South Korea
[3] Res Inst Ind Sci & Technol, Plant R&D Div, Ulsan 683420, South Korea
来源：
MATERIALS & DESIGN | 2013年 / 51卷
关键词：
INTERLAYER GROWTH; STAINLESS-STEEL; HEAT-TREATMENT; AL; MICROSTRUCTURE; TI;
D O I：
10.1016/j.matdes.2013.04.057
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hybrid friction stir butt welding of Al6061-T6 aluminum alloy plate to Ti-6%Al-4%V titanium alloy plate with satisfactory acceptable joint strength was successfully achieved using preceding gas tungsten arc welding (GTAW) preheating heat source of the Ti alloy plate surface. Hybrid friction stir welding (HFSW) joints were welded completely without any unwelded zone resulting from smooth material flow by equally distributed temperature both in Al alloy side and Ti alloy side using GTAW assistance for preheating the Ti alloy plate unlike friction stir welding (FSW) joints. The ultimate tensile strength was approximately 91% in HFSW welds by that of the Al alloy base metal, which was 24% higher than that of FSW welds without GTAW under same welding condition. Notably, it was found that elongation in HFSW welds increased significantly compared with that of FSW welds, which resulted in improved joint strength. The ductile fracture was the main fracture mode in tensile test of HFSW welds. Crown Copyright (c) 2013 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：544 / 551
页数：8
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