Influence of water cooling on microstructure and mechanical properties of friction stir welded 2014Al-T6 joints

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	Influence of water cooling on microstructure and mechanical properties of friction stir welded 2014Al-T6 joints
	Z. Zhang; B. L. Xiao; Z. Y. Ma
	2014
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	614 页码:6-15
摘要	6 mm thick 2014Al-T6 alloy plates were friction stir welded under both normal air cooling (AC) and submerged water cooling (WC) conditions at welding speeds of 100-800 mm/min and a constant rotational rate of 800 rpm. While sound FSW joints could be produced under the investigated welding speeds of 100-800 mm/min for the AC condition, defect-free joint was only obtained under the low welding speed of 100 mm/min and higher welding speeds of 400-800 mm/mm led to void defects or breakdown of welding tools for the WC condition. The FSW thermal cycle resulted in the formation of a low hardness zone (LHZ) on both retreating side and advancing side of the FSW 2014Al-T6 joints for both welding conditions. The LHZs were located at the heat affected zone and the thermo-mechanically affected zone adjacent to the nugget zone for the AC and WC joints, respectively. The tensile strength of the AC joints increased as the welding speed increased from 100 to 800 mm/min. Water cooling did not enhance the hardness of LHZs and tensile strength of FSW 2014Al-T6 joints. (C) 2014 Elsevier B.V. All rights reserved.
部门归属	[zhang, z. ; xiao, b. l. ; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; ma, zy (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; zyma@imr.ac.cn
关键词	Aluminum Alloys Fiction Stir Welding Water Cooling Microstructure Mechanical Properties Aluminum-alloy Welding Parameters Tensile Properties Fracture-behavior Butt Joints Hardness Zone Flow Tool
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73508
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. Zhang,B. L. Xiao,Z. Y. Ma. Influence of water cooling on microstructure and mechanical properties of friction stir welded 2014Al-T6 joints[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2014,614:6-15.
APA	Z. Zhang,B. L. Xiao,&Z. Y. Ma.(2014).Influence of water cooling on microstructure and mechanical properties of friction stir welded 2014Al-T6 joints.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,614,6-15.
MLA	Z. Zhang,et al."Influence of water cooling on microstructure and mechanical properties of friction stir welded 2014Al-T6 joints".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 614(2014):6-15.