Mechanical properties and microstructural evaluation of AA1100 to AZ31 dissimilar friction stir welds

被引：62

作者：

Azizieh, M. ^{[1
]}

Alavijeh, A. Sadeghi ^{[2
]}

Abbasi, M. ^{[3
]}

Balak, Z. ^{[1
]}

Kim, H. S. ^{[4
]}

机构：

[1] Islamic Azad Univ, Ahvaz Branch, Dept Mat Sci & Engn, Ahvaz, Iran

[2] Simon Fraser Univ, Sch Mechatron Syst Engn, 250-13450 102 Ave, Surrey, BC V3T 0A3, Canada

[3] Korea Inst Sci & Technol, High Temp Energy Mat, Seoul 136791, South Korea

[4] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, South Korea

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2016年 / 170卷

基金：

新加坡国家研究基金会;

关键词：

Alloys; Welding; Mechanical properties; Microstructure; MAGNESIUM ALLOYS; ALUMINUM; AL; PARAMETERS; EVOLUTION; 2024-T3; GROWTH; JOINTS; ZONE; FLOW;

D O I：

10.1016/j.matchemphys.2015.12.046

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, microstructure and mechanical properties of dissimilar friction stir welds of AA1100 and AZ31 were investigated to understand the effects of rotational and travel speed as well as pin position. The tensile results of welded samples revealed that the sound welds were formed when the stirring pin deviated from the centreline to the AZ31 side. The X-ray diffraction shows that Al3Mg2 and Ah(12)Mg(17) intermetallics formation occurs in the stir zone during the welding process. High hardness of these intermetallic phases increased the hardness of the stir zone to 110 Hv. The best tensile results were obtained in the sample processed in the range of 28-32 (rev/mm) rotational to travel speed ratio. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：251 / 260

页数：10

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