Microstructure and Mechanical Properties of Friction Stir Spot Welded Galvanized Steel

被引：35

作者：

Baek, Seung-Wook ^{[1
]}

Choi, Don-Hyun ^{[1
]}

Lee, Chang-Yong ^{[2
]}

Ahn, Byung-Wook ^{[1
]}

Yeon, Yun-Mo ^{[3
]}

Song, Keun ^{[3
]}

Jung, Seung-Boo ^{[1
,2
]}

机构：

[1] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 440746, Gyeonggi Do, South Korea

[2] Hyundai Steel, Tech Res Ctr, Automot Applicat Res Team, Dangjin 343823, Chungchungnam D, South Korea

[3] Suwon Sci Coll, Dept Adv Mat Applicat, Hwasung 445742, Gyeonggi Do, South Korea

来源：

MATERIALS TRANSACTIONS | 2010年 / 51卷 / 05期

关键词：

friction stir spot welding; galvanized steel; WC-Co alloy tool; explosion; tensile shear strength; RESISTANCE; FATIGUE; TOOL;

D O I：

10.2320/matertrans.M2009337

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Joints of galvanized steel were obtained by friction stir spot welding (FSSW) with lap configuration using CPS design tool. No mechanically mixed layer was formed between the top and bottom plates at the weld nugget due to the limited tool penetration and the lower pin height of the welding tool than the steel plate thickness. A deformed region, in which ZnO particles were detected, was observed in the joint. The formation of this deformed region was attributed to the explosion of the Zn coating layer due to friction heating and tool compression. With increasing tool penetration depth, the tensile shear strength of the joint increased to a maximum value of 3.07 kN at a tool penetration depth of 0.52 mm. [doi:10.2320/matertrans.M2009337]

引用

页码：1044 / 1050

页数：7

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