Development of friction stir welding of high strength steel sheet

被引：51

作者：

Matsushita, M. ^{[1
]}

Kitani, Y. ^{[1
]}

Ikeda, R. ^{[1
]}

Ono, M. ^{[2
]}

Fujii, H. ^{[3
]}

Chung, Y. -D. ^{[3
]}

机构：

[1] JFE Steel Corp, Steel Res Lab, Chuo Ku, Chiba 2600835, Japan

[2] JFE Technores Corp, Chuo Ku, China 2600835, Japan

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

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2011年 / 16卷 / 02期

关键词：

Friction stir welding; Advanced high strength steel; Automotive steel sheet; Defect; Microstructure; Mechanical property; 304L STAINLESS-STEEL; MECHANICAL-PROPERTIES; CARBON-STEELS; MICROSTRUCTURES; TRANSFORMATION; TEMPERATURE; ALLOY; ZONE;

D O I：

10.1179/1362171810Y.0000000026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For friction stir welding (FSW) of advanced high strength steel (AHSS) sheets with tensile strength grades between 590 and 1180 N mm(-2), the appropriate welding condition range and the influence of welding conditions on microstructures and mechanical properties of the welds were investigated. The appropriate welding conditions to avoid defects such as the incomplete consolidation at the bottom of the weld were obtained for the steel sheets up to 1180 N mm(-2) grade. The higher tool rotation speed evidently resulted in the larger volume fraction of martensite and higher hardness in the stir zone (SZ), attributed to an increase in the peak temperature of its thermal cycle. The tensile strength of the weld joint was as high as that of the base metal for the steels up to 980 N mm(-2) grade, but slightly lower than that of the base metal for the steel of 1180 N mm(-2) grade due to the heat affected zone (HAZ) softening.

引用

页码：181 / 187

页数：7

共 23 条

[21] Friction stir welding of ultrafine grained plain low-carbon steel formed by the martensite process [J].

Ueji, R ;

Fujii, H ;

Cui, L ;

Nishioka, A ;

Kunishige, K ;

Nogi, K .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 423 (1-2) :324-330

[22]

Yurioka N., 1987, Met. Constr, V19, p217R

[23]

Zhu XK, 2004, J MATER PROCESS TECH, V146, P263, DOI 10.1016/j.matprotec.2003.10.025

← 1 2 3 →