Evaluation of microstructures and mechanical properties of friction stir welded lap joints of Inconel 600/SS 400

被引：23

作者：

Song, K. H. ^{[1
]}

Kim, W. Y. ^{[1
]}

Nakata, K. ^{[2
]}

机构：

[1] Korea Inst Ind Technol, Inchon 406840, South Korea

[2] Joining & Welding Res Inst, Ibaraki, Osaka 5670047, Japan

来源：

MATERIALS & DESIGN | 2012年 / 35卷

基金：

日本学术振兴会;

关键词：

Non-ferrous metals and alloys; Welding; Mechanical; CORROSION; ALUMINUM; ALLOY;

D O I：

10.1016/j.matdes.2011.09.054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructures and mechanical properties of friction stir welded Inconel 600 and SS 400 lap joints were evaluated in this study. Friction stir welding was carried out at a tool rotation speed of 200 rpm and a welding speed of 100 mm/min. Application of friction stir welding was notably effective in reducing the grain size of the stir zone, as a result, the average grain size of Inconel 600 was reduced from 20 mu m in the base material to 8.5 mu m in the stir zone. The joint interface between Inconel 600 and SS 400 was soundly welded without voids and cracks, and MC carbides with a size of 50 nm were partially formed in the region of the lap joint interface in Inconel 600. In addition, a hook from SS 400 was formed on the advancing side of the Inconel 600 alloy, which directly affected an increase in the peel strength of the weld. In this study, we systematically discussed the effect of friction stir welding on the evolution of the microstructures and mechanical properties of friction stir lap jointed Inconel 600 and SS 400. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：126 / 132

页数：7

共 17 条

[1] Microstructural and mechanical properties of friction stir welded aluminum/copper lap joints [J].