Evaluation of Grain Refinement and Mechanical Property on Friction Stir Welded Inconel 600

被引：15

作者：

Song, Kuk Hyun ^{[1
]}

Fujii, Hidetoshi ^{[1
]}

Nakata, Kazuhiro ^{[1
]}

机构：

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

来源：

MATERIALS TRANSACTIONS | 2009年 / 50卷 / 04期

关键词：

electron back scattered diffraction; Inconel; 600; friction stir welding; dynamic recrystallization; microhardness; RECRYSTALLIZATION; MICROSTRUCTURE;

D O I：

10.2320/matertrans.MRA2008432

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To evaluate the dynamic recrystallization aspect and microstructures, electron back scattered diffraction (EBSD) analysis on friction stir welded Inconel 600 was employed. Friction stir welding (FSW) led to the dynamic recrystallization in all conditions as high angle grain boundaries were distributed More than 85% in fraction, with equiaxed grains, and the grain refinement was accelerated from average grain size of 19 pin in the base material to 3.4 mu m in the stir zone by increasing the welding speed. Also, it increased microhardness by more than 20%, compared to base material microhardness, and the effect of grain size on the microhardness in the stir zones was satisfied with Hall-Petch relationship. [doi: 10.2320/matertrans.MRA2008432]

引用

页码：832 / 836

页数：5

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