Friction stir welding of 6 mm thick carbon steel underwater and in air

被引：21

作者：

Baillie, P. ^{[1
]}

Campbell, S. W. ^{[1
]}

Galloway, A. M. ^{[1
]}

Cater, S. R. ^{[2
]}

McPherson, N. A. ^{[1
]}

机构：

[1] Univ Strathclyde, Dept Mech & Aerosp Engn, Glasgow, Lanark, Scotland

[2] TWI Technol Ctr, Rotherham, Yorks, England

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2015年 / 20卷 / 07期

关键词：

Charpy impact toughness; Distortion; Fatigue; Friction stir welding; Microhardness; Underwater; MECHANICAL-PROPERTIES; ALUMINUM-ALLOY; MICROSTRUCTURE; SPEED; TOOL;

D O I：

10.1179/1362171815Y.0000000042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study compared the mechanical and microstructural properties produced during friction stir welding of S275 structural steel in air and underwater. Post-weld tests assessed the tensile strength, microhardness, distortion, Charpy impact toughness and fatigue performance in each case. The study showed that there was no significant difference in the strength, hardness or fatigue life of the air and underwater specimens. However, Charpy impact toughness was shown to decrease for the underwater specimens and was attributed to the presence of a slightly less angular grain structure than the samples welded in air. Reduced angular and longitudinal distortion was observed in the underwater welded plate compared to the plate welded in air.

引用

页码：585 / 593

页数：9

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