FRICTION STIR WELDING (FSW) OF A HARDENABLE ALLOY STEEL IN 'DRY' AND 'WET' ENVIRONMENTS

被引：0

作者：

Overfield, Norman ^{[1
]}

Mahoney, Murray W. ^{[1
]}

Steel, Russell ^{[1
]}

Babb, Jon ^{[1
]}

Menon, Sarath ^{[1
]}

McNelley, Terry R. ^{[1
]}

机构：

[1] Naval Postgrad Sch, Ctr Mat Sci & Engn, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA

来源：

FRICTION STIR WELDING AND PROCESSING VI | 2011年

关键词：

Hardenable steel; friction stir processing; underwater welding; HIGH-CARBON STEEL;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Recent advances in FSW tool material and design will facilitate numerous applications of this solid-state joining technology to steels. A single W-Re-CBN tool was used to conduct a series of bead-on-plate FSW traverses, approximately 1.5m in total length, on 6.3mm thick plates of a hardenable alloy steel. The first series of traverses involved various RPM/IPM combinations and a dry plate. A second series was carried out while a plate was immersed in water in order to assess potential for inducing hydrogen assisted cracking (HAC) during FSW of susceptible alloys. All traverses were defect-free. The FSW nuggets exhibited refined microstructures and increased hardness relative to the base plate. The influence of FSW parameters on nugget microstructure and mechanical properties will be summarized.

引用

页码：59 / 64

页数：6

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