Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5456237 | Materials Science and Engineering: A | 2017 | 26 Pages |
Abstract
Friction stir welding (FSW) is a promising technique to join HSLA steels without the problems encountered during fusion based welding processes. In the present work, 3Â mm thick HSLA plates were successfully welded using FSW. A tool made of tungsten-rhenium alloy was used in this work. The relationship between microstructure and tensile strength was studied under various welding conditions i.e. change in traverse speed (57-97Â mm/min). The microstructure of the weld nugget revealed the presence of upper bainite and fine ferrite phases. The amount of upper bainite reduced with increase in traverse speed. EBSD images showed a reducing trend for grain size. The details of hardness, tensile strength and bending test were reported.
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Authors
R. Ramesh, I. Dinaharan, Ravi Kumar, E.T. Akinlabi,