@inproceedings{5ef16bf81bef42998628e0d968ebf29f,
title = "Development of a cobalt-based alloy FSW tool for high-softening-temperature materials",
abstract = "The authors have developed a new friction stir welding (FSW) tool that enables welding of high-softening-temperature materials, such as steels, and titanium alloys. The new tool is made of a Co-based alloy strengthened by precipitating intermetallics, Co3(Al,W), with an Ll2 structure at high temperatures. The Co-based alloy tool can be manufactured at a low cost through a simple production method consisting of casting, heat-treatment, and then machining. It exhibits yield strengths higher than 500 MPa at 1000°C, so that it might have great potential as a FSW tool for high-softening- temperature materials. In this study, the feasibility to use the Co-based alloy tool to friction stir weld various high-softening-temperature materials was examined. Changes in tool shape during FSW and the weld appearances produced with the Co-based alloy tool will be briefly shown.",
keywords = "Co-based alloy, Friction stir welding, Steels, Ti alloys, Tool",
author = "Sato, {Yutaka S.} and Masahiro Miyake and Hiroyuki Kokawa and Toshihiro Omori and Kiyohito Ishida and Shinya Imano and Park, {Seung Hwan C.} and Satoshi Hirano",
year = "2011",
doi = "10.1002/9781118062302.ch1",
language = "English",
isbn = "9781118002018",
series = "TMS Annual Meeting",
publisher = "Minerals, Metals and Materials Society",
pages = "3--9",
booktitle = "Friction Stir Welding and Processing VI - Held During the TMS 2011 Annual Meeting and Exhibition",
}