TY - GEN
T1 - Friction-stir welding of high-softening-temperature materials using cobalt-based alloy tool
AU - Park, Seung Hwan C.
AU - Hirano, Satoshi
AU - Imano, Shinya
AU - Sato, Yutaka S.
AU - Kokawa, Hiroyuki
AU - Omori, Toshihiro
AU - Ishida, Kiyohito
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - The authors have developed a new friction-stir welding (FSW) tool that enables to weld high-softening-temperature materials (HSTMs), such as steels, titanium and zirconium alloys. The new tool is made of a Co-based heat-resistant alloy strengthened by precipitating intermetallics, Co3(Al,W), with a L12 structure at high temperatures. The Co-based alloy tool exhibits yield strengths higher than 500 MPa at 1000 deg C, so it might have a great potential as a tool material for FSW of HSTMs. In this study, the feasibility of using the Co-based alloy tool with various HSTMs was examined. Changes in the tool shape during FSW and the weld appearances produced with the Co-based alloy tool will be briefly shown.
AB - The authors have developed a new friction-stir welding (FSW) tool that enables to weld high-softening-temperature materials (HSTMs), such as steels, titanium and zirconium alloys. The new tool is made of a Co-based heat-resistant alloy strengthened by precipitating intermetallics, Co3(Al,W), with a L12 structure at high temperatures. The Co-based alloy tool exhibits yield strengths higher than 500 MPa at 1000 deg C, so it might have a great potential as a tool material for FSW of HSTMs. In this study, the feasibility of using the Co-based alloy tool with various HSTMs was examined. Changes in the tool shape during FSW and the weld appearances produced with the Co-based alloy tool will be briefly shown.
KW - Co-based alloy
KW - Friction stir welding
KW - Steel
KW - Ti alloy
KW - Tool
KW - Zr alloy
UR - http://www.scopus.com/inward/record.url?scp=84862961326&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84862961326&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.706-709.996
DO - 10.4028/www.scientific.net/MSF.706-709.996
M3 - Conference contribution
AN - SCOPUS:84862961326
SN - 9783037853030
T3 - Materials Science Forum
SP - 996
EP - 1001
BT - THERMEC 2011
PB - Trans Tech Publications Ltd
T2 - 7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
Y2 - 1 August 2011 through 5 August 2011
ER -