TY - GEN
T1 - Tool wear and reactions in 304 stainless steel during friction stir welding
AU - Sato, Yutaka S.
AU - Muraguchi, Masahiro
AU - Kokawa, Hiroyuki
PY - 2011
Y1 - 2011
N2 - Four kinds of the welding tools made of PCBN, W, WC and Al 2O3 were applied to FSW of 304 stainless steel, and then the wear and reaction between the tool debris and the steel matrix were examined for each tool material. Severe tool damage was found in W, WC and Al 2O3 tools after FSW, while the PCBN tool was hardly worn. Formations of Cr-rich borides, ferrite phases containing the high W contents and Cr-rich carbides were found in the stir zones produced using PCBN, W and WC tools, respectively. It was suggested that formation of those phases could be expected by calculation using the thermochemical database.
AB - Four kinds of the welding tools made of PCBN, W, WC and Al 2O3 were applied to FSW of 304 stainless steel, and then the wear and reaction between the tool debris and the steel matrix were examined for each tool material. Severe tool damage was found in W, WC and Al 2O3 tools after FSW, while the PCBN tool was hardly worn. Formations of Cr-rich borides, ferrite phases containing the high W contents and Cr-rich carbides were found in the stir zones produced using PCBN, W and WC tools, respectively. It was suggested that formation of those phases could be expected by calculation using the thermochemical database.
KW - 304 stainless steel
KW - Friction stir welding
KW - Microstructure
KW - Reaction
KW - Tool wear
UR - http://www.scopus.com/inward/record.url?scp=79952548419&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952548419&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.675-677.731
DO - 10.4028/www.scientific.net/MSF.675-677.731
M3 - Conference contribution
AN - SCOPUS:79952548419
SN - 9783037850497
T3 - Materials Science Forum
SP - 731
EP - 734
BT - Advanced Material Science and Technology
PB - Trans Tech Publications Ltd
ER -