TY - GEN
T1 - Effects of laser processing parameters on grain boundary character distribution and corrosion resistance of austenite stainless steel
AU - Yang, Sen
AU - Kokawa, Hiroyuki
AU - Wang, Zhanjie
PY - 2007/1/1
Y1 - 2007/1/1
N2 - In order to modify grain boundary character distribution (GBCD) and to improve intergranualr corrosion (IGC) resistance of 304 stainless steel, laser surface remelting experiments were conducted on 304 stainless steel using a 2kW CW Nd: YAG laser, and the effects of laser processing parameters on GBCD and corrosion resistance were investigated in detail under the optimal annealing condition (1220K 28h). The experimental results showed that combination of laser surface remelting and the following annealing treatment could change the GBCD remarkably and improve the IGC resistance of 304 stainless steel. However, there are no obvious effects of laser processing parameters on the final depth of the processed zone, although the depth of the molten pool increases with the increase of the laser output power or the decrease of the scanning velocity, and the subsequent GBCD and corrosion resistance.
AB - In order to modify grain boundary character distribution (GBCD) and to improve intergranualr corrosion (IGC) resistance of 304 stainless steel, laser surface remelting experiments were conducted on 304 stainless steel using a 2kW CW Nd: YAG laser, and the effects of laser processing parameters on GBCD and corrosion resistance were investigated in detail under the optimal annealing condition (1220K 28h). The experimental results showed that combination of laser surface remelting and the following annealing treatment could change the GBCD remarkably and improve the IGC resistance of 304 stainless steel. However, there are no obvious effects of laser processing parameters on the final depth of the processed zone, although the depth of the molten pool increases with the increase of the laser output power or the decrease of the scanning velocity, and the subsequent GBCD and corrosion resistance.
KW - Austenite stainless steel
KW - Grain boundary engineering
KW - Laser surface remelting
UR - http://www.scopus.com/inward/record.url?scp=38349181086&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38349181086&partnerID=8YFLogxK
U2 - 10.4028/0-87849-462-6.2473
DO - 10.4028/0-87849-462-6.2473
M3 - Conference contribution
AN - SCOPUS:38349181086
SN - 0878494626
SN - 9780878494620
T3 - Materials Science Forum
SP - 2473
EP - 2476
BT - Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
PB - Trans Tech Publications Ltd
T2 - 6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
Y2 - 5 November 2007 through 9 November 2007
ER -