TY - JOUR
T1 - Grain boundary engineering of 304 austenitic stainless steel by laser surface melting and annealing
AU - Yang, Sen
AU - Wang, Zhan Jie
AU - Kokawa, Hiroyuki
AU - Sato, Yutaka S.
N1 - Funding Information:
Acknowledgements One of the authors (S. Yang) is grateful to Japan Society for the Promotion of Science for offering a JSPS fellowship. The authors would like to express their gratitude to Dr. Y. S. Kang, Mr. A. Honda and Mr. Isago for their technical support. The partial support of this work Program for New Century Excellent Talents in University from Ministry of Education of China and Science Foundation of IMUT are also acknowledged.
PY - 2007/2
Y1 - 2007/2
N2 - In order to improve the intergranular corrosion resistance of 304 stainless steel, laser surface remelting experiments were conducted using a 2kW continuous wave Nd: YAG laser. The grain boundary character distribution (GBCD) and microstructures of the materials were analyzed using EBSD, SEM and OM. The experimental results showed that combination of laser surface melting and annealing on 304 stainless steel resulted in a high frequency of twin boundaries and consequent discontinuity of random boundary network in the materials, which led to an improvement of resistance to intergranular corrosion. The maximum CSL density could reach 88.6% under optimal processing conditions: 1220K and 28h.
AB - In order to improve the intergranular corrosion resistance of 304 stainless steel, laser surface remelting experiments were conducted using a 2kW continuous wave Nd: YAG laser. The grain boundary character distribution (GBCD) and microstructures of the materials were analyzed using EBSD, SEM and OM. The experimental results showed that combination of laser surface melting and annealing on 304 stainless steel resulted in a high frequency of twin boundaries and consequent discontinuity of random boundary network in the materials, which led to an improvement of resistance to intergranular corrosion. The maximum CSL density could reach 88.6% under optimal processing conditions: 1220K and 28h.
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U2 - 10.1007/s10853-006-0063-2
DO - 10.1007/s10853-006-0063-2
M3 - Article
AN - SCOPUS:33847219639
SN - 0022-2461
VL - 42
SP - 847
EP - 853
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 3
ER -