Title of article :
Grain boundary engineering of 304 austenitic stainless steel by laser surface melting and annealing
Author/Authors :
Sen Yang، نويسنده , , Zhan Jie Wang، نويسنده , , HIROYUKI KOKAWA، نويسنده , , Yutaka S. Sato، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2007
Pages :
7
From page :
847
To page :
853
Abstract :
In order to improve the intergranular corrosion resistance of 304 stainless steel, laser surface remelting experiments were conducted using a 2 kW 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: 1220 K and 28 h.
Journal title :
Journal of Materials Science
Serial Year :
2007
Journal title :
Journal of Materials Science
Record number :
832462
Link To Document :
بازگشت