financial support by the National Natural Science Foundation of China (No.51474203);Key Research Program of the Chinese Academy of Sciences (No.KGZD-EW-XXX-2)
The distribution of boron and the microstructure of grain boundary(GB) precipitates(M23(C,B) 6 and M 2B)have been analyzed with their effects on the susceptibility of ductility-dip-cracking(DDC) and tensile pr...