[1
]National innovation center of high speed train (Qingdao) Qingdao 266108 P. R China
[2
]College of Materials Science and Engineering Chongqing University Chongqing 400044
P. R China
[3
]National innovation (Qingdao) high speed train material research institute Co. LTD.
Qingdao 266109 P. R China