Affiliation: | 1. School of Material Science and Engineering, Xi''an University of Technology, Xi''an 710048, China;2. School of Material Science and Engineering, Chang''an University, Xi''an 710048, China;3. Changqing Downhole Technology Company, Chuanqing Drilling Engineering Co., Ltd., Xi''an 710021, China;4. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China |