1. State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials , CNPC Tubular Goods Research Institute , Xi’an , Shaanxi 710077 , China
2. Northwestern Polytechnical University , Xi’an , Shaanxi 710072 , China
3. Xi’an Dexincheng Technology Co., Ltd. , Xi’an , Shaanxi 710065 , China