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Influence of Ru on structure and corrosion behavior of passive film on Ti-6Al-4V alloy in oil and gas exploration conditions.
Liu, Qiang; Liu, Hongtao; Xie, Junfeng; Zhang, Wei-Fu; Zhang, Yi-Ming; Feng, Chun; Li, Guang-Shan; Yu, Yang; Song, Sheng-Yin; Yin, Cheng-Xian.
Afiliación
  • Liu Q; State Key Laboratory for Performance and Structural Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, No. 89, Jinye 2Nd Road, Xi'an, 710077, Shaanxi, China.
  • Liu H; Petroleum Engineering Institute, Tarim Oil Field Company of CNPC, Kuerle, 841000, Xinjiang, China.
  • Xie J; Petroleum Engineering Institute, Tarim Oil Field Company of CNPC, Kuerle, 841000, Xinjiang, China.
  • Zhang WF; State Key Laboratory for Performance and Structural Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, No. 89, Jinye 2Nd Road, Xi'an, 710077, Shaanxi, China.
  • Zhang YM; State Key Laboratory for Performance and Structural Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, No. 89, Jinye 2Nd Road, Xi'an, 710077, Shaanxi, China.
  • Feng C; School of Materials Science and Engineering, Xi'an University of Technology, No.5 Jinhua South Road, Xi'an, 710048, China.
  • Li GS; State Key Laboratory for Performance and Structural Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, No. 89, Jinye 2Nd Road, Xi'an, 710077, Shaanxi, China.
  • Yu Y; State Key Laboratory for Performance and Structural Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, No. 89, Jinye 2Nd Road, Xi'an, 710077, Shaanxi, China.
  • Song SY; State Key Lab of Nonferrous Metals and Processes, GRINMAT Engineering Institute Co, Ltd., No. 11, Xingke East Street, Beijing, 101400, China. yuyang@grinm.com.
  • Yin CX; State Key Laboratory for Performance and Structural Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, No. 89, Jinye 2Nd Road, Xi'an, 710077, Shaanxi, China.
Sci Rep ; 12(1): 16586, 2022 Oct 05.
Article en En | MEDLINE | ID: mdl-36198740
ABSTRACT
In order to investigate the influence of minor Ru on the electrochemical behaviour and structural characteristics of passive films on the surface of Ti-6Al-4V alloys under various oil and gas exploration conditions, electrochemical techniques, X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM) and corrosion simulation tests were carried out. The results revealed that the oil and gas exploration conditions had a serious impact on the electrochemical behaviour and corrosion resistance of the tested alloys. The passivation film resistance and corrosion potential of the tested titanium alloys were significantly reduced with increasing acidity and temperature. With the addition of minor ruthenium, the potential of the passive film on the Ti-6Al-4V-0.11Ru alloy surface increased because of the high surface potential of the ruthenium element. The contents of metallic ruthenium and tetravalent titanium oxide TiO2 in the surface film of the Ti-6Al-4V-0.11Ru alloy both increased with increasing temperature, which led to increase the thickness, stability, corrosion resistance and repairability of the passive film on the surface of the Ti-6Al-4V-0.11Ru alloy being better than those qualities of Ti-6Al-4V. These results were also confirmed by corrosion simulation tests.
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Texto completo: 1 Colección: 01-internacional Idioma: En Revista: Sci Rep Año: 2022 Tipo del documento: Article País de afiliación: China
Texto completo
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Texto completo: 1 Colección: 01-internacional Idioma: En Revista: Sci Rep Año: 2022 Tipo del documento: Article País de afiliación: China