Abstract
Titanium alloy has light weight, low young modulus, small coefficient of thermal expansion and good corrosion resistance properties. Especially for high corrosive hydrogen sulfide and carbon dioxide, titanium alloy shows excellent resistance. With the replacement of Ni based alloy with titanium alloy, titanium oil pipes have become one of the development directions of high temperature and high pressure wells. Recently, the titanium alloy tubing has been used in Yuanba gasfield, indicating that titanium alloy tubing has entered a practical stage in China. However, because of the low hardness, high friction factor, poor wear resistance, serious adhesive wear, the erosion of crude oil and the friction of the sucker rod have a great influence on the wear properties of the titanium alloy tubing. These deficiencies will become one of the main constraint factors for the development of titanium alloy oil tubes. In order to solving this problem, in the present paper we improved the tribological performance by means of ion nitriding on Ti80 alloy. The microstructure, surface morphology, hardness tester and wear resistance of the material were analyzes by means of XRD, SEM, Vickers hardness tester and wear and abrasion tester. The results showed that the tribological performance of Ti80 alloy oil tubes is improved by ion nitriding process.
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Acknowledgements
The authors thank the National Key R&D Program of China (2016YFB0301201) and International Science & Technology Cooperation Program of Shaanxi Province (2015KW-020) for the support of this work.
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Li, L., Mao, X., Hong, Q. (2018). Analysis of Friction and Wear Behavior of Vacuum Nitriding on Ti80 Titanium Alloy. In: Han, Y. (eds) High Performance Structural Materials. CMC 2017. Springer, Singapore. https://doi.org/10.1007/978-981-13-0104-9_49
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DOI: https://doi.org/10.1007/978-981-13-0104-9_49
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