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Anticorrosion property of TC27 Titanium Alloys and Application Evaluation in Tubing

机译：TC27钛合金的防腐性能及管道应用评价

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In view of the combined effect of the load and the corrosive environment on the downhole tubing and the need for the selection of downhole tubing materials, the study on the pitting corrosion, crevice corrosion, erosion corrosion, high temperature and high pressure simulation of corrosion, galvanic corrosion, resistance to sulfide stress corrosion cracking SSC, resistance to hydrogen induced cracking, stress corrosion cracking test under simulated working conditions for TC27 titanium alloy was carried out. Furthermore, the corrosion performance was evaluated by the test results and evaluation standards such as GB/T 18590-2001, SY/T 7394-2017, GB/T 15748-2013. The results show that TC27 have excellent resistance to pitting corrosion, crevice corrosion and erosion corrosion under the corrosive environment of NaCl and H_2s. The alloy also has excellent corrosion resistance and crack resistance under high-intensity environments such as high temperature and high pressure, and has good overall performance, which can effectively meet the needs of anti-corrosion performance of downhole tubing materials in different corrosive environments.
机译：鉴于负荷和腐蚀环境对井下管的综合作用以及选择井下管材的选择，研究了蚀腐蚀，缝隙腐蚀，腐蚀腐蚀，高温高压模拟的研究，腐蚀，电流腐蚀，耐硫化物应力腐蚀裂解SSC，耐氢诱导的裂化，进行抗腐蚀裂解试验，对TC27钛合金的模拟工作条件下进行的应力腐蚀开裂试验。此外，通过测试结果和评估标准评估腐蚀性能，例如GB / T 18590-2001，SY / T 7394-2017，GB / T 15748-2013。结果表明，TC27在NaCl和H_2S的腐蚀环境下具有优异的蚀腐蚀，缝隙腐蚀和腐蚀腐蚀。该合金在高强度环境（如高压和高压）下，合金也具有优异的耐腐蚀性和抗裂性，具有良好的整体性能，可以有效满足不同腐蚀环境中井下管材料的防腐蚀性能的需求。

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