高强度钢在硫硫酸盐溶液中的氢脆

IF 1.5 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Corrosion Engineering, Science and Technology Pub Date : 2023-03-02 DOI:10.1080/1478422X.2023.2183551

J. S. Sa, J. C. Rocha, A. Bueno, J. Gomes

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引用次数: 0

摘要

采用改良的NACE TM-0177溶液，用10-3M NaS2O3代替饱和H2S标准溶液，通过慢应变速率试验评价了超马氏体不锈钢(S13Cr)、马氏体-铁素体不锈钢(17Cr)、碳钢(P110)和奥氏体-铁素体不锈钢(2205和2507)对氢脆的敏感性。测试在25°C, pH 2.7和恒流极化下进行，阴极充电为10 mA/cm2。S13Cr、17Cr、P110和2507钢易受硫代硫酸盐氢脆的影响，其中S13Cr和17Cr对这一机制最敏感，而2205钢没有延性损失的迹象。这种有害影响归因于硫代硫酸盐产生的硫化氢。

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Hydrogen embrittlement of high-strength steels in thiosulphate solutions

ABSTRACT The susceptibility to hydrogen embrittlement of supermartensitic stainless steel (S13Cr), martensitic-ferritic stainless steel (17Cr), carbon steel (P110) and austenitic-ferritic stainless steels (2205 and 2507) was evaluated by slow strain rate tests using a modified NACE TM-0177 solution, with 10–3M NaS2O3 substituting the saturated H2S standard solution. Tests were conducted at 25°C, pH 2.7 and under galvanostatic polarisation with a cathodic charging of 10 mA/cm2. S13Cr, 17Cr, P110 and 2507 steels were susceptible to hydrogen embrittlement inthiosulphate, with S13Cr and 17Cr being the most sensitive to this mechanism, while 2205 showed no sign of ductility loss. This harmful effect was attributed to the hydrogen sulphide generated from thiosulphate.

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来源期刊

Corrosion Engineering, Science and Technology 工程技术-材料科学：综合

CiteScore

3.20

自引率

5.60%

发文量

审稿时长

3.4 months

期刊介绍： Corrosion Engineering, Science and Technology provides broad international coverage of research and practice in corrosion processes and corrosion control. Peer-reviewed contributions address all aspects of corrosion engineering and corrosion science; there is strong emphasis on effective design and materials selection to combat corrosion and the journal carries failure case studies to further knowledge in these areas.