Detrimental Effect of Surface Mechanical Grinding on Stress Corrosion Behavior of Monel 400 alloy in Hydrofluoric Acid Vapor

IF 1.1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Corrosion Pub Date : 2023-07-24 DOI:10.5006/4382

Dai Hailong, S. Shi, C. Guo, Xinfa Chen

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Abstract

Surface finish or integrity is always an important problem threatening the safety service of components. In this study, the stress corrosion cracking (SCC) initiation behavior of Monel 400 alloy with different surface working treatments (mechanical grinding (TD specimen and PD specimen) and electrolytic polishing (EP specimen)) in hydrofluoric acid (HF) vapor were compared by conducting slow strain rate test (SSRT) and constant loading test (CLT). Although SSRT can evaluate the enhancement effect of mechanical grinding on SCC susceptibility, it cannot quantify its contribution to the crack initiation stage. The CLT shows the cracking initiation rate of different specimens in order of: EP specimen

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表面机械磨削对蒙乃尔400合金在氢氟酸蒸气中应力腐蚀行为的不利影响

表面光洁度或完整性一直是威胁部件安全服务的一个重要问题。本研究通过慢应变速率试验（SSRT）和恒载试验（CLT）比较了不同表面处理（机械研磨（TD试样和PD试样）和电解抛光（EP试样））的蒙乃尔400合金在氢氟酸（HF）蒸汽中的应力腐蚀开裂（SCC）萌生行为。尽管SSRT可以评估机械研磨对SCC敏感性的增强作用，但它不能量化其对裂纹萌生阶段的贡献。CLT显示了不同试样的裂纹萌生速率，其顺序为：EP试样

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来源期刊

Corrosion MATERIALS SCIENCE, MULTIDISCIPLINARY-METALLURGY & METALLURGICAL ENGINEERING

CiteScore

2.80

自引率

12.50%

发文量

审稿时长

3 months

期刊介绍： CORROSION is the premier research journal featuring peer-reviewed technical articles from the world’s top researchers and provides a permanent record of progress in the science and technology of corrosion prevention and control. The scope of the journal includes the latest developments in areas of corrosion metallurgy, mechanisms, predictors, cracking (sulfide stress, stress corrosion, hydrogen-induced), passivation, and CO2 corrosion. 70+ years and over 7,100 peer-reviewed articles with advances in corrosion science and engineering have been published in CORROSION. The journal publishes seven article types – original articles, invited critical reviews, technical notes, corrosion communications fast-tracked for rapid publication, special research topic issues, research letters of yearly annual conference student poster sessions, and scientific investigations of field corrosion processes. CORROSION, the Journal of Science and Engineering, serves as an important communication platform for academics, researchers, technical libraries, and universities. Articles considered for CORROSION should have significant permanent value and should accomplish at least one of the following objectives: • Contribute awareness of corrosion phenomena, • Advance understanding of fundamental process, and/or • Further the knowledge of techniques and practices used to reduce corrosion.