温度对改性马氏体不锈钢钝化性能的影响

IF 1.5 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Engineering, Science and Technology Pub Date : 2022-12-07 DOI:10.1080/1478422X.2022.2153197

A. B. Radwan, A. M. Moussa, N. Al-Qahtani, R. Case, H. Castaneda, A. Abdullah, Muhsen A. M. El-Haddad, J. Bhadra, N. Al-Thani, Yuan Ding

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引用次数: 0

摘要

摘要使用电化学方法和点缺陷模型（PDM），在pH为3、温度高达150°C的环境中，使用CO2气体高达2.8MPa的高压灭菌器，研究了改性马氏体不锈钢（MMSS）在不同温度下的盐水溶液中表现出的钝化行为的极限和性质。结果表明，MMSS上的无源性以金属阳离子空位扩散率（D）为特征，这表明在75°C的温度下的无源性比在150°C的高温下更稳定。D的值用于描述在75°C的阈值温度下无源层之间的转变；其表现出最大的稳定性。与预钝化相比，在75°C下钝化的MMSS试样在25°C下进行的实验中表现出更高的钝化稳定性，这表明在75°C下经历的变化至少部分不可逆。

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Effect of the temperature on the passivity of the modified martensitic stainless steels

ABSTRACT The limits and nature of the passive behavior exhibited by modified martensitic stainless steels (MMSS) is studied in brine solutions at different temperatures using electrochemical methods and the point defect model (PDM), in an environment at pH is 3 and temperatures up to 150°C, using autoclaves with CO2 gas up to 2.8 MPa. The results show that passivity on the MMSS is characterized by the metal cation vacancy diffusivity (D) which indicates that the passivity up to temperatures of 75°C is more stable than at higher temperatures up to 150°C. The value of D is used to describe the transition between the passive layers at the threshold temperature of 75°C; at which exhibits the largest stability. MMSS specimens passivated at 75°C exhibit higher passivity stability in experiments performed at 25°C, when compared the pre passivation, suggesting that the change experienced at 75°C is at least partially irreversible.

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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.