Evolution of wetted and corroded areas on 8Cr4Mo4V bearing steel exposed to salt water contaminated lubricant oil

被引：1
|
作者：
He, Wanjun [1 ]
Zeng, Qunfeng [1 ]
Xiao, Qi [2 ]
Pang, Zeming [1 ]
Wu, Yang [3 ]
Yan, Chao [4 ]
Huang, Shan [2 ]
Zhuang, Jian [1 ]
Wang, Jiahe [1 ]
Li, Haolin [1 ]
Wei, Xunkai [5 ]
机构：
[1] Xi An Jiao Tong Univ, Inst Design Sci & Basic Components, Sch Mech Engn, Xian 710049, Peoples R China
[2] Nanning Normal Univ, Coll Chem & Mat, Nanning 530001, Peoples R China
[3] Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
[4] North Univ China, Shanxi Prov Key Lab Adv Mfg Technol, Taiyuan 030051, Peoples R China
[5] Beijing Aeronaut Engn Tech Res Ctr, Beijing 100076, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 241卷
基金：
中国国家自然科学基金;
关键词：
8Cr4Mo4V bearing steel; Salt water contaminated lubricant oil; Monte Carlo simulation; Wetted and corroded areas; Time-dependent distribution; CORROSION BEHAVIOR; M50; STEEL; IN-SITU; FILIFORM CORROSION; CARBON STEEL; RAMAN; IRON; MICROSTRUCTURE; IDENTIFICATION; SPECTROSCOPY;
D O I：
10.1016/j.corsci.2024.112515
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Relationship between wetted and corroded areas on 8Cr4Mo4V bearing steel during exposure to salt water contaminated lubricant oil was explored by Monte Carlo simulation and corrosion experiment. Results show that locally corroded areas are initially scattered then connected and eventually merged due to droplet coalescence, and are resulted from galvanic, uniform and filiform corrosions, respectively. Droplet coalescence also redistributes wetted areas and activates de-wetting which interrupts transformation towards corrosion. Role of droplet coalescence in evolution of corroded areas is addressed. Combining two Monte Carlo models varied with droplet relaxation helps to predict the corroded areas' distribution after long-term exposure.
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页数：21
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