国外文献 > 1.轴承 > 3. 材料与制造 > 材料性能
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| 标 题： |
Accelerated Testing to Investigate Corrosion Mechanisms of Carburized and Carbonitrided Martensitic Stainless Steel for Aerospace Bearings in Harsh Environments
加速测试用于研究在恶劣环境中航空航天轴承用渗碳和氮化碳马氏体不锈钢的腐蚀机理 |
| 作 者： |
Kvryan, Armen
Carter, Nicholas A.
Trivedi, Hitesh K.
Hurley, Michael F. |
| 关键词： |
Corrosion [腐蚀]
surface modification [ 表面改性]
carburizing [ 渗碳]
nitriding [ 氮化]
ferrous alloys [ 铁合金]
steel [ 钢]
oxides [ 氧化物]
carbides [ 碳化物]
rolling bearings [ 滚动轴承]
gas [ 气体]
jet turbines [ 喷气式涡轮]
metallurgical analysis [ 冶金分析]
corrosive wear [ 腐蚀性磨损]
oxidative wear [ 氧化磨损]
wear mechanism [ 穿戴机构] |
| 出版年： |
2020 |
| 期刊名： |
Tribology Transactions
摩擦学 Transactions |
| 年卷期： |
2020, vol.63, no.2 |
| 摘 要： |
Carburizable martensitic stainless steels (MSSs) are attractive candidates for bearings due to their high corrosion resistance, high hardness, and high temperature performance. Wear performance in tribocorrosion applications is strongly influenced by the surrounding environment. Electrochemical testing was used to evaluate three different surface treatments on AMS 5930 steel developed for advanced gas turbine engine bearing applications: low temperature (LTT), high temperature (HTT), and carbonitrided (CN). HTT had a higher corrosion rate that increased with time, whereas LTT and CN had lower corrosion rates that were stable over time. Accelerated testing revealed that surface treatment significantly influenced how corrosion propagated: HTT was more uniform; conversely, LTT and CN showed localized attack. Degradation mechanisms developed from electrochemical methods provide rapid insight into long-term wear behavior.
可渗碳马氏体不锈钢（MSSs）因其优异的耐腐蚀性、高硬度和高温性能，成为轴承的理想候选材料。在摩擦腐蚀应用中，磨损性能受到周围环境的显著影响。本研究采用电化学测试方法，评估了三种不同表面处理工艺对专为先进燃气轮机发动机轴承应用而开发的AMS 5930钢的影响：低温（LTT）、高温（HTT）以及碳氮化处理（CN）。其中，HTT的腐蚀速率较高且随时间持续上升； 而LTT和CN的腐蚀速率较低，且随时间保持稳定。加速试验表明，表面处理方式显著影响腐蚀的传播特性：HTT的腐蚀分布更为均匀。相反，LTT和CN表现出局部侵蚀。通过电化学方法获得的降解机制，可快速揭示长期磨损行为。 |
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