动态测试材料用于化滚轴承,以提高性能
Giovanni Paolo Alparone1, James Sullivan1, Christopher Mills2
1Department of Materials Engineering, Swansea University, Swansea SA2 8PP, UK.
Materials (Basel, Switzerland)
|December 17, 2024
概括
在化合金中化卷轴承的腐蚀导致了大量的停机时间. 在Wallex6TM上的氧化 (Al2O3) 涂层在动态磨损测试中显示出最小的磨损和耐腐蚀性.
科学领域:
- 材料科学 材料科学 材料科学
- 部落学 (tribology) 是一个学科.
- 腐蚀工程 腐蚀工程
背景情况:
- 化卷轴承因融化 (Zn) 中的腐蚀而面临严重的退化.
- 这种腐蚀导致昂贵的维护停机时间,影响工业运营.
- 了解Zn-Al和Zn-Al-Mg合金中的材料相互作用对于改善轴承寿命至关重要.
研究的目的:
- 为了评估不同材料对在化Zn-Al和Zn-Al-Mg合金中的腐蚀和耐磨性.
- 确定材料组合,以尽量减少化环境中的降解.
- 评估WC-Co和Al2O3涂料对化金属攻击的保护能力.
主要方法:
- 动态磨损测试使用定制设备模拟化条件.
- 研究的材料对:Wallex6TM与WC-Co,不钢316L与Al2O3,以及收到的Wallex6TM和Wallex4TM合金.
- 分析腐蚀产物,金属间化合物形成和磨损痕迹,以确定磨损系数.
主要成果:
- 在 Zn 合金中,Al2O3 涂层表现出极好的不反应性,而 WC-Co 材料腐蚀,形成 Al-Co-Zn-Fe 间金属.
- 在Wallex6TM和Wallex4TM合金中经历了Co溶解和Zn/Al扩散,尽管Zn扩散在Zn-Al-Mg和Zn-Al中减少了60%左右.
- 在这两种合金中,最小的磨损损伤仅在Wallex6TM与Al2O3涂层相结合时才能实现.
结论:
- Al2O3涂层为化合金中的卷轴承提供了卓越的腐蚀和耐磨性.
- 含有 (Co) 的材料在这些环境中容易腐蚀和溶解.
- 优化材料选择,特别是使用Al2O3涂层组件,可以显著减少维护停机时间和成本.
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