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某些加工技术对状石墨珠色灰色铁的化侵蚀的影响
Eduard Riemschneider1, Ion Mitelea1, Ilare Bordeașu2
1Department of Materials and Fabrication Engineering, Politehnica University Timisoara, Bulevardul Mihai Viteazul nr.1, 300222 Timisoara, Romania.
Materials (Basel, Switzerland)
|March 27, 2025
概括
表面修改增强了灰色铁的颜色.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 部落学 (tribology) 是一个学科.
背景情况:
- 灰色铁与状石墨是面临空洞侵蚀的部件中常见的.
- 它们对洞穴侵蚀的易感性限制了在恶劣环境中的应用.
- 表面修改提供了一种可行的策略,可以在不影响散装特性的情况下提高阻力.
研究的目的:
- 评估四种表面处理方法,以提高灰色铁的化侵蚀性.
- 为了比较不同技术加工技术对材料性能的有效性.
- 为了确定最佳的表面修改,以提高化下的耐用性.
主要方法:
- 使用振动装置进行洞穴侵蚀测试 (ASTM G32-2016).
- 用维克斯硬度测试仪进行表面硬度评估.
- 使用Mitutoyo设备进行表面粗度分析.
- 通过光学和扫描电子显微镜 (SEM) 进行微观结构和磨损机制分析.
主要成果:
- 在TIG局部表面再化过程中,洞穴侵蚀阻力表现出最显著的增强.
- 对比分析显示,四种测试方法的改善程度各不相同.
- 微观结构检查将表面修改与磨损行为相关联.
结论:
- 局部表面再化,特别是TIG,对于提高灰色铁的空洞化侵蚀阻力非常有效.
- 表面工程提供了一种具有成本效益的解决方案,用于在侵蚀条件下延长组件寿命.
- 了解微观结构的变化是优化用于 tribological 应用的表面处理的关键.
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