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Updated: Jan 18, 2026

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Experimental Multiscale Methodology for Predicting Material Fouling Resistance
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化石墨 (FG) 添加对FG-Ni/WC/CeO2覆盖层在广泛的温度范围内摩擦性能的影响
Ouyang Li1, Guirong Yang1, Wenming Song2
1School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
Materials (Basel, Switzerland)
|September 13, 2025
概括
添加化石墨 (FG) 增强了钢上的Ni/WC/CeO2外,形成了一个自滑的CeF3相. 这提高了高温耐磨性和机械性能,适用于苛刻的应用.
科学领域:
- 材料科学 材料科学 材料科学
- 表面工程是什么?表面工程是什么?
- 部落学 (tribology) 是一个学科.
背景情况:
- 开发用于高温应用的先进涂层至关重要.
- 提高钢基板的机械性能和耐磨性对于工业用途至关重要.
- 了解添加剂在覆盖层形成中的作用是优化性能的关键.
研究的目的:
- 在45钢上制造化石墨 (FG) 增强的Ni/WC/CeO2覆盖层.
- 调查FG对微观结构,相组合,机械性能和25-800°C的tribological行为的影响.
- 为了确定最佳的FG内容以提高性能.
主要方法:
- 用真空覆盖技术制造了覆盖层.
- 进行了微结构分析,相组合表征,机械性质测试 (微硬度,H/E,H3/E2),以及在各种温度下进行的三极学测试.
- 系统地评估了不同FG重量百分比的影响.
主要成果:
- 最佳 CeF3 阶段形成发生在 1.5 wt% FG (NWF15) 时,导致最小的颗粒大小 (15.88 nm) 和最低的多孔度 (0.1410%).
- 该NWF15层表现出优异的微硬度 (1062.7 ± 21.9 HV0.2) 和优异的抗弹性应变和塑性变形 (H/E=0.0489,H3/E2=0.0291).
- 磨损机制从25°C的磨损过渡到粘合 (200-600°C) 和氧化 (800°C),CeF3始终减少磨损并提供滑.
结论:
- 添加化石墨有效地促进了Ni/WC/CeO2外中自滑CeF3相的形成.
- 优化的NWF15覆盖层表现出显著增强的机械性能和在广泛的温度范围内卓越的 Tribological 性能.
- 开发的外为高温耐磨应用提供了一个有前途的解决方案.
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