高温磨损和腐蚀行为爆炸喷涂Fe基无形涂层的高温磨损和腐蚀行为
1School of Management Engineering, Jiangsu Urban and Rural Construction Vocational College, Changzhou, 213147, People's Republic of China.
Scientific reports
|November 26, 2024
概括
爆炸喷涂的FeCrMoCB无形涂层具有高无形含量 (84.6%) 和硬度 (900 HV0.5). 这些涂料在400°C时表现出最佳的耐磨性,优于其他温度的涂料.
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?
- 腐蚀科学 腐蚀科学
背景情况:
- 与晶体对应物相比,无形涂层提供了增强的性能.
- 爆炸喷涂是一种先进的技术,用于生产高性能涂料.
- 了解高温下基于Fe的无形涂层的行为对于工业应用至关重要.
研究的目的:
- 使用爆炸喷雾技术制备FeCrMoCB无形涂层.
- 为了研究涂层的微观结构,元素分布和微硬度.
- 在各种条件下评估耐磨性和电化学腐蚀性.
主要方法:
- 在FeCrMoCB合金的爆炸喷.
- 使用先进的显微镜技术进行微结构分析.
- 微硬度测试 (HV0.5) 进行.
- 在不同温度下进行磨损测试.
- 电化学腐蚀试验. 电化学腐蚀试验.
主要成果:
- 在爆炸喷涂的Fe基无形涂层中达到高无形含量 (84.6%).
- 测量了900 HV0.5.5的高涂层微硬度.
- 由于氧化,在400°C观察到最低的磨损率 (47 × 10^-6 mm3/N.m).
- 鉴定了600°C的涂层脆性和裂纹.
结论:
- 爆炸喷涂对于生产含有高形态含量的基于Fe的涂层是有效的.
- 涂层表现出极好的硬度和耐磨性,特别是在400°C.
- 温度显著影响无形涂层的磨损性能和结构完整性.
相关概念视频
Atomic Spectroscopy: Effects of Temperature
304
Atomization, converting samples into gas-phase atoms and ions, is essential for atomic spectroscopy. The flame temperature required for atomization affects the efficiency of the atomic spectroscopic methods by increasing the atomization efficiency and the relative population of the excited and ground states.
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
304
Atomic Absorption Spectroscopy: Atomization Methods
373
Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
373


