用Cr3C2相增强的W-Cr涂层的制造工艺,微观结构和物理机械性能,通过激光加工在工具钢上生产
Dariusz Bartkowski1, Aneta Bartkowska2
1Institute of Materials Technology, Faculty of Mechanical Engineering, Poznan University of Technology, ul. Piotrowo 3, 61-138 Poznan, Poland.
Materials (Basel, Switzerland)
|July 14, 2023
概括
在钢的- (W-Cr) 和碳化 (Cr3C2) 涂层的激光加工提高了耐用性. 添加碳化显著提高了微硬度和耐磨性,与单独的W-Cr涂层相比,性能翻了一番.
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?
- 金工业是金工业的一个方面.
背景情况:
- 开发钢基板的耐用涂层对于工业应用至关重要.
- 激光处理提供了精确的表面修饰能力.
- - (W-Cr) 和碳化 (Cr3C2) 以其硬度和耐磨性而闻名.
研究的目的:
- 为了研究激光加工对W-Cr,W-Cr/Cr3C2和Cr3C2预涂料的影响,这些预涂料应用于钢.
- 优化生产参数,以提高涂层的耐用性.
- 为了评估所产生的涂料的微观结构,微硬度,耐磨性和耐腐蚀性.
主要方法:
- 在钢基板上激光加工粘贴形式的W-Cr,W-Cr/Cr3C2和Cr3C2预涂料.
- 使用3kW二极管激光器,功率可变 (600-1200W),扫描速度不变 (3米/分钟).
- 采用多个激光轨迹,60%的重叠,并随后分析涂层特性.
主要成果:
- 通过激光加工成功生产W-Cr/Cr3C2涂层.
- 在预涂层中增加碳化 (Cr3C2) 含量对微硬度和耐磨性产生了积极的影响.
- 微硬度在750-890 HV0.1之间,分别为25%和75%的Cr3C2.
- 与没有Cr3C2.2.的W-Cr涂层相比,耐磨性提高了两倍以上.
结论:
- 激光加工是一种可行的方法,可以在钢上制造耐用的W-Cr/Cr3C2涂层.
- 添加一个增强阶段,特别是碳化,显著提高了涂层性能.
- 优化的激光处理参数可以为苛刻的应用提供具有优越耐磨性和微硬度的涂层.
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