工艺参数对微观结构的影响以及激光覆盖Ni60+30%WC涂层对Q235钢的性能
Shanshan Wang1, Wenqing Shi2,3, Cai Cheng1
1School of Electronics and Information Engineer, Guangdong Ocean University, Zhanjiang 524088, China.
Materials (Basel, Switzerland)
|November 25, 2023
概括
激光覆盖在Q235钢上产生了Ni60+30%WC复合涂层,显著提高了硬度和耐磨性. 最佳参数 (1600瓦激光功率,10毫米/秒扫描速度) 产生了优越的材料性能.
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?
- 机械工程 机械工程
背景情况:
- 激光覆盖提供了精确的表面修改与最小的基板变形.
- 基于 (Ni60) 和碳化 (WC) 的复合材料以耐磨性而闻名.
- Q235钢需要对要求高的应用进行表面增强.
研究的目的:
- 为了优化Q235钢上的Ni60+30%WC复合涂料的激光覆盖参数.
- 评估工艺参数对涂层微观结构和性能的影响.
- 为增强钢面的实际应用提供指导.
主要方法:
- 激光覆盖被用于在Q235钢上沉积Ni60+30%WC.
- 光学显微镜 (OM) 和扫描电子显微镜 (SEM) 分析了形态和微观结构.
- 通过X射线衍光测量 (XRD) 检查了元素分布.
- 微硬度测试,摩擦测试和3D形状测量评估了机械性能和耐磨性.
主要成果:
- 复合涂料表现出密集的微观结构和良好的金结合.
- 最佳参数 (1600瓦激光功率,10毫米/秒扫描速度) 产生了卓越的结果.
- 与基础材料相比,微硬度增加了四倍以上.
- 磨损量减少了50%以上,这表明耐磨性显著改善.
结论:
- 对于Q235钢上的Ni60+30%WC涂层,最优的激光覆盖参数是1600W的激光功率和10毫米/秒的扫描速度.
- 这些参数的结果是形成良好的,密集的涂层,硬度和耐磨性大大提高.
- 该研究为这些先进的复合涂料的工业应用提供了宝贵的理论指导.
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