骆芳,胡夏夏,孔凡志,姚建华,柴国钟

• 1:浙江工业大学之江学院
• 2:浙江工业大学机械工程学院

摘要(Abstract)：

在P20塑料模具钢表面制备了Ni/nano-SiO2复合镀层并利用CO2激光器进行强化处理。所采用的激光输出功率为2.0~3.1kW,扫描速度为0.8~2m/min。对纳米复合镀层、纳米复合镀激光强化层的显微组织结构进行分析,并测试了其硬度和耐磨性。结果表明:通过高能量密度的激光处理,强化层组织结构为多面体纳米SiO2颗粒,且消除了镀层原有缺陷(如间隙、微裂纹),强化层硬度、耐磨性在纳米复合镀层的基础上进一步提高。

关键词(KeyWords)： 纳米复合镀;激光强化;显微硬度;耐磨性

Abstract:

Keywords:

基金项目(Foundation): 浙江省科技厅项目(2008C31G2020010);; 浙江省教育厅科研项目(20070305)

作者(Author): 骆芳,胡夏夏,孔凡志,姚建华,柴国钟

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