| 摘要: |
| 通过基体化学腐蚀法去掉钢基体，利用高分辨扫描电镜（HRSEM）就钢基体激光离散淬火对初始镀铬层界面微裂纹形貌影响进行研究。结果表明：激光处理的裂纹宽度近似是原始基体的一半；在离散处理的钢基体上镀铬可以在原始基体上形成一条与激光扫描方向相一致的宽裂纹。 |
| 关键词: 镀铬层 激光淬火 基体化学腐蚀法 微裂纹 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金项目(50471087, 50531060) |
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| The Study of the Micro-crack Morphologies on the Initial Electroplated Chromium Layer by Substrate-chemically Etching Method |
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ZHANG Guo-xiang，LI Huai-xue，CHEN Guang-nan，ZHANG Kun，LUO Geng-xing1,2,3
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1. Surface Modification Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080;2. ShanDong University of Technology, Zibo Shandong 255000 China;3. Graduate School of the Chinese Academy of Sciences, Beijing 100080 China
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| Abstract: |
| The effect of laser-discrete-quenched steel substrate on micro-crack morphologies of initial electroplated chromium layer was investigated with high resolution scanning electron microscope (HRSEM) by substrate-chemically etching method. The results showed that the crack width after laser treatment is approximately one half of the original substrate. Chromium plating on the laser-discrete-quenched steel substrate can induce a wide crack on the substrate along the direction of laser scanning. |
| Key words: chromium plating laser quenching substrate-chemically etching method micro-crack |
