Ding Yao Shen Yuejun Fu Dingguo Liu Dingfu *.Effect of heat treatment on the coating properties of electrodeposited Ni-Co-P alloy[J].Plating & Finishing,2024,(8):25-29.[doi:10.3969/j.issn.1001-3849.2024.08.004]
热处理温度对电镀Ni-Co-P镀层的性能影响
- Title:
- Effect of heat treatment on the coating properties of electrodeposited Ni-Co-P alloy
- 关键词:
- 热处理; Ni-Co-P 镀层; 硬度; 耐蚀性
- Keywords:
- heat treatment ; Ni-Co-P coatings ; hardness ; corrosion resistance
- 分类号:
- TQ153.2
- 文献标志码:
- A
- 摘要:
- 热处理是常用的一种提高镀层性能的方法。本文采用了一种新型的电镀 Ni-Co-P 配方在黄铜片上制备了镀层，然后将制得的镀层在不同温度下进行热处理，并结合扫描电子显微镜、 X 射线衍射、维氏硬度计和电化学工作站对镀层表面形貌、组织结构、硬度及耐蚀性能进行了测试分析。结果表明，热处理使镀层逐渐由非晶态转化为晶态镀层，当热处理温度为 400 ℃ 时，镀层的表面平整、致密，无明显缺陷，镀层硬度从 475.4 HV 增加到最大值 662.5 HV ，腐蚀电位为 - 0.222 V ，腐蚀电流密度为 2.44×10 - 8 A·cm - 2 ，镀层性能达到最佳。
- Abstract:
- ： Heat treatment is a common method to improve the properties of coating. In this paper ， a new Ni-Co-P electroplating formula was used to prepare the coating on the brass plate ， and then the obtained coatings were heat treated at different temperatures. The surface morphology ， microstructure ， hardness and corrosion resistance of the coating were tested and analyzed by scanning electron microscopy ， X-ray diffraction ， vickers hardness tester and electrochemical workstation. The results show that the coating is gradually transformed from amorphous to crystalline by heat treatment. When the heat treatment temperature is 400 ℃ ， the surface of the coating is flat ， compact and without obvious defects. The hardness of the coating increases from 475.4 HV to 662.5 HV ， and the corrosion potential is - 0.222 V ， the corrosion current density is 2.44×10 - 8 A·cm - 2 and the coating performance is the best.
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备注/Memo
收稿日期： 2023-08-25 修回日期： 2023-10-13 作者简介： 丁耀（ 1997 ―），男，硕士，助理工程师，研究方向为材料表面处理， email ： 1940675886@qq.com * 通信作者： 刘定富， email ： liuxiao8989@163.com