Wei Xiujie,Chen Yuxiang,Yang Xuejia,et al.Effect of butynediol ethoxylate on Ni-Mn coating[J].Plating & Finishing,2024,(6):42-47.[doi:10.3969/j.issn.1001-3849.2024.06.006]
丁炔二醇乙氧基化合物对镍锰镀层的影响
- Title:
- Effect of butynediol ethoxylate on Ni-Mn coating
- 关键词:
- 镍锰镀层; 丁炔二醇乙氧基化合物; 直流电镀; 退火硬化
- Keywords:
- nickel manganese coating ; butynediol ethoxylate ; direct-current electroplating ; annealing hardening
- 分类号:
- TQ153.2
- 文献标志码:
- A
- 摘要:
- 为了获得平整的镍锰合金镀层，在瓦特型镀液中研究了糖精存在下丁炔二醇乙氧基化合物（ BEO ）对 Ni-Mn 镀层性能的影响规律。通过线性扫描伏安法探究了 BEO 对阴极极化的影响，并对电沉积 Ni-Mn 镀层的表面形貌、晶体结构和显微硬度进行了表征，讨论了 Ni-Mn 镀层结构和性能变化的可能机制。结果表明： BEO 的加入使阴极极化电位向更负的方向偏移，显著抑制金属离子的阴极还原反应，细化了晶粒，有助于获得平整、高显微硬度的镀层。对比经 300 ℃ 退火后 Ni-Mn 镀层的硬度和结构发现，从含 BEO 镀液中获得的镀层的晶粒粗化趋势较小，退火硬化更为明显。
- Abstract:
- ： In order to obtain a smooth Ni-Mn coating ， the effect of butynediol ethoxylate （ BEO ） on the performance of Ni-Mn coating was studied in a Watts-type plating solution with saccharin. The effect of BEO on cathodic polarization was investigated through linear scanning voltammetry ， and the surface morphology ， crystal structure and microhardness of the electrodeposited Ni-Mn coatings were characterized. The possible mechanisms of structure and performance changes of the electrodeposited Ni-Mn coatings were discussed. The results indicated that the addition of BEO shifted the cathodic polarization potential towards a more negative direction ， significantly inhibited the cathodic reduction reaction of metal ions ， which refined the grain size and favored the formation of a smooth and high microhardness coating. Comparing with the structure and microhardness of Ni-Mn coatings that annealed at 300 ℃ ， it was found that the grain coarsening trend of the coating obtained from the bath containing BEO was smaller ， and the annealing hardening was more obvious.
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备注/Memo
收稿日期： 2023-11-15 修回日期： 2023-12-28 作者简介： 韦秀洁（ 1998 —），女，硕士研究生， email ： weixiujie@cug.edu.cn * 通信作者： 潘秉锁， email ： diamondtools@cug.edu.cn 基金项目： 国家重点研发项目（ 2022YFB3706604 ）?/html>