姚怀,苌清华,王喜然.铝合金化学镀Ni-W-P三元合金组织及性能的研究[J].表面技术,2010,39(3):26-28,33.
YAO Huai,CHANG Qing-hua,WANG Xi-ran.Study on the Microstructure and Properties of Electroless Ni-W-P Plating on Aluminium Alloy[J].Surface Technology,2010,39(3):26-28,33 |
| 铝合金化学镀Ni-W-P三元合金组织及性能的研究 |
| Study on the Microstructure and Properties of Electroless Ni-W-P Plating on Aluminium Alloy |
| 投稿时间：2010-04-09 修订日期：2010-06-10 |
| DOI： |
| 中文关键词: 化学镀 Ni-W-P合金 组织结构 性能 |
| 英文关键词:electroless plating Ni-W-P alloy organization structure properties |
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| 中文摘要: |
| 在铝合金表面化学镀Ni-W-P三元合金,通过X射线衍射(XRD)、扫描电镜(SEM)、差热分析(DTA)等测试手段对镀层的形貌、成分、组织结构及性能进行了研究。结果表明:镀层完全覆盖基体,表面由胞状物组成,光亮均匀,颗粒平均直径约为7μm。镀态时,镀层硬度达到HV610左右,属于均一单相体系,有较高的耐腐蚀性;若在380℃进行热处理,镀层中有Ni和Ni3P晶体析出,硬度达到HV920左右。环境温度较高时,W的沉积可阻碍Ni3P的析出,延滞Ni合金的晶化过程,使得Ni-W-P镀层比Ni-P镀层具有更好的热稳定性。 |
| 英文摘要: |
| The ternary Ni-W-P alloy coatings were deposited by electroless plating on aluminium alloy. The microstructure, constituents, organization structure and properties of the coating were investigated using XRD, SEM and DAT. The results show that the substrate is covered of Ni-W-P plating completely, the surface is composed of uniform crystalline grains, brightness and uniformity, the diameter of grains is about 7μm, the hardness is reach to HV610, the coating is singlephase system and has better corrosion resistance. The crystallization of nickel as well as Ni3P begin to come into being and the maximum hardness of Ni-W-P plating is about HV920 when heated at 380℃ .When the ambient temperature is high, the deposition of W can prevent the precipitation of Ni3P and delay Ni alloy crystallization process, making Ni-W-P coatings than the Ni-P coatings has better thermal stability. |
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