不同镀液组分对化学沉积Ni-W-P合金层组织和性能的影响  

Effect of Different Bath Constituent on the Micro Structure and Properties of Electroless Deposition of Ni-W-P Alloys

作　　者：宗云[1] 郭荣新 何冰清[1] 刘宏[1] 

机构地区：[1]山东轻工业学院机械工程学院,山东济南250353 [2]淄博市新材料研究所,山东淄博255040

出　　处：《表面技术》2009年第6期9-12,共4页Surface Technology

基　　金：山东省自然科学基金资助项目(Y2006F40)

摘　　要：为了探索镀液组分对Ni-W-P合金镀层结构与性能的影响规律,寻求合适的镀液配比,为后续实验奠定基础,采用扫描电镜/能谱、X射线衍射以及金相分析等方法,研究了不同成分和结构的化学沉积Ni-W-P合金层,测量了不同成分沉积层的镀态与热处理后的硬度。结果表明:对于Ni-W-P合金镀层,镀液组分是决定镀层结构状态的关键因素。镀液中钨酸钠含量增加,次磷酸钠含量减少时,镀层结构将发生由非晶态→混晶态→纳米晶态的连续演变,其相应的镀态硬度与热处理后硬度也发生变化,这种变化与因成分改变导致的结构、晶化程度、W含量、Ni3P析出量与尺寸等因素的改变有关。In order to explore the influence of the bath composition on Ni-W-P alloy coating structure and prop- erties, to find the right ratio, so as to lay the foundation for follow-up experiments, SEM/EDS, X-ray diffraction, and metallographic analysis and other methods were adopted to study the composition and structure of different chemical deposition of Ni-W-P alloy. And the hardness of different components of the sediment layers plated state and the hardness after heat treatment were measured. The results show that ： For the Ni-W-P alloy, plating bath composition is the key factors to determine the coating structure. Bath sodium tungsten content is increased, sub-sodium content is decreased, the coat- ing structure will take place continuous evolution which from the amorphous→crystalline→mixed nano-crystalline state, its corresponding state-plated hardness and hardness after heat treatment ware different, this change is in connection with the change of composition which induces the changes of structure and degree of crystallization, W content, Ni3P precipitation quantity and size and other factors.

关 键 词：纳米晶 化学镀 Ni—W—P合金 非晶态合金 

分 类 号：TQ153.2[化学工程—电化学工业]