电刷镀Ni—P合金的研究

研究了电刷镀Ｎｉ－Ｐ合金镀层的制备工艺，检验服镀层的耐蚀性和硬度等性能。结果表明Ｎｉ－Ｐ合金镀层具有优良的耐蚀性，并成功地获得了耐磨复合镀层。     

Ni—Fe—P,Ni—W—P合金与镀层性能

本文通过研究非晶态Ｎｉ－Ｐ合金电镀体系加入少量Ｆｅ、Ｗ等元素对镀层性能的影响,发现非晶态Ｎｉ－Ｐ合金镀层中引入少量Ｆｅ、Ｗ元素后既能保持镀层优良的耐蚀性又可大大提高镀层的硬度和耐磨性。     

化学镀Ni—W—P合金工艺研究

研究镀液组成及工艺参数对镀层成分和沉积速率以及合金镀层表面形貌、结构、成分及硬度的影响。结果表明,添加剂的加入能显著地抑制镀液的自发分解。Ni-W-P 合金具有优异的耐蚀性。     

化学镀—Ni—P—PTFE层的硫化气氛中耐蚀性的研究

化学镀Ｎｉ－Ｐ－ＰＴＦＥ层常用于一些特定的场合。为提高其耐蚀性，使其能应用于特殊的腐蚀环境。采用了以Ｎｉ－Ｐ合金层为底层，Ｎｉ－Ｐ－ＰＴＦＥ层为面层的双层组合。研究了镀层在模拟硫化气氛中的耐蚀性及热自理对镀层耐蚀性的影响。结果表明：Ｎｉ－Ｐ合金层采用此双层组合镀层能满足耐硫化气氛腐蚀的要求。此外，热处理对镀层耐蚀性有不利影响，故不宜对镀层进行热处理。     

添加稀土铈对化学镀Ni—P镀层耐蚀性的影响

研究了在相同基础镀液实验条件下,添加稀土铈后所获得的镀层在盐酸,硫酸及氯化钠介质中的耐蚀性,通过扫描电镜对镀层表面腐蚀形态进行观察和失重实验,结果表明镀液中添中铈离子后镀层耐蚀性增强。     

铝合金化学镀Ni—P合金工艺的研究

通过正交实验研究了柠檬酸钠、甘氨酸、硫酸铈和丙炔醇等对合金镀层沉积速率的影响,并对镀层的表面形貌、结合强度以及耐蚀性等方面进行了考察.结果表明:这四种物质的适量加入,提高了铝合金表面Ni-P合金镀层的沉积速率,改善了镀层的表面质量.通过正交实验确定了合适的工艺条件.根据该工艺制备的Ni-P镀层具有良好的表面质量、较高的结合强度,提高了铝合金的耐蚀性.     

化学镀Ni－P合金层耐蚀性能的研究

通过中性盐雾试验、极化曲线测验、Ｘ射线衍射和扫描电镜等手段研究了影响化学镀Ｎｉ－Ｐ合金镀层耐蚀性能的各种因素。认为镀层的含磷量随镀液中次磷酸钠浓度、络合剂浓度或镀液温度的增高而提高，但随镀液ｐＨ值的增高而减低。而含磷量较高的镀层具有较高的耐蚀性能。研究还表明，镀件在化学镀前经过抛光处理会有助于提高镀层的耐蚀性。而镀后在高温度下的热处理，则会使镀层的耐蚀性变差。     

化学镀Ni—Sn—P合金镀层耐蚀性的研究（II）

研究了化学镀Ｎｉ－Ｓｎ－Ｐ合金镀层的耐蚀性，并同高磷Ｎｉ－Ｐ合金（１１．９ｗｔ％Ｐ）镀层进行了比较。结果表明：Ｎｉ－Ｓｎ－Ｐ合金镀层孔隙率低，在酸性、中性和碱性介质中的耐蚀性优于Ｎｉ－Ｐ合金镀层。     

非晶态Ni—P合金电镀层耐蚀性的研究

用极化曲线测试法，交流阻抗法以及失重法等手段研究了Ｎｉ－Ｐ非晶态合金在酸，碱，盐体系中的耐蚀性。结果表明，Ｎｉ－Ｐ非晶态电镀层耐蚀性较纯镍镀层要好的多。     

Ni—Fe—P化学镀层的组织结构及耐蚀性研究

采用SEM、XRD、能谱等现代测试方法，对Ni—Fe—P化学镀层的组织结构和成分进行了研究；利用失重法和电化学测试方法研究了Ni-Fe—P镀层的耐蚀性及耐蚀机理。实验结果表明，该Ni—Fe—P镀层具有非晶态结构和良好的耐蚀性能。     

化学镀Ni-P合金耐蚀性的影响因素

论述了镀液成份、磷含量、基材表面状态、前处理和后处理工艺及外加磁场等因素对化学镀ＮｉＰ合金耐蚀性的影响。     

Corrosion resistance of ternary NiP based alloys in sulfuric acid solutions

NiP based alloy films were prepared by autocatalytic deposition and their structure, chemistry and corrosion behaviors in sulfuric acid solutions were studied as a function of their composition. The as-prepared Ni-based alloys are nanocrystalline, and their grain size decreases with increasing P content. Addition of a third element (W or Mo) influences the observed grain size. At low anodic overpotential NiP based alloys present a lower exchange current and lower reactivity than Ni, both improving with increasing P content. Contrary to Ni however, the NiP based alloys do not passivate at higher anodic overpotentials. Addition of W to NiP alloys can improve their corrosion resistance, while addition of Mo has little or no beneficial effects on corrosion properties.     

电沉积Ni-P合金镀层耐蚀性的研究

研究了不同磷含量的Ni-P合金镀层在NaCl介质中的耐腐蚀性能。通过浸泡实验,得出不同磷含量的Ni-P合金镀层在w（NaCl）=5%和饱和NaCl溶液中的腐蚀数据,同时还与纯镍镀层、化学镀Ni-P合金镀层、1Cr18Ni9Ti不锈钢以及A3钢进行了比较。     

化学镀Ni—W—P合金镀层的XPS分析

利用红外光谱和Ｘ射线光电子能谱对化学镀Ｎｉ－Ｗ－Ｐ合金镀层表面膜进行了研究,结果表明,Ｎｉ－Ｗ－Ｐ合金镀层表面存在一层薄而致密的氧化膜,而镀层内的Ｎｉ、Ｗ、Ｐ则均以零价态形式存在。     

电沉积Ni-Fe-P非晶态合金镀层变温晶化的研究

用差热分析的方法研究了电沉积Ｎｉ－Ｆｅ－Ｐ非晶态合金镀层的变温晶化过程。通过实验得出不同铁含量的Ｎｉ－Ｆｅ－Ｐ合金在不同加热速度下的开始晶化温度、结束晶化温度,并计算出其晶化激活能。对不同Ｆｅ含量镀层的晶化激活能进行比较发现,Ｆｅ元素在Ｎｉ－Ｆｅ－Ｐ合金镀层中具有稳定非晶态组织的作用。     

碳钢沉积镍磷合金组合材料的力学与防护性能

对以４５＃钢为基体沉积镍磷合金层组合材料的力学性能、腐蚀磨损性能进行试验研究。与２Ｃｒ１３不锈钢相比,４５＃钢 镍磷合金组合材料力学性能相当,防护性能优良,能够代替２Ｃｒ１３不锈钢。     

化学镀非晶态Co-Ni-P薄膜磁性的研究

化学镀Ｃｏ－Ｎｉ－Ｐ薄膜镀态下为非晶态结构,Ｃｏ－Ｎｉ－Ｐ薄膜的矫顽力较低,矩形比较高,其易磁化方向与膜面垂直。薄膜越厚,矫顽力越高,矩形比越低;镀液的ｐＨ值越高,矫顽力越高;当以化学镀Ｎｉ－Ｐ合金作为中间镀层时,可获得较高的矫顽力和矩形比。     

N80钢化学镀Ni—Fe—P的抗CO2腐蚀性能研究

采用腐蚀失重法和电化学测试方法评价了裸样N80油套管钢及其化学镀Ni—Fe—P防腐层的抗CO2腐蚀性能。结果表明，在抗CO2腐蚀方面，Ni—Fe—P镀层的腐蚀趋势比裸样的腐蚀趋势小，腐蚀电流密度和腐蚀速率低，即化学镀Ni—Fe—P试样的抗CO2腐蚀性能优于裸样的抗CO2腐蚀性能。     

Electrodeposition of high phosphorus Ni–P alloys in emulsified supercritical CO2 baths

The use of an emulsified supercritical CO₂ (sc-CO₂) bath for electrodeposition of Ni–P alloys was attempted. The material characteristics of the deposits with various P contents, formed by varying the electrolyte composition and deposition current density, were investigated by means of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD) for surface morphology and chemical composition and crystal structure analyses. The experimental results showed that the presence of sc-CO₂ in the electrodeposition bath could substantially improve the microhardness and the corrosion performance of the as-deposited Ni–P coatings. The roles of phosphorus and carbon in modifying the material properties of the deposits are discussed in detail.     

The effect of electroless bath pH on the surface properties of one-dimensional Ni–P nanomaterials

In this research, the one-dimensional Ni–P nanomaterials was formed on alumina substrate. The effect of electroless bath pH on the surface properties of one-dimensional Ni–P nanostructures was investigated. For evaluation of morphological properties and chemical composition of deposits, scanning electron microscopy (SEM) analysis, which coupled with energy disperse spectroscopy (EDS) were used. Two-step anodization for alumina substrate was selected as the best sample for producing the one-dimensional Ni–P nanomaterials. The electroless coating was carried out at different pH = 4.5, 5.5 and 6.5 values. The results showed that in all samples, due to the high Ni–P deposition rate, the Ni–P nanomaterials does not fill the entire channel path. By increasing the pH value, the one-dimensional nanomaterials were changed from nanowire to nanotube type. Also, by increasing the pH value, despite increasing the length of Ni–P nanomaterials, but the compactness of this material was reduced. So, the optimum pH value for producing the one-dimensional Ni–P materials was 4.5. On the other hand, by reducing the pH value, the crystallinity degree of Ni–P deposits was increased. The pH content trends along the nanomaterials length were indicated that the phosphorus content toward the bottom of channel was increased.