摘要
利用显微硬度计、金相显微镜和电化学技术,以及浸泡腐蚀和磨损试验等方法.研究丁Ni-W-Mo-P四元合金镀层在加热过程中,引起的镀层结合力、孔隙率、硬度、耐磨性、耐蚀性、腐蚀电位和抗氧化等性能的变化。结果表明,400℃×1h热处理后,镀层的硬度最高(960HV),耐磨性最好,但是其耐蚀性较差。在200℃下热处理6h,镀层显微硬度显著增加,达1000HV。经400℃保温后,其抗氧化性优于未化学镀的45钢。
The influences of heat treatment process on the bonding strength, porosity, microhardness, wear resistance, corrosion resistance, corrosion potential and the oxidation resistance of electroless plating Ni-W-Mo-P were investigated using microhardness tester, optical microscope and electro-chemistry methods. The results show that the maximum hardness （about 960HV） and good wear resistance of Ni-W-Mo-P plating are obtained when heat-treated at 400℃ for 1 h. However, its corrosion resistance is worse. Furthermore, its microhardness is obviously improved after heat-treating at 200 ℃for 6h, and up to 1000 HV. After heat-treating at 400℃, the oxidation resistance of Ni-W-Mo-P plating is superior to that without electroless plating 45 steel.
出处
《热加工工艺》
CSCD
北大核心
2008年第22期52-55,共4页
Hot Working Technology
基金
材料腐蚀与防护四川省高校重点实验室科研基金资助项目(2007CL006)
