摘要
在化学镀过程中施加强磁场法,使Ni-P镀层的热稳定性得到提高。通过XRD和DSC分析,发现在0、4T条件下获得的Ni-P镀层均为磷在镍晶格的过饱和固溶体结构。通过在真空加热炉内将化学镀Ni-P镀层加热至200、300、350℃,并保温1h的热处理法考察其热性能。在200℃以下,4T强磁场下化学镀获得的Ni-P镀层热稳定性较无磁场条件下化学镀获得的Ni-P镀层高。
An effective approach to improve the thermal stability of electroless Ni-P coatings is to use the magnetic fields on the process of deposition. The microstructure of Ni-P coatings deposited at 0 and 4 T is supersaturated solid solutions of phosphorus dissolved in nickel crystal, which is proved by XRD and DSC results. The thermal property of as-deposited Ni-P coatings was investigated by heat treatment for 1 h in vacuum furnace at 200, 300 and 350℃. The results show that Ni-P coatings deposited at 4 T can exhibit better thermal stability than the coatings deposited in the absence of hieh mamaetic fields at 200 ℃.
出处
《热加工工艺》
CSCD
北大核心
2014年第8期127-130,共4页
Hot Working Technology
基金
辽宁省教育厅科学研究一般项目(L2012064)
关键词
化学镀
强磁场
NI-P
热处理
热稳定性
electroless
high magnetic field
Ni-P
heat treatment
thermal stability
