姚素薇
,
赵水林
,
郭鹤桐
材料研究学报
电沉积Ni-P,Ni-W和Ni-W-P非晶态合金镀层的阳极极化曲线表明,添加类金属P使镀层的腐蚀电位向正向移动,添加高熔点金属W使维钝电流密度降低.此外,对Ni-W和Ni-W-P合金镀层进行钝化处理,可显著提高镀层在NaCl溶液中的耐腐蚀性能
关键词:
Ni-P
,
Ni-W
,
Ni-W-P
,
amorphous alloy deposits
,
corrosion resistance.
A.P.Zeng
,
Y.Xue
,
Y.F.Qian and Z.J.Wang Shanghai Institute of Metallurgy
,
The Chinese Academy of Sciences
,
Shanghai 200050
,
China
金属学报(英文版)
A no pollution organic acid based conversion coating solution MIS. No.1 has been examined as to its suitability as possible replacement for chromate containing formulations on magnesium alloys. Investigations have concentrated on the formation of passive film from simple MIS. No.1 solution using immersion. The morphology of passivated surfaces was examined using scanning electron microscopy (SEM). The corrosion resistance of the passivated surfaces and the painted surface was assessed using electrochemical techniques as well as humidity and salt fog tests. It was concluded that the surface treatment magnesium alloy by MIS.No.1 solution is more effective than that by chromate coating treatment, and the MIS.No.1 coating is also suitable for painting's pretreatment.
关键词:
non chromate conversion coating
,
null
,
null
,
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