摘要
在Ｍ３８Ｇ高温合金上镀铂，然后进行粉末包装渗铝，最后形成Ｐｔ－Ａｌ涂层。经１０００℃、１５００ｈ氧化后，发现涂层中加铂．明显改善氧化膜的粘附性和影响铝的扩散。并讨论铂在氧化中的作用机理。
The platinum-modified aluminide coating was prepared by elec-troplating platinum and then pack cementation of aluminum on M38G supperalloy.The oxidation behaviour of coating was studied at 1000℃ for 1500 hours.The oxidized samples were analysed by optical microscope,EMPA and X-ray diffraction techniques.The results clearly indicate that the addition of platinum can remarkably enhance the adhesion of the oxide scales and affect the diffusion of aluminum in the coating.The mechani-sms of the effect of platinum on the oxidation were discussed.
出处
《贵金属》
CAS
CSCD
北大核心
1995年第1期24-29,共6页
Precious Metals
关键词
铂
铝
涂层
高温氧化
腐蚀试验
Platinum,Aluminum,Coating, High-temperature oxidation test
