论文部分内容阅读
采用新型高频电脉冲沉积技术在１Ｃｒ１８Ｎｉ９Ｔｉ不锈钢表面上获得了晶粒尺寸约为几十到几百纳米的微晶铝化物涂层在１０００℃空气中恒温氧化１００ｈ的实验结果表明：获得的铝化物微晶涂层具有优异的抗高温氧化性能，而且显著提高了氧化膜的抗剥落能力．施加铝化物涂层后，１Ｃｒ１８Ｎｉ９Ｔｉ不锈钢的氧化膜由以 Ｆｅ的氧化物为主转化为以Ａｌ的氧化物为主．由于材料表面的铝化物涂层为微晶层，提高ＴＡｌ的选择氧化能力和氧化膜的粘附性．
A new type of high-frequency electro-pulse deposition technique was used to obtain a microcrystalline aluminide coating with a grain size of about tens to hundreds of nanometers on the surface of 1Cr18Ni9Ti stainless steel. The experimental results showed that the obtained aluminide Microcrystalline coating has excellent high temperature oxidation resistance, but also significantly improves the anti-spalling ability of the oxide film. After the aluminide coating was applied, the oxide film of 1Cr18Ni9Ti stainless steel was mainly changed from Fe oxide to Al oxide. Due to the coating of the aluminide on the surface of the material being a microcrystalline layer, the selective oxidation of TAI and the adhesion of the oxide film are improved.