【摘要】：采用HVOF技術(shù)制備了CoCrAlSiY涂層,用質(zhì)量分?jǐn)?shù)75%Na_2SO_4+25%NaCl熱鹽涂敷的方法,對比了不同質(zhì)量分?jǐn)?shù)Si含量(0%、2%及5%)CoCrAlSiY涂層在900℃下的抗熱腐蝕性能。結(jié)果表明:隨著反應(yīng)溫度升高,涂層的平均腐蝕穿透深度呈增加趨勢;隨著Si含量上升,涂層的平均腐蝕穿透深度逐漸下降。腐蝕后CoCrAlSiY涂層內(nèi)生成了高熔點(diǎn)的金屬硅化物CrSi,有助于提高涂層的抗腐蝕性能。
[Abstract]:CoCrAlSiY coatings were prepared by HVOF technique. The thermal corrosion resistance of CoCrAlSiY coatings with different mass fraction of Si (0% and 5%) was compared at 900 鈩，

本文編號：2204451