中国有色金属学报（英文版）
中國有色金屬學報（英文版）
중국유색금속학보（영문판）
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2014年
6期
1785-1790
,共6页
渗铬涂层%填充剂%CeO2%氧化%活性元素效应
滲鉻塗層%填充劑%CeO2%氧化%活性元素效應
삼락도층%전충제%CeO2%양화%활성원소효응
chromizing coating%filler%CeO2%oxidation%reactive element effect
分别采用Al2O3、Al2O3+CeO2和CeO2作为填充剂，于700°C在Ni基体上进行低温渗铬，制备3种渗铬涂层，并在850°C对其进行恒温和循环氧化性能对比研究，研究填充剂对渗铬涂层氧化性能的影响。结果表明：填充剂中CeO2颗粒的加入有利于得到晶粒细小的渗铬涂层。以纯CeO2作为填充剂制备的渗铬涂层，其抗氧化性能明显优于普通的以Al2O3作为填充剂制备的渗铬涂层，而以Al2O3+CeO2作为填充剂制备的渗铬涂层表现出最佳的抗氧化性能。详细分析不同填充剂对渗铬涂层氧化性能的影响。
分彆採用Al2O3、Al2O3+CeO2和CeO2作為填充劑，于700°C在Ni基體上進行低溫滲鉻，製備3種滲鉻塗層，併在850°C對其進行恆溫和循環氧化性能對比研究，研究填充劑對滲鉻塗層氧化性能的影響。結果錶明：填充劑中CeO2顆粒的加入有利于得到晶粒細小的滲鉻塗層。以純CeO2作為填充劑製備的滲鉻塗層，其抗氧化性能明顯優于普通的以Al2O3作為填充劑製備的滲鉻塗層，而以Al2O3+CeO2作為填充劑製備的滲鉻塗層錶現齣最佳的抗氧化性能。詳細分析不同填充劑對滲鉻塗層氧化性能的影響。
분별채용Al2O3、Al2O3+CeO2화CeO2작위전충제，우700°C재Ni기체상진행저온삼락，제비3충삼락도층，병재850°C대기진행항온화순배양화성능대비연구，연구전충제대삼락도층양화성능적영향。결과표명：전충제중CeO2과립적가입유리우득도정립세소적삼락도층。이순CeO2작위전충제제비적삼락도층，기항양화성능명현우우보통적이Al2O3작위전충제제비적삼락도층，이이Al2O3+CeO2작위전충제제비적삼락도층표현출최가적항양화성능。상세분석불동전충제대삼락도층양화성능적영향。
Three different chromizing coatings were produced on Ni substrate using a conventional pack-cementation method with Al2O3, Al2O3+CeO2 and CeO2 acting as filler, respectively, at a greatly decreased temperature (700 °C). Effects of different fillers on the isothermal and cyclic oxidation resistance of chromizing coating in air at 850 °C were comparably investigated. Microstructure results show that the addition of CeO2 into the filler significantly retards the grain growth of the chromizing coating. Oxidation results indicate that the chromizing coating using CeO2 as filler exhibits somewhat increased oxidation resistance than the normal chromizing coating, while the chromizing coating using Al2O3+CeO2 as filler exhibits much better oxidation resistance. The effects of different fillers on the oxidation behaviors were discussed in detail.
