采用增重法研究了排气系统用3种铁素体不锈钢在800℃高温空气中的氧化速率,并应用X射线衍射(XRD)、扫描电镜(SEM)及能谱分析(EDS)技术,对氧化膜的形貌和组成进行了分析.结果发现,2#和3#钢具用较好的抗高温氧化性能,其中2#钢抗高温氧化性能更好,是由于在氧化过程中除了生成Cr2O3薄膜外,还生成了SiO2薄膜,此薄膜抑制了铬和氧的扩散,从而降低了氧化速度;1#钢抗高温氧化性能比较差,是由于铬含量比较低,不能够形成连续致密的氧化膜来阻止氧的扩散.
参考文献
| [1] | Fujita N.;Ohmura K.;Yamamoto A. .Changes of microstructures and high temperature properties during high temperature service of Niobium added ferritic stainless steels[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):272-281. |
| [2] | 杨照明,韩静涛,刘靖,刘彪.奥氏体耐热不锈钢310S的抗高温氧化性能研究[J].热加工工艺,2006(14):33-34,57. |
| [3] | A.M. Huntz;A. Reckmann;C. Haut .Oxidation of AISI 304 and AISI439 stainless steels[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2007(1/2):266-276. |
| [4] | Kaito T;Narita T;Ukai S;Matsuda Y .High temperature oxidation behavior of ODS steels[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2004(0):1388-1392. |
| [5] | G. Bamba;Y. Wouters;A. Galerie .Thermal oxidation kinetics and oxide scale adhesion of Fe-15Cr alloys as a function of their silicon content[J].Acta materialia,2006(15):3917-3922. |
| [6] | Perez FJ;Cristobal MJ;Hierro et al.The influence of implanted silicon on the cyclic oxidation behaviour of two different stainless steels[J].Surface and Coatings Technology,1997,120-121:442-447. |
| [7] | 吴莹,牛焱.Si对Ni-xAl合金900℃氧化行为的影响[J].金属学报,2005(08):865-870. |
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