陈伟鹏,张欢,谢智辉,计云萍

• 1:白云鄂博矿稀土及铌资源高效利用省部共建重点实验室
• 2:内蒙古科技大学能源与环境学院
• 3:内蒙古科技大学材料与冶金学院

摘要(Abstract)：

针对不加稀土与添加镧铈混合稀土的低碳低合金钢,在立式管式炉中进行950~1250℃的恒温氧化实验,利用静态增重法绘制氧化动力学曲线,采用扫描电镜对实验钢表面的氧化膜形貌进行观察。结果表明:950~1250℃的恒温氧化动力学曲线均符合抛物线规律,氧化膜具有保护性。稀土的添加提高低碳低合金钢的反应激活能,降低氧化速率常数,提高了抗高温氧化性能,且稀土含量较高的,抗高温氧化性能更好。稀土的添加细化了低碳低合金钢氧化膜的晶粒,增强了氧化膜与基体的粘附性,使氧化膜不易脱落,从而有助于提高抗氧化性能。

关键词(KeyWords)： 稀土;氧化动力学;氧化膜;抗氧化性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51261018)

作者(Author): 陈伟鹏,张欢,谢智辉,计云萍

DOI: 10.13289/j.issn.1009-6264.2015.12.028

参考文献(References)：

• [1]Berthod P.Kinetics of high temperature oxidation and chromia volatilization for a binary Ni-Cr alloy[J].Oxidation of Metals,2005,64(3/4):235-252.
• [2]李美栓.金属的高温腐蚀[M].北京:冶金工业出版社,2001.
• [3]Yu P,Wang W,Wang F H.Influence of cyclic frequency on oxidation behavior of K38 superalloy with yttrium additions at 1273K[J].Rare Earths,2011,29(2):119.
• [4]Fujikawa H,Morimoto T,Nishiyama Y,et al.The effects of small additions of yttrium on the high-temperature oxidation resistance of a Si-containing austenitic stainless steel[J].Oxid Met,2003,59(1):23-40.
• [5]张辉,崔文芳,王建军,等.铈对00Cr17铁素体不锈钢高温抗氧化性的影响[J].中国稀土学报,2010,28(3):366-370.ZHANG Hui,CUI Wen-fang,WANG Jian-jun,et al.Effect of cerium on high temperature oxidation resistance of 00Cr17 ferrite stainless steel[J].Journal of the Chinese Rare Earth Society,2010,28(3):366-370.
• [6]苏勇,孟德松,刘群,等.钇对铜硅合金氧化行为的影响[J].稀土,2014,35(2):48-53.SU Yong,MENG De-song,LI Qun,et al.Influence of yttrium on oxidation behavior of Cu-Si alloys[J].Rare Earths,2014,35(2):48-53.
• [7]杨珍,鲁金涛,赵新宝,等.稀土元素对合金高温氧化的影响[J].中国稀土学报,2014,32(6):641-649.YANG Zhen,LU Jin-tao,ZHAO Xin-bao,et al.Effect of rare earth elements on high temperature oxidation of metals[J].Journal of the Chinese Rare Earth Society,2014,32(6):641-649.
• [8]李亚波,王福明,李长荣,等.铈对Cr12铁素体不锈钢抗高温氧化性能的影响[J].北京科技大学学报,2009,31(11):1406-1419.LI Ya-bo,WANG Fu-ming,LI Chang-rong,et al.Effect of cerium on the high temperature oxidation resistance of Cr12 ferritic stainless steels[J].Journal of University of Science and Technology Beijing,2009,31(11):1406-1419.
• [9]Samanta S K,Mitra S K,Pal T K.Effect of rare earth elements on microstructure and oxidation behavior in TIG weldments of AISI 316 L stainless steel[J].Materials Science Engineering A,2006,430(1/2):242.
• [10]Ma J,He Y D,Wang D R,et al.The effects of pre-oxidation and thin Y2O3coating on the selective oxidation of Cr18-Ni9-Ti steel[J].Materials Letters,2004,58(5):807.
• [11]Liu Z,Gao W,He Y.Modeling of oxidation kinetics of Y-Doped Fe-Cr-Al alloys[J].Oxidation of Metals,2000,53(3/4):341.
• [12]李养良,潘东,王洪涛,等.稀土对Fe基合金激光熔覆层组织性能的影响[J].材料热处理学报,2013,34(3):145-149.LI Yang-liang,PAN Dong,WANG Hong-tao,et al.Effect of rare earth element on microstructure and prorerties of laser clad Fe-based alloy coatings.[J].Transactions of Materials and Heat Treatment,2013,34(3):145-149.
• [13]范晋平,房璐璐,许并社.微量La对Mg-8Al-4Sr-1Y合金组织和性能的影响[J].材料热处理学报,2015,36(3):125-129.FAN Jin-ping,FANG Lu-lu,XU Bing-she.Effect of trace element La on microstructure and prorerties of Mg-8Al-4Sr-1Y alloy[J].Transactions of Materials and Heat Treatment,2015,36(3):125-129.
• [14]朱日彰,何业东,齐慧滨.高温腐蚀及耐高温腐蚀材料[M].上海:上海科学技术出版社,1995.
• [15]余宗森.稀土在钢铁中的应用[M].北京:冶金工业出版社,1987.

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