采用电子显微术对AL6XN奥氏体不锈钢在500～750℃经过最长3600 h时效后的析出进行研究.结果显示,试验钢在500-550℃没有析出物产生;在600℃时效后,奥氏体晶界析出碳化物.当温度升高到650～750℃,大量的析出物出现在奥氏体晶界以及晶粒内部,通过选区电子衍射及能谱分析表明AL6XN奥氏体钢的析出物为σ与Laves相的金属间化合物.
参考文献
| [1] | 朱发文,张乐福,乔培鹏,刘瑞芹,鲍一晨,陈宇清.超临界水堆候选材料的腐蚀特性研究[J].核动力工程,2009(05):62-66. |
| [2] | Borst K;Pohl M .Precipitation effects in anstenitic stainless weld metals[J].Materials Technology,1990,6:258-261. |
| [3] | Kunimitsu S;Iwamote T;Hotta A.Effect of Mo and Si on Laves phase precipitation in 10%Cr-steels[A].Chiba ISU,1991:627-632. |
| [4] | 郭伟国.4种新型舰艇钢的塑性流变应力及其本构模型[J].金属学报,2006(05):463-468. |
| [5] | Meng, LJ;Sun, J;Xing, H;Pang, GW .Serrated flow behavior in AL6XN austenitic stainless steel[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2009(1):34-38. |
| [6] | 孟丽君,邢辉,庞淦文,孙坚,余伟炜,薛飞.AL6XN超级奥氏体钢的高温蠕变及疲劳行为研究[J].原子能科学技术,2009(06):509-513. |
| [7] | 孟丽君,庞淦文,邢辉,孙坚.AL6XN超级奥氏体钢高温拉伸时的动态应变时效[J].材料热处理学报,2010(04):50-54. |
| [8] | Beckitt F B;Clark B R .The shape and mechanism of formation of M23C6 carbide in austeaite[J].Acta Metnllargiea,1967,15(01):113-129. |
| [9] | I-Hsuang Lo;Wen-Ta Tsai .Effect of heat treatment on the precipitation and pitting corrosion behavior of 347 SS weld overlay[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):137-143. |
| [10] | Brun G;Le Naour J;Vouillon M .Etude de la microstmctare d'um acier 316 titane apres vieillissement et apres irradiation aux neutrons[J].Journal of Nuclear Materials,1981,1-2:109-123. |
| [11] | Williams T M.Precipitation in neutron-irradiated type 316 austenitie steel[A].London,EngLand,1985 |
| [12] | Yukio Takahashi;Hiroshi Shibamoto;Kazuhiko Inoue .Long-term creep rupture behavior of smoothed and notched bar specimens of low-carbon nitrogen-controlled 316 stainless steel (316FR) and their evaluation[J].Nuclear engineering and design,2008(2):310-321. |
| [13] | Weiss B;Stickler R .Phase instabilities during high temperature exposure of 316 austenitic stainless steel[J].Metallursical and Materials Transactions A,1972,3(04):851-866. |
| [14] | Jargelius-Petterson R F A .Precipitation trends in highly alloyed austenific stainless steels[J].Materials Research and Advanced Techniques,1998,79:177-183. |
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