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金属学报  1990, Vol. 26 Issue (1): 1-7    
  论文 本期目录 | 过刊浏览 |
Fe-Cr-Mn奥氏体合金的辐照体胀与诱起晶界偏析行为的研究
胡本芙;高桥平七郎;伊藤久敏;竹山太郎
北京科技大学材料科学及工程系金相教研组;副教授;北京(100083);日本北海道大学;日本北海道大学;日本北海道大学
BEHAVIOR OF VOID SWELLING AND RADIATION-INDUCED SEGREGATION IN Fe-Cr-Mn ALLOY SYSTEM UNDER ELECTRON IRRADIATION
HU Benfu;TAKAHASHI Heishichiro;ITOH Hisatoshi;TAKEYAMA Taro University of Science and Technology Beijing Hokkaido University; Sapporo; Japan Section of Metallography; Department of Materials;University of Science and Technology Beijing; Beijing 100083
引用本文:

胡本芙;高桥平七郎;伊藤久敏;竹山太郎. Fe-Cr-Mn奥氏体合金的辐照体胀与诱起晶界偏析行为的研究[J]. 金属学报, 1990, 26(1): 1-7.
, , , . BEHAVIOR OF VOID SWELLING AND RADIATION-INDUCED SEGREGATION IN Fe-Cr-Mn ALLOY SYSTEM UNDER ELECTRON IRRADIATION[J]. Acta Metall Sin, 1990, 26(1): 1-7.

全文: PDF(1327 KB)  
摘要: 本文采用电子束辐照,研究了Fe-15Cr-xMn合金以及添加W,V合金的孔洞体胀和诱起晶界偏析行为,并对包含晶界在内的辐照区进行成分分析。 结果表明,在Fe-Cr-Mn系合金中孔洞体胀孕育期可以被强烈抑制,晶界偏析也减少。特别是,合金中添加W,V效果更加明显。用Mn代替Ni,通常要发生体胀和相的不稳定性,由于反Kirkendall效应导致Ni和Mn的扩散行为不同,使Fe富集在尾闾处,局部地区形成铁素体,有利于减少体胀和晶界偏析。
关键词 诱起偏析体胀电子束幅照Fe-Cr-Mn合金    
Abstract:The behavior of void swelling and segregation in Fe-15Cr-xMn alloysand alloy coataining small amount of W and V was investigated by electron-irradiation. The compositional analysis in the irradiated regions including grainboundaries was performed. The results show that there are many common featuresof irradiation behavior in the Fe-Cr-Mn and Fe-Cr-Ni systems while there are somesignificant differences. In the Fe-Cr-Mn alloy systems void swelling was remarka-bly suppressed and at the same time the radiation-induced segregation was also re-tarded, furthermore, the segregation was strongly retarded in Fe-15Cr-15Mn alloycontaining small amount of W and V. The results also show that Ni replaced byMn does not in general confer immunity from either swelling or phase instabilities.The phase instability is due to the different diffusion behavior of Ni and Mn inresponse to the operation of the inverse-Kirkendall effect. Fe segregates to the mi-crostructural sinks in the Fe-Cr-Mn alloys. The segregation of Fe often leads tothe formation of ferrite. This fact is beneficial to reduce the swelling rate andsegregation on the grain boundaries.
Key wordsradiation-induced segregation    inverse-Kirkendall effect    void swelling    electron irradiation    Fe-Cr-Mn alloy
收稿日期: 1990-01-18     
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[2] 胡本芙; 高桥平七郎 . He对低活性Fe-Cr-Mn(W, V)合金辐照产生点缺陷行为的影响[J]. 金属学报, 2004, 40(9): 955-961 .
[3] 梁工英;邢建东. Fe-Cr-Mn耐热合金的热分析研究[J]. 金属学报, 1991, 27(6): 99-103.
[4] 胡本芙;高桥平七郎;竹山太郎. 电子辐照Fe-Cr-Ni奥氏体合金的空洞体胀与诱起晶界偏析的研究[J]. 金属学报, 1988, 24(3): 180-186.