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低放射性Fe-Cr-Mn(W、V)奥氏体钢抗辐照损伤特性研究 被引量:1

BEHAVIOUS OF RESISTANCE TO IRRADIATED DAMAGE IN Fe Cr Mn(W、V) ALLOYS WITH LOW INDUCED RADIOACTIVITY
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摘要 电子束辐照结果表明:添加大尺寸溶质原子W、V的FeCrMn合金,由于形成大量微细碳化物,使得合金基体中尾闾数目增加,能有效降低合金基体中点缺陷过饱和浓度,减少空洞肿胀。同时有利于形成高密度位错环,减少它们相互间的间距,缩短点缺陷向尾闾移动扩散的平均自由程,导致点缺陷捕获溶质原子的机会减少,进而抑制辐照诱起晶界偏析。 Results of electron irradiation indicated that as oversized solutes W、V were added to a Fe Cr Mn alloy, a large amount of fine Carbides was formed, the quantity of sinks in matrix increased, and the supersaturated concentration of point defects and void swelling reduced effectively. It was also found that such an addition was appreciated for forming of high density dislocation loops with shortened distance between them, decreasing the average diffusion free path of the point defects migration to sinks, reducing the possibility of point defects to capture solute atoms, and retarding the induced segregation on grain boundary.
出处 《核科学与工程》 CSCD 北大核心 1997年第2期143-149,共7页 Nuclear Science and Engineering
关键词 电子辐照 抗辐照 空洞肿胀 奥氏体钢 铁铬锰 electron irradiation void swelling Fe Cr Mn alloy
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参考文献2

  • 1胡本芙,金属学报,1993年,29卷,A438页
  • 2胡本芙,金属学报,1988年,24卷,A180页

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