摘要
研究了用于核反应堆低放射性结构材料 Fe- Cr- Mn( W,V)奥氏体钢。通过 ( C+ N)复合强化有效地提高 Fe- 1 2 % Cr- 1 5% Mn( W,V)钢高温强度和蠕变断裂寿命 ,并改善高温塑性。在温度 673K以下 ,该合金比 SUS31 6钢和 JPCAS钢强度和塑性优良。合金强度和塑性与形变温度的相互关系是和合金形变组织变化密切相关。对 673K以上塑性降低的原因进行断口和显微组织分析 ,控制晶界碳化物粗化是进一步提高高温塑性的主要途径。
The Fe Cr Mn(W,V)austenitic steels as a low radio active structural material have been studied The high temperature strength,high temperature ductility and creep rupture life of the material Fe 12Cr 15Mn(W,V)steels can be improved with(C+N)complex strengthening of these alloys are superior to SUS316 steel and JPCAS steel below temperature 673 K in terms of high temperature strength and ductility The relationship between the strength,ductility and the deformation temperature is related to the evolution of deformation microstructure In order to explain the decreased ductility above 673 K,the fracture and microstructure were observed To control the coarse carbides at grain boundaries is very effective for improvement of high temperature ductility
出处
《钢铁》
CAS
CSCD
北大核心
2000年第3期46-51,共6页
Iron and Steel
