摘要
开发了一种新型的制备氧化物弥散强化(ODS)铁素体钢的方法,用该方法研制的12Cr--ODS钢具有优异的室温和高温拉伸强度、较低的韧脆转化温度、良好的抗蠕变性能和抗辐照肿胀性能.分析了预合金粉末中氧化物(Y2O3)经焙烧热分解、热等静压的界面反应和热变形析出过程和演化行为,并提出选用合理的工艺技术有利于氧化物强化相均匀化.
A new production route for producing a new class of oxides dispersion strengthened （ODS） steels was investigated. The steel produced by the chemical socking method has high temperature strength, low ductile-to-brittle transition temperature, good creep properties and void swelling resistance. The formation process and behavior of oxides （ Y2 03 ） in the prealloyed powders were analyzed in the process of thermal decomposition, interracial reactions of hot isostatic pressing, and precipitation of deformation processing. A uniform distribution of oxide particles could be obtained by selecting reasonable parameters.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2011年第3期308-312,共5页
Journal of University of Science and Technology Beijing
基金
国家重点基础研究发展计划资助项目(No.2007CB209800)
关键词
铁素体钢
抗辐射
三氧化二钇
氧化物弥散强化
机理
ferritie steel
radioresistance
yttrium oxide
oxide dispersion strengthening
mechanisms
