冷轧变形量对Fe-11Cr-5Al-2Mo合金显微组织和力学性能的影响  

Effect of Cold-rolling Deformation on Microstructure and Mechanical Properties of Fe-11Cr-5Al-2Mo Alloy

作　　者：王馨敏 王玉容 吴裕[1] 潘钱付[1] 姚力夫 徐祺[1] Wang Xinmin;Wang Yurong;Wu Yu;Pan Qianfu;Yao Lifu;Xu Qi(Institute of Nuclear Composite Element and Material,Nuclear Power Institute of China,Chengdu,610213,China)

机构地区：[1]中国核动力研究设计院核燃料元件及材料研究所,成都610213

出　　处：《核动力工程》2024年第S01期159-166,共8页Nuclear Power Engineering

基　　金：国家自然科学基金青年科学基金项目(52103363)。

摘　　要：为掌握Fe-11Cr-5Al-2Mo合金冷变形规律,并为其包壳管材研制提供基础数据和理论依据。开展了不同冷轧变形量的Fe-11Cr-5Al-2Mo合金板材轧制实验,对冷轧后的板材在800℃下进行了1 h退火,并对冷轧板材及退火板材的显微组织演变进行了表征,通过室温拉伸试验评价了Fe-11Cr-5Al-2Mo合金的强度和塑性。Fe-11Cr-5Al-2Mo合金板材的变形态组织随着冷轧变形量的增大而拉长,板材的强度随着冷轧变形量的增大而增大。800℃退火1 h后,50%冷轧变形量的板材获得了最细小、均匀的再结晶组织,并且具有良好的韧塑性配合。本文阐明了合金冷轧变形量-组织-性能之间的关系,为Fe-11Cr-5Al-2Mo合金管材冷轧变形量设计和退火工艺研究提供了参考。The purpose of the study is to understand the cold deformation rule of Fe-11Cr-5Al-2Mo alloy,so as to provide data and theoretical basis for the cladding tube manufacturing.The rolling experiments of Fe-11Cr-5Al-2Mo alloy plates with different cold-rolled deformation were carried out.The cold-rolled plates were annealed at 800℃for 1 h,and the microstructure evolution of the cold-rolled plates and annealed plates was characterized.The strength and plasticity of Fe-11Cr-5Al-2Mo alloy were evaluated by the tensile test at room temperature.The deformed microstructure of Fe-11Cr-5Al-2Mo alloy plate is elongated with the increase of cold rolling deformation,and the strength of the plate increases with the increase of cold rolling deformation.After annealing at 800℃for 1h,the plate with 50%cold rolling deformation showed the smallest and uniform recrystallization microstructure,and had a good ductile-plastic fit.In this paper,the relationship between cold rolling deformation,microstructure and properties of the alloy is expounded,which provides a reference for the design of cold rolling deformation and the study of annealing process of Fe-11Cr-5Al-2Mo alloy tube.

关 键 词：Fe-11Cr-5Al-2Mo合金 冷轧变形 力学性能 显微组织 

分 类 号：TL341[核科学技术—核技术及应用] TG142.1[一般工业技术—材料科学与工程]