高硼钢的微观组织和性能  

Study on microstructure and properties of high borated steel

作　　者：裴燕斌[1,2,3] 王铁军 葛启录[1] 曲选辉[2] PEI Yanbin;WANG Tiejun;GE Qilu;QU Xuanhui(Central Iron&Steel Research Institute,Beijing 100081,China;Institute for Advanced Materials and Technology,The University of Science and Technology Beijing,Beijing 100083,China;Antai-heyuan Nuclear Energy Technology&Materials Co.,Beijing 100094,China;Advanced Technology&Materials Co.,Ltd.,Beijing 100081,China)

机构地区：[1]钢铁研究总院有限公司,北京100081 [2]北京科技大学新材料技术研究院,北京100083 [3]安泰核原新材料科技有限公司,北京100094 [4]安泰科技股份有限公司,北京100081

出　　处：《粉末冶金工业》2022年第5期52-55,共4页Powder Metallurgy Industry

基　　金：河北省发展和改革委员会“2018年高技术产业化及应用示范项目”(冀发改高技[2018]1604号)。

摘　　要：采用铸造和粉末冶金工艺制备硼含量分别为1.04%、1.50%和1.86%的高硼钢,研究了合金的微观组织、物相、硼元素在组织中的分布和物理、力学性能。实验结果表明:粉末冶金工艺制备的合金硼元素分布均匀、而铸造合金硼元素偏聚在晶界,所以前者制备的合金塑性明显优于后者。检测了304B7高硼钢的线膨胀系数和热导率,与普通304不锈钢性能无明显区别。High borated steel with boron content of 1.04%,1.50% and 1.9% were prepared by powder metallurgy and casting process.The microstructure,phase,distribution of boron element and their effects on the properties of the alloy were studied.The results show that the distribution of boron element in the alloy prepared by powder metallurgy is uniform,while the boron element in the casting alloy segregated at the grain boundary,so the plasticity of the alloy prepared by the former is obviously better than the latter.The linear expansion coefficient and thermal conductivity of the alloy were measured.The properties of 304B7 high boron steel are similar to those of 304 stainless steel.

关 键 词：高硼钢 微观组织 硼元素分布 

分 类 号：TG142.1[一般工业技术—材料科学与工程]