铸造ZG0Cr16Ni4Cu3Nb耐热钢显微组织与力学性能分析  

Microstructure and Mechanical Properties of Cast ZG0Cr16Ni4Cu3Nb Heat Resistant Steel

作　　者：马中钢 李娜 崔彬 李化坤 逯红果 MA Zhonggang;LI Na;CUI Bin;LI Huakun;LU Hongguo(Shandong Ruitai New Material Science and Technology Co.,Ltd.,Zibo 256100,China)

机构地区：[1]山东瑞泰新材料科技有限公司,山东淄博256100

出　　处：《山东冶金》2024年第4期37-39,共3页Shandong Metallurgy

摘　　要：研究了砂箱、单壳对铸造ZG0Cr16Ni4Cu3Nb耐热钢显微组织和力学性能的影响。研究表明:采用砂箱、单壳的方式浇注力学试棒,显微组织主要为板条状马氏体、δ-铁素体、M23C6型碳化物和NbC碳化物;不同点在于,采用砂箱的试棒,基体上存在纳米尺寸的富铜析出相。力学结果表明,采用砂箱的方式浇注试棒,力学性能优于采用单壳的方式浇注试棒。The effects of sand box and single shell on microstructure and mechanical properties of cast ZG0Cr16Ni4Cu3Nb heat resistant steel have been studied.The results show that the microstructure of the mechanical test rod is mainly composed of lath martensite,δ-ferrite,M23C6 carbides and NbC carbides.The difference lies in the existence of nano-sized copper-rich precipitates on the matrix of the test bar of the sand box.The mechanical results show that the mechanical properties of the sand box is better than that of the single shell.

关 键 词：耐热钢 Δ-铁素体 显微组织 力学性能 

分 类 号：TG142.73[一般工业技术—材料科学与工程]