元素Co、Cu对Fe-36%Ni因瓦合金热膨胀系数的影响  

The Effect of Elements Co and Cu on the Thermal Expansion Coefficient of Fe-36%Ni Invar Alloy

作　　者：陈知伟 朱斌 胡瑜 黄永华 熊安君 王渝 Chen Zhiwei;Zhu Bin;Hu Yu;Huang Yonghua;Xiong Anjun;Wang Yu

机构地区：[1]宝武特冶航研科技有限公司,重庆400084

出　　处：《大型铸锻件》2023年第5期1-3,23,共4页Heavy Casting and Forging

基　　金：重庆英才·创新创业领军人才项目—重大装备用高性能不锈钢创新创业团队(CQYC20210309577)。

摘　　要：通过对Fe-36%Ni因瓦合金材料的化学成分Ni元素的优化控制以及Co、Cu元素的添加,调整了Fe-36%Ni因瓦合金材料的磁化率物理特性,提高了Fe-36%Ni因瓦合金材料的居里点,扩大了反常热膨胀效应的温度范围,降低了Fe-36%Ni因瓦合金材料的热膨胀系数。研发制造的低热膨胀系数Fe-36%Ni因瓦合金材料满足国内某制造公司应用环境的特殊要求:20~230℃温度范围内的热膨胀系数ɑ≤2.6×10^(-6)℃。By optimizing the chemical composition Ni of Fe-36%Ni invar alloy material and adding Co and Cu elements,the physical properties of magnetic susceptibility of Fe-36%Ni invar alloy material have been adjusted,the Curie point of Fe-36%Ni invar alloy material has been improved,the temperature range of anomalous thermal expansion effect has been expanded,and the thermal expansion coefficient of Fe-36%Ni invar alloy material has been reduced.The developed and manufactured low thermal expansion coefficient Fe-36%Ni invar alloy material have met the special requirements of the application environment of a domestic manufacturing company:the thermal expansion coefficientɑ≤2.6×10^(-6)℃in the temperature range of 20~230℃.

关 键 词：因瓦合金 磁化率 居里点 膨胀系数 

分 类 号：TG132[一般工业技术—材料科学与工程]