热处理和冷变形量对定膨胀合金4J32C线膨胀系数的影响  

Effects of heat treatment and cold deformation on linear expansion coefficient of constant expansion alloy 4J32C

作　　者：王方军 王东哲 万红 时瑶 沈涛 Wang Fangjun;Wang Dongzhe;Wan Hong;Shi Yao;Shen Tao(Chongqing Materials Research Institute Co.,Ltd.,Chongqing 400707,China;National Instrument Functional Materials Engineering,Chongqing 400707,China)

机构地区：[1]重庆材料研究院有限公司,重庆400707 [2]国家仪表功能材料工程技术研究中心,重庆400707

出　　处：《金属热处理》2022年第4期199-203,共5页Heat Treatment of Metals

基　　金：重庆市技术创新与应用发展专项(cstc2019jscx-fxydX0011)。

摘　　要：研究了不同热处理制度和不同冷变形量对定膨胀合金4J32C线膨胀系数的影响。结果表明,较小的冷变形量不会明显改变合金的线膨胀系数。随着固溶温度的升高,合金的线膨胀系数逐渐降低,在850℃时达到最低值,随后继续升高固溶温度,线膨胀系数略有增大。延长稳定化处理时间或提高稳定化处理温度,可适当增加合金的线膨胀系数。Effects of different heat treatment systems and cold deformation on linear expansion coefficient of the constant expansion alloy 4 J32 C were studied.The results show that the linear expansion coefficient of the alloy is not significantly changed by small amount of cold deformation.With the increase of solution treatment temperature,the linear expansion coefficient of the alloy decreases gradually,reaches the lowest value at 850℃,and then increases slightly with the increase of solution temperature.The linear expansion coefficient of the alloy can be appropriately increased by prolonging the stabilization treatment time or increasing the stabilization treatment temperature.

关 键 词：定膨胀合金 4J32C合金 线膨胀系数 热处理 冷变形 

分 类 号：TG132.1[一般工业技术—材料科学与工程]