深冷处理对CuZnAl合金热膨胀系数的影响  

Effect of Cryogenic Treatment on Thermal Expansion Coefficients of CuZnAl Alloy

作　　者：王亚楠[1] 

机构地区：[1]河北能源职业技术学院机电工程系,河北唐山063004

出　　处：《热加工工艺》2012年第20期197-198,共2页Hot Working Technology

摘　　要：利用膨胀仪测试了深冷处理前后CuZnAl合金在不同温度下的热膨胀系数,探讨了深冷处理对CuZnAl合金热膨胀系数的影响。结果表明:在25～800℃,经深冷处理后CuZnAl合金的热膨胀系数高于深冷处理前CuZnAl合金的热膨胀系数,且深冷处理后的dL/L与T基本呈线性关系。The thermal expansion coefficients of CuZnAl alloy at different temperature were measured by thermal dilatometer, and the effects of cryogenic treatment on thermal expansion coefficients of CuZnAl alloy were studied. The results show that the thermal expansion coefficients of CuZnAl alloy after cryogenic treatment is higher than that of CuZnAl alloy before cryogenic treatment at 25 -800 ℃, and after cryogenic treatment, dL/L is almost linear relation with T.

关 键 词：CUZNAL合金 热膨胀系数 深冷处理 温度 

分 类 号：TG156.91[金属学及工艺—热处理]