时效对蒙耐尔(MONEL)合金组织及硬度的影响  

Effects on Monel Alloy′s Structure and Its Hardness Resulted from Aging Treatment

作　　者：李德[1,2] 徐久全 

机构地区：[1]辽宁工学院 [2]锦州市制锯厂

出　　处：《辽宁工学院学报》1997年第2期52-54,共3页Journal of Liaoning Institute of Technology(Natural Science Edition)

摘　　要：合金在不同时效温度、不同时效时间下进行时效处理时，在硬度上都将出现一个最大峰值，并随时效时间的延长，硬度值逐渐下降，其变化的主要原因是在时效过程中有γ′沉淀相析出，而γ′沉淀相的大小与时效温度、时效时间有关。合金的强化主要来源于γ′沉淀相对运动位错的阻碍作用。The maximum peak value shown by the hardness of an alloy will always occur when this alloy is given the aging treatment under different aging time and aging temperatures, with the value of hardness going down gradually as the aging time prolonged. The reason for this change is mainly due to the r′ precipitation phase isolated during the aging process. The size of this r′ precipitation phase has something to do with the aging temperature and time. The alloy strengthening mainly results from the resistance in the r′ precipitation phase to the movement dislocation.

关 键 词：MONEL合金 硬度 时效强化 组织 镍铜合金 

分 类 号：TG146.15[一般工业技术—材料科学与工程]