固溶时效处理对N03360镍铍合金组织的影响  

Effect of solution and aging treatment on microstructure of N03360 Ni-Be alloy

作　　者：刘松 刘弢 Liu Song;Liu Tao(AVIC Jincheng Nanjing Electrical and Hydraulic Engineering Research Center,Nanjing Jiangsu 211106,China;Yizhi High-Teck(Tianjin)Co.,Ltd.,Tianjin 300480,China)

机构地区：[1]中国航空工业集团公司金城南京机电液压工程研究中心,江苏南京211106 [2]依智高新技术(天津)有限公司,天津300480

出　　处：《金属热处理》2025年第1期150-154,共5页Heat Treatment of Metals

摘　　要：采用光学显微镜、显微硬度计等手段,研究了固溶处理温度(1030~1190℃)、时效温度(460~530℃)及保温时间(0.5~2 h)对含钛元素的N03360镍铍合金组织的影响。结果表明,固溶温度超过1100℃时,N03360合金晶粒有长大的趋势。当温度超过1170℃时,会引起过烧,局部晶界熔化,镍铍化合物团聚。N03360合金在晶界处不连续脱溶过程中产生的富铍相,会使其硬度降低。固溶温度越高,其时效处理产生的不连续脱溶过程越剧烈;时效温度过高及保温时间过长也会使N03360合金晶界处不连续脱溶过程失去控制。Effects of solution treatment temperature(1030-1190 ℃),aging temperature(460-530 ℃),and holding time(0.5-2 h) on the microstructure of N03360 Ni-Be alloy with Ti addition were studied by optical microscope and microhardness tester.The results show that the grain size of the N03360 alloy tends to increase when the solution treatment temperature exceeds 1100 ℃.When the temperature exceeds 1170 ℃,it will cause overburning,local grain boundary melting and NiBe compounds agglomeration.The rich-Be phase generated during the discontinuous precipitation process of the N03360 alloy at the grain boundaries will reduce the hardness.The higher the solution treatment temperature is,the more violent the discontinuous dissolving process will be.If the aging temperature is too high or the holding time is too long,the discontinuous dissolving process at the grain boundaries of the N03360 alloy will be out of control.

关 键 词：N03360合金 不连续脱溶 富铍相 固溶处理 时效处理 过烧 

分 类 号：TG142[一般工业技术—材料科学与工程]