热处理对718Plus合金组织及性能的影响研究现状  

Research progress on effect of heat treatment on microstructure and mechanical properties of 718Plus superalloy

作　　者：高婷艳 黎红英 蒋玉平 张策 姚万春 王民庆[3] GAO Tingyan;LI Hongying;JIANG Yuping;ZHANG Ce;YAO Wanchun;WANG Minqing(AECC Chengdu Engine Co.,Ltd.,Chengdu 610503,Sichuan,China;School of Power and Energy,Northwestern Polytechnical University,Xi'an 710100,Shaanxi,China;Superalloy Department,Central Iron and Steel Research Institute Co.,Ltd.,Beijing 100081,China)

机构地区：[1]中国航发成都发动机有限公司,四川成都610503 [2]西北工业大学动力与能源学院,陕西西安710100 [3]钢铁研究总院有限公司高温材料研究所,北京100081

出　　处：《钢铁研究学报》2024年第11期1369-1378,共10页Journal of Iron and Steel Research

基　　金：四川省重大科技专项资助项目(2021KZDX0002)。

摘　　要：718Plus合金是一种新型镍基高温合金,其具有良好的综合力学性能、热加工性和焊接性,广泛应用于航空发动机上的机匣、叶片、紧固件、涡轮盘等热端部件,热处理制度对718Plus合金组织及性能具有较大的影响,同时也会影响后续加工和应用过程。综述了国内外关于热处理制度对718Plus合金组织及性能影响的研究现状,讨论了718Plus合金强化相γ′相的生长规律及强化机制、晶界析出相δ/η相的成分和结构及其数量、形态、析出位置对合金力学性能的影响,并展望材料特性与加工过程的工艺匹配研究必要性,以满足718Plus材料不同零部件制造需求。718Plus alloy is a recently developed nickel-based superalloy which is capable of maintaining excellent strength,hot working and welding performance.It is widely used in hot-end components such as casing,blades,fasteners and turbine disks on aero-engines.The heat treatment system has great influence on the microstructure and properties of 718Plus alloy,as well as the subsequent processing of machining and application.The research status and progress of the influence of heat treatment system on the microstructure and properties of 718Plus alloy at home and abroad were reviewed.The growth rhythm and strengthening mechanism of strengthening phaseγ'in 718Plus alloy were discussed.The effects of composition and structure ofδ/ηphase,its quantity,morphology and precipitation position on the mechanical properties of the alloy were analyzed.The necessity of process matching between material characteristics and processing process is also expected to meet the manufacturing requirements of different parts of 718Plus material.

关 键 词：热处理制度 718Plus合金 显微组织 力学性能 强化相 

分 类 号：TG132.32[一般工业技术—材料科学与工程] TG156.9[金属学及工艺—合金]