熔焊工艺在高温合金焊接性能优化的研究现状  

Research status of fusion welding process in welding performance optimization of superalloy

作　　者：王雪融 王诗洋 马国峰[1] 孙元[2] 侯星宇[2] Wang Xuerong;Wang Shiyang;Ma Guofeng;Sun Yuan;Hou Xingyu(Shenyang Key Laboratory of Micro-arc Oxidation Technology and Application,Shenyang University,Shenyang 110044,China;Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]沈阳大学,沈阳市微弧氧化技术及应用重点实验室,沈阳110044 [2]中国科学院金属研究所,沈阳110016

出　　处：《焊接》2024年第12期20-32,共13页Welding & Joining

基　　金：两机专项子课题(J2019-VI-0018-0133);国家自然科学基金面上项目(52175368);国家自然科学基金青年项目(52201054);重点研发计划子课题(2021YFB3700401);沈抚改革创新示范区管理委员会产业创新局揭榜挂帅项目(2021JH15)。

摘　　要：高温合金是一种具有良好的加工性能、疲劳性能和断裂韧性等力学性能的合金材料并在航空航天领域得到了广泛应用。焊接技术作为传统的机械加工工艺与连接方法,广泛地应用于汽车制造、造船和航空航天等领域,在国民工业中占据着非常重要的地位。而熔焊工艺是目前研究高温合金应用最多的焊接工艺。然而,由于服役环境日益严苛,高温合金化学组成日趋复杂,焊接难度随之增加,高温合金的焊接性能受到影响。因此,高温合金的焊接工艺研究具有重要意义。该文主要介绍了高温合金熔焊工艺的主要研究进展,以及围绕裂纹形成机理、焊接工艺对焊缝组织及性能的影响开展对熔焊焊接性的研究。与此同时,提出了解决焊接裂纹的方式,提高合金各项性能,为高温合金焊接结构的加工制造提供指导。Superalloy is an alloy material with good mechanical properties such as processing performance,fatigue performance and fracture toughness,and it has been widely used in the aerospace field.As a traditional mechanical processing technology and connection method,welding technology is widely used in automobile manufacturing,shipbuilding,aerospace and other fields,and it occupies a very important position in the national industry.The fusion welding process is the most widely used welding process for superalloy.However,due to the increasingly harsh service environment,chemical composition of superalloy becomes complex,welding difficulty is increasing,and welding performance of superalloy is affected.Therefore,it is of great significance to study welding process of superalloy.The main research progress on fusion welding process of superalloy is mainly introduced in this paper,and weldability of fusion welding is studied around crack formation mechanism and influence of welding process on microstructure and properties of welds.At the same time,the way to solve welding crack is proposed to improve properties of superalloy and provide guidance for the processing and manufacturing of welded structure of superalloy.

关 键 词：高温合金 焊接性 熔焊工艺 组织 性能 

分 类 号：TG442[金属学及工艺—焊接] TG401