Recent research progress in the mechanism and suppression of fusion welding-induced liquation cracking of nickel based superalloys

作     者：Zongli Yi Jiguo Shan Yue Zhao Zhenlin Zhang Aiping Wu Zongli Yi;Jiguo Shan;Yue Zhao;Zhenlin Zhang;Aiping Wu

作者机构：Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China College of EngineeringChina Agricultural UniversityBeijing 100091China State Key Laboratory of Clean and Efficient Turbomachinery Power EquipmentDepartment of Mechanical EngineeringTsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials Processing TechnologyMinistry of EducationBeijing 100084China School of Material Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2024年第31卷第5期

页      面：1072-1088页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the National Science and Technology Major Project of China(No.J2019-VI-0004-0117) 

主　　题：nickel-based superalloy fusion welding liquation cracking cracking mechanism cracking suppression 

摘      要：Nickel-based superalloys are extensively used in the crucial hot-section components of industrial gas turbines,aeronautics,and astronautics because of their excellent mechanical properties and corrosion resistance at high *** welding serves as an effective means for joining and repairing these alloys;however,fusion welding-induced liquation cracking has been a challenging *** paper comprehensively reviewed recent liquation cracking,discussing the formation mechanisms,cracking criteria,and *** recent investigations,regulating material composition,changing the preweld heat treatment of the base metal,optimizing the welding process parameters,and applying auxiliary control methods are effective strategies for mitigating *** promote the application of nickel-based superalloys,further research on the combination impact of multiple elements on cracking prevention and specific quantitative criteria for liquation cracking is necessary.