Additive manufacturing of 18%nickel maraging steels:Defect,structure and mechanical properties:A review  

作　　者：Lulu Guo Lina Zhang Joel Andersson Olanrewaju Ojo 

机构地区：[1]Department of Mechanical Engineering,University of Manitoba,Winnipeg R3T 5V6,Canada [2]Department of Engineering Science,University West,Trollh tan 46186,Sweden

出　　处：《Journal of Materials Science & Technology》2022年第25期227-252,共26页材料科学技术（英文版）

基　　金：supported by the Natural Sciences and Engineering Research Council(NSERC)of Canada。

摘　　要：This paper reviews the latest research progress in the additive manufacturing(AM)process of 18%nickel maraging steels,which involves laser-based powder bed fusion(L-PBF),laser-based directed energy deposition(L-DED),and wire arc additive manufacturing(WAAM).The emphasis is on the defects,structure,and mechanical properties of the additive manufactured 18%nickel maraging steels.At first,this article outlines the influences of the processing parameters of AM techniques on the defects formed in the fabricated parts,in terms of the L-PBF and WAAM.The macrostructure and microstructure characteristics of as-built and heat-treated 18%nickel maraging steel are then described in detail.Later,the mechanical properties of as-built and heat-treated 18%nickel maraging steel are assessed,such as their tensile,hardness,impact toughness,and fatigue performances.Finally,future directions for work on the AM of 18%nickel maraging steel are provided.

关 键 词：Additive manufacturing 18%Nickel maraging steel DEFECTS MACROSTRUCTURE Microstructure Mechanical properties 

分 类 号：TG142.24[一般工业技术—材料科学与工程]