Abstract
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 depo-sition(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 fab-ricated 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,hard-ness,impact toughness,and fatigue performances.Finally,future directions for work on the AM of 18％nickel maraging steel are provided.
基金项目
Natural Sciences and Engineer-ing Research Council(NSERC)of Canada()
NETL
NSTL
维普
万方数据