Additive manufacturing of three-dimensional (3D)-architected CoCrFeNiMn high- entropy alloy with great energy absorption. (1st January 2021)

• Record Type: Journal Article
• Authors: Peng, Siyuan; Mooraj, Shahryar; Feng, Rui; Liu, Liang; Ren, Jie; Liu, Yanfang; Kong, Fanyue; Xiao, Zhiyu; Zhu, Cheng; Liaw, Peter K.; Chen, Wen
• Is Part Of: Scripta materialia. Number 190(2021)
• Page Start: 46
• Page End: 51
• Publication Date: 2021-01-01
• Subjects: Additive manufacturing -- Direct ink writing -- High-entropy alloy -- Architected materials -- Mechanical property; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2020.08.028
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: In this study, we developed an approach to additive manufacturing of three-dimensional (3D)-architected CoCrFeNiMn high-entropy alloys by direct ink writing combined with thermal sintering. The 3D-architected CoCrFeNiMn lattices exhibit the outstanding energy absorption capacity that expands the envelope of existing architected materials. Such a high-energy absorption ability originates from the bend-dominated deformation mode of the 3D-architecture as well as the fully-annealed homogeneous microstructure of equiaxed grains, which collectively lead to remarkable strain hardening upon deformation. Our study provides a new avenue for 3D-printing advanced architected materials with extreme mechanical energy absorption for a myriad of structural applications. Graphical abstract: Image, graphical abstract