中国光学, 2016, 9 (3): 335, 网络出版: 2016-06-06
3D打印激光制备多孔镍合金组织和力学性能研究
Microstructure and mechanical properties of porous Ni alloy fabricated by laser 3D printing
3D打印激光熔化技术 多孔镍合金 压缩性能 枝晶断裂 3D printing laser melting technology porous nickel-based alloys compressive properties dendrite fracture
摘要
采用3D打印激光熔化技术制备了多孔镍基合金, 并对其显微组织构成和压缩力学性能进行了分析。研究结果表明, 采用3D打印激光熔化技术制备的多孔镍合金, 孔隙率为1468%~1897%、抗压强度为461~535 MPa, 其微观组织主要呈现γ-Ni枝晶, 压缩断口为撕裂式枝晶断裂。
Abstract
In this paper, porous nickel-based alloys are produced using 3D printing laser melting technique. Microstructure and compressive mechanical properties of porous nickel-base alloys are studied. The results show that the porosity of the porous nickel alloy is 1468%-1897%, and the compressive strength is 461-535 MPa. The microstructure of porous nickel-based alloys is composed of γ-Ni dendrite. The SEM of compression fracture surface show that the fracture mode is the tearing dendrite fracture.
张敏, 刘畅, 任博, 严凯, 陈长军, 王晓南. 3D打印激光制备多孔镍合金组织和力学性能研究[J]. 中国光学, 2016, 9(3): 335. ZHANG Min, LIU Chang, REN Bo, YAN Kai, CHEN Chang-jun, WANG Xiao-nan. Microstructure and mechanical properties of porous Ni alloy fabricated by laser 3D printing[J]. Chinese Optics, 2016, 9(3): 335.
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