Open-Cellular Co-Base and Ni-Base Superalloys Fabricated by Electron Beam Melting

Materials

关键词: superalloys;    mesh and foam structures;    dynamic stiffness;    electron beam melting;    microstructures;   

DOI  :  10.3390/ma4040782

来源: DOAJ

【 摘 要 】

Reticulated mesh samples of Co-29Cr-6Mo alloy and Ni-21Cr-9Mo-4Nb alloy (625) and stochastic foam samples of Co-29Cr-6Mo alloy fabricated by electron beam melting were characterized by optical metallography, and the dynamic stiffness (Young’s modulus) was measured by resonant frequency analysis. The relative stiffness (E/Es) versus relative density (ρ/ρs) plotted on a log-log basis resulted in a fitted straight line with a slope n ≅ 2, consistent with that for ideal open cellular materials.

【 授权许可】

Unknown