The Effect of Temperature and Mo Content on the Lattice Misfit of Model Ni-Based Superalloys
AbstractThe lattice parameters and misfit of the γ and γ′ phases in a series of model quaternary Ni-based superalloys with and without Mo additions have been determined using neutron diffraction between room temperature and 700 °C. Despite the fact that Mo is typically expected to partition almost exclusively to the γ phase and thereby increase the lattice parameter of that phase alone, the lattice parameters of both the γ and γ′ phases were observed to increase with Mo addition. Nevertheless, the effect on the γ lattice parameter was more pronounced, leading to an overall decrease in the lattice misfit with increasing Mo content. Alloys with the lowest Mo content were found to be positively misfitting, whilst additions of 5 at.% Mo produced a negative lattice misfit. A general decrease in the lattice misfit with increasing temperature was also observed. View Full-Text
Share & Cite This Article
Goodfellow, A.J.; Owen, L.R.; Christofidou, K.A.; Kelleher, J.; Hardy, M.C.; Stone, H.J. The Effect of Temperature and Mo Content on the Lattice Misfit of Model Ni-Based Superalloys. Metals 2019, 9, 700.
Goodfellow AJ, Owen LR, Christofidou KA, Kelleher J, Hardy MC, Stone HJ. The Effect of Temperature and Mo Content on the Lattice Misfit of Model Ni-Based Superalloys. Metals. 2019; 9(6):700.Chicago/Turabian Style
Goodfellow, Amy J.; Owen, Lewis R.; Christofidou, Katerina A.; Kelleher, Joe; Hardy, Mark C.; Stone, Howard J. 2019. "The Effect of Temperature and Mo Content on the Lattice Misfit of Model Ni-Based Superalloys." Metals 9, no. 6: 700.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.