Hot deformation behavior of spray formed FGH4095

Abstract

For the numerical simulation of hot working process of spray-formed FGH4095, the high temperature deformation behavior of spray-formed FGH4095 is studied at different deformation temperatures (1010-1140 ℃) and different strain rates (0.001-10.0 s-1) using Gleeble 3800 thermal simulator. The constitutive equation is established with the sinh model. The calculative results are consistent with the experimental data. It indicates that the accurate material model is provided for the numerical simulation for hot working process of spray-formed FGH4095.

Consecutive induction melting of nickel-based superalloy in electrode induction gas atomization

“…[9][10][11] In this case, the ultra-clean nickel-based superalloy powder is critical for PM superalloy components. [12][13][14][15][16][17][18][19][20][21] However, there are no reports on the preparation of nickel-based superalloy powders by the EIGA process. Comparison among titanium, niobium and zirconium alloys, nickel-based superalloy electrodes showed different melting characteristics.…”

Spray forming and mechanical properties of a new type powder metallurgy superalloy

“…[7][8][9][10][11][12][13][14][15] However, researches on spray forming around the PM superalloy are so far, not deep enough and systematic. For instance, the thermal deformation behavior and the microstructure characteristics of the spray-formed PM superalloy were studied by Zhang et al [16][17][18] The fatigue behavior of spray-formed PM superalloy was studied by Xu et al [19] The theoretical modeling of the spray-forming process are carried out by Mi. [20] Therefore, it is very necessary to further study spray-formed PM superalloy, especially to study the mechanism of the relationship between the microstructure and mechanical properties of the spray-formed PM superalloy.…”