郝文慧, 武敏, 罗刚, et al. Effect of Al, Ti, Nb and Mo Content on γ′and η Precipitated Phase in a New Ni-25Cr-20Co Nickel Base Superalloy[J]. Special Steel, 2013, 34(2): 1-3.
郝文慧, 武敏, 罗刚, et al. Effect of Al, Ti, Nb and Mo Content on γ′and η Precipitated Phase in a New Ni-25Cr-20Co Nickel Base Superalloy[J]. Special Steel, 2013, 34(2): 1-3.DOI:
The possible equilibrium precipitated phases in a new Ni-25Cr-20Co nickel base superalloy (/% : 0.03C
25Cr
20Co
0.50Mo
1.38Al
1.38Ti
1.50Nb
others Ni) are analyzed by software Thermo-Cale to get the equilibrium condition diagram of the superalloy and the effect of Al
Ti
Nb and Mo content ( respectively 0.5%-2.5% ) on precipitation behavior of γ′and η phase. Results show that with increasing Al
Ti and Nb content the precipitated amount of γ′ phase in the superalloy increases while the Ti an Nb can promote the precipitation of η phase and enlarge its precipitation temperature range. The Co and Mo have minor influence on both precipitated phases.