Precipitation kinetics of γ′ phase in nickel base superalloy SC16: anin situneutron diffraction study

2003 ◽  
Vol 19 (5) ◽  
pp. 567-572 ◽  
Author(s):  
G. Bruno ◽  
H. C. Pinto
Keyword(s):  
Diffraction Study ◽  
Nickel Base Superalloy ◽  
Precipitation Kinetics ◽  
Nickel Base ◽  
Kinetics Of ◽  
Base Superalloy

The Kinetics of Precipitate Dissolution in a Nickel-Base Superalloy

2017 ◽  
Vol 48 (11) ◽  
pp. 5567-5578 ◽  
Author(s):  
S. L. Semiatin ◽  
N. C. Levkulich ◽  
A. E. Saurber ◽  
D. W. Mahaffey ◽  
E. J. Payton ◽  
...  
Keyword(s):  
Nickel Base Superalloy ◽  
Precipitate Dissolution ◽  
Nickel Base ◽  
Kinetics Of ◽  
Base Superalloy

Coarsening kinetics of γ′ precipitates in the commercial nickel base Superalloy René 88 DT

2009 ◽  
Vol 57 (8) ◽  
pp. 2538-2549 ◽  
Author(s):  
J. Tiley ◽  
G.B. Viswanathan ◽  
R. Srinivasan ◽  
R. Banerjee ◽  
D.M. Dimiduk ◽  
...  
Keyword(s):  
Nickel Base Superalloy ◽  
Coarsening Kinetics ◽  
Nickel Base ◽  
Kinetics Of ◽  
Base Superalloy

Coarsening Kinetics of Grain Boundary in a Cast Nickel Base Superalloy during Long Term Aging

PRICM ◽  
2013 ◽  
pp. 317-325
Author(s):  
Qiang Zeng ◽  
Minghan Zhao ◽  
Ping Yan ◽  
Juntao Li ◽  
Jingchen Zhao ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Nickel Base Superalloy ◽  
Coarsening Kinetics ◽  
Nickel Base ◽  
Kinetics Of ◽  
Base Superalloy

Influence of Particle Mechanisms on Kinetics of Grain Growth in a P/M Superalloy

2004 ◽  
Vol 467-470 ◽  
pp. 985-990 ◽  
Author(s):  
Zainul Huda
Keyword(s):  
Grain Growth ◽  
Kinetic Data ◽  
Phase Particle ◽  
Growth Exponent ◽  
Nickel Base Superalloy ◽  
Second Phase ◽  
Solvus Temperature ◽  
Nickel Base ◽  
Kinetics Of ◽  
Base Superalloy

The current literature reports the quantitative analysis of the kinetics of grain growth influenced by second-phase particle mechanisms for a powder metallurgy nickel-base superalloy: APK-6. Annealing treatments in the superalloy are shown to involve coarsening/dissolution of γ’ particles, and these particles mechanisms are shown to influence the kinetics of grain growth. The grain-growth exponent, n, is computed, and the γ’-solvus temperature of the superalloy is determined to lie between 220 and 270 oC. The kinetic data is interpreted to establish dependence of γ’ particles coarsening/dissolution mechanisms, grain size, γ’-solvus temperature, and annealing time and temperature on the rates of grain growth in the superalloy.

Interaction of the Precipitation Kinetics of δ And γ’ Phases in Nickel-Base Superalloy ATI Allvac® 718PlusTM

2010 ◽  
Vol 638-642 ◽  
pp. 2712-2717 ◽  
Author(s):  
Rene Radis ◽  
Gerald A. Zickler ◽  
Martin Stockinger ◽  
Christof Sommitsch ◽  
Ernst Kozeschnik
Keyword(s):  
Volume Fraction ◽  
Diffuse Interface ◽  
Nickel Base Superalloy ◽  
Interfacial Energies ◽  
Precipitation Behaviour ◽  
Planar Phase ◽  
Nickel Base ◽  
Kinetics Of ◽  
Entropic Effects ◽  
Base Superalloy

In this paper, the precipitation behaviour of  (Ni3(Nb,Al)) and ’ (Ni3(Al,Ti,Nb)) phases in the nickel-base superalloy ATI Allvac® 718PlusTM, as well as their kinetic interactions are discussed. Important parameters such as volume fraction, mean radius and number density of precipitates are experimentally determined and numerically simulated as a function of the heat treatment parameters time and temperature. To match the experimentally observed kinetics, the predicted interfacial energy of the precipitates, as calculated for a sharp, planar phase boundary, is adjusted to take into account the interfacial curvature and entropic effects of a diffuse interface. Correction functions for the interfacial energies of  as well as ’ precipitates are presented. Using these modified interfacial energies, the calculated results show excellent agreement with the experimental measurements.

Sign in / Sign up

Export Citation Format

Share Document