Kinetics of grain growth in powder-formed IN-792: A nickel-base superalloy

1990 ◽  
Vol 25 (2) ◽  
pp. 211-220 ◽  
Author(s):  
Zainul Huda ◽  
Brian Ralph
Keyword(s):  
Grain Growth ◽  
Nickel Base Superalloy ◽  
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.

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

The Abnormal Grain Growth of P/M Nickel-Base Superalloy: Strain Storage and CSL Boundaries

2014 ◽  
Vol 1064 ◽  
pp. 49-54 ◽  
Author(s):  
Shuang Fang ◽  
Yun Peng Dong ◽  
Shu Yun Wang
Keyword(s):  
Strain Rate ◽  
Grain Growth ◽  
Deformation Temperature ◽  
True Strain ◽  
Compressive Force ◽  
Constant Strain Rate ◽  
Nickel Base Superalloy ◽  
Strain Rates ◽  
Nickel Base ◽  
Base Superalloy

The Nickel-base superalloy samples were prepared by the isothermal forging in different strain rates at 1070°C. The isothermal deformation tests were carried out at constant strain rate in a vacuum environment using the Thermecmastor (Fuji Electronic Industrial Co., Japan) with a capacity of 30 ton compressive force. All the samples were deformed to a true strain of 1.04 at deformation temperature 1070°C and strain rate 0.001s-1~0.1s-1 respectively. The result is The deformation strain rate determine the position and domain of AGG and the temperature determine the severity of AGG by deformation temperature and temperature rise. The most serious region of AGG is related to the specific CSL boundaries. The fraction of Ʃ3 boundary reaches the peak point value and fraction of Ʃ7 boundary reaches the valley point value in all the samples with different strain rates. The most serious region of AGG is also related to the residual strain. In the most serious region of AGG, more dislocation is used to prefer grain growth to recrystallization, which can refine grain.

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