Effect of the Number and Size of Prior Particle Boundary on Microstructures and Properties of FGH4096M Nickel-Based Superalloy

2021 ◽  
Author(s):  
Lebiao Yang ◽  
Yin Xie ◽  
Xiao-Na Ren ◽  
Chao Cai ◽  
Yusheng Shi ◽  
...  
Keyword(s):  
Nickel Based Superalloy ◽  
Prior Particle Boundary ◽  
Particle Boundary

Effects of heat treatment on prior particle boundary precipitation in a powder metallurgy nickel base superalloy

1995 ◽  
Vol 2 (3) ◽  
pp. 269-279 ◽  
Author(s):  
Yang Wanhong ◽  
Mao Jian ◽  
Wang Wuxiang ◽  
Zou Jinwen ◽  
Zhou Ruifa
Keyword(s):  
Heat Treatment ◽  
Powder Metallurgy ◽  
Nickel Base Superalloy ◽  
Prior Particle Boundary ◽  
Boundary Precipitation ◽  
Nickel Base ◽  
Particle Boundary ◽  
Base Superalloy

Appraisal of Solution Heat Treatment on Elimination of Hafnium Rich γ–γ′ Eutectic and Prior Particle Boundary Precipitate in a Superalloy Powder

2014 ◽  
Vol 3 (1) ◽  
pp. 20140034
Author(s):  
K. M. Oluwasegun ◽  
J. O. Olawale ◽  
M. O. Adeoye ◽  
O. E. Olorunniwo ◽  
O. O. Ige ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Solution Heat Treatment ◽  
Boundary Precipitate ◽  
Prior Particle Boundary ◽  
Particle Boundary ◽  
Superalloy Powder

Influence of Processing Variables on Prior Particle Boundary Precipitation and Mechanical Behaviour in PM Superalloy APK1

1984 ◽  
Vol 27 (3) ◽  
pp. 169-180 ◽  
Author(s):  
R. Thamburaj ◽  
W. Wallace ◽  
Y. N. Chari ◽  
T. L. Prakash
Keyword(s):  
Mechanical Behaviour ◽  
Prior Particle Boundary ◽  
Processing Variables ◽  
Boundary Precipitation ◽  
Pm Superalloy ◽  
Particle Boundary

CO2 laser heating of a ceramic coated nickel based superalloy

1999 ◽  
Author(s):  
A. Pitman ◽  
P. Byrd ◽  
J. Kamalu
Keyword(s):  
Co2 Laser ◽  
Laser Heating ◽  
Nickel Based Superalloy

Phase transformations of rapidly solidified nickel based superalloy

2005 ◽  
Author(s):  
Akeel Dhahir Subhi ◽  
Mohammed Jasim Kadhim ◽  
Ahmed Ali Moosa
Keyword(s):  
Phase Transformations ◽  
Nickel Based Superalloy ◽  
Rapidly Solidified

Surface Modification and its Influence on the Microstructure and Creep Resistance of Nickel Based Superalloy René 77 / Modyfikacja Powierzchniowa Oraz Jej Wpływ Na Mikrostrukture I Wytrzymałosc Na Pełzanie Odlewów Z Nadstopu Niklu Ren´E 77

2013 ◽  
Vol 58 (1) ◽  
pp. 95-98 ◽  
Author(s):  
M. Zielinska ◽  
J. Sieniawski
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Surface Modification ◽  
Turbine Blades ◽  
Processing Parameters ◽  
Grain Structure ◽  
Creep Tests ◽  
Cobalt Aluminate ◽  
Nickel Based Superalloy ◽  
Average Grain Size

Superalloy René 77 is very wide used for turbine blades, turbine disks of aircraft engines which work up to 1050°C. These elements are generally produced by the investment casting method. Turbine blades produced by conventional precision casting methods have coarse and inhomogeneous grain structure. Such a material often does not fulfil basic requirements, which concern mechanical properties for the stuff used in aeronautical engineering. The incorporation of controlled grain size improved mechanical properties. This control of grain size in the casting operation was accomplished by the control of processing parameters such as casting temperature, mould preheating temperature, and the use of grain nucleates in the face of the mould. For nickel and cobalt based superalloys, it was found that cobalt aluminate (CoAl2O4) has the best nucleating effect. The objective of this work was to determine the influence of the inoculant’s content (cobalt aluminate) in the surface layer of the ceramic mould on the microstructure and mechanical properties at high temperature of nickel based superalloy René 77. For this purpose, the ceramic moulds were made with different concentration of cobalt aluminate in the primary slurry was from 0 to 10% mass. in zirconium flour. Stepped and cylindrical samples were casted for microstructure and mechanical examinations. The average grain size of the matrix ( phase), was determined on the stepped samples. The influence of surface modification on the grain size of up to section thickness was considered. The microstructure investigations with the use of light microscopy and scanning electron microscopy (SEM) enable to examine the influence of the surface modification on the morphology of ’ phase and carbides precipitations. Verification of the influence of CoAl2O4 on the mechanical properties of castings were investigated on the basis of results obtained form creep tests.

Residual Stresses in High Speed Turning of Nickel-Based Superalloy*

2014 ◽  
Vol 69 (1) ◽  
pp. 46-53 ◽  
Author(s):  
R. L. Peng ◽  
J.-M. Zhou ◽  
S. Johansson ◽  
A. Bellinius ◽  
V. Bushlya ◽  
...  
Keyword(s):  
Residual Stresses ◽  
High Speed ◽  
High Speed Turning ◽  
Nickel Based Superalloy
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