scholarly journals Effects of Conditions of Hot Isostatic Pressing and Extrusion on Superplasticity of a Nickel-base Superalloy

1987 ◽  
Vol 27 (11) ◽  
pp. 884-890 ◽  
Author(s):  
Shizuo NAKAZAWA ◽  
Isao TOMIZUKA ◽  
Yutaka KOIZUMI ◽  
Hiroshi HARADA ◽  
Michio YAMAZAKI
Keyword(s):  
Hot Isostatic Pressing ◽  
Nickel Base Superalloy ◽  
Isostatic Pressing ◽  
Nickel Base ◽  
Base Superalloy

Synchrotron 3D μ-Tomography of Porosity during Hot Isostatic Pressing of a Single-Crystal Nickel-Base Superalloy

2021 ◽  
Vol 1016 ◽  
pp. 102-106
Author(s):  
Alexander Epishin ◽  
Bettina Camin ◽  
Lennart Hansen ◽  
Jonas Schmidt
Keyword(s):  
Fatigue Strength ◽  
High Resolution ◽  
Single Crystal ◽  
Hot Isostatic Pressing ◽  
European Synchrotron Radiation Facility ◽  
Nickel Base Superalloy ◽  
Isostatic Pressing ◽  
Long Time ◽  
Nickel Base ◽  
Base Superalloy

The evolution of microporosity in single-crystal nickel-base superalloy CMSX-4 during hot isostatic pressing has been investigated by high resolution tomography at the European Synchrotron Radiation Facility in Grenoble. The kinetic dependencies of microporosity annihilation in the superalloy in initially as-cast and homogenized conditions were obtained. It was shown that smaller homogenization pores of about 5-10 μm in size are rapidly annihilate during hot isostatic pressing, while annihilation of larger solidification pores of size up to a few hundred micrometer takes a long time. After commercial hot isostatic pressing at 1288 °C, 103 MPa, 4 h only rare pores smaller than 20 μm remain, which are not critical for fatigue strength.

Pore annihilation in a single-crystal nickel-base superalloy during hot isostatic pressing: Experiment and modelling

2013 ◽  
Vol 586 ◽  
pp. 342-349 ◽  
Author(s):  
Alexander Epishin ◽  
Bernard Fedelich ◽  
Thomas Link ◽  
Titus Feldmann ◽  
Igor L. Svetlov
Keyword(s):  
Single Crystal ◽  
Hot Isostatic Pressing ◽  
Nickel Base Superalloy ◽  
Isostatic Pressing ◽  
Nickel Base ◽  
Base Superalloy

Effect of HIP Temperature on Microstructure and Creep Property of FGH95 Alloy

2012 ◽  
Vol 31 (1) ◽  
Author(s):  
Jun Xie ◽  
Su-Gui Tian ◽  
Xiao-Ming Zhou
Keyword(s):  
Hot Isostatic Pressing ◽  
Creep Property ◽  
Nickel Base Superalloy ◽  
Creep Properties ◽  
Isostatic Pressing ◽  
Microstructure Observation ◽  
Nickel Base ◽  
Base Superalloy

AbstractBy means of hot isostatic pressing (HIP) treatment, microstructure observation and creep properties measurement, the effects of the HIP temperatures on the microstructure and creep properties of FGH95 nickel-base superalloy are investigated. The results show that, when the HIP temperature is lower than solubility of

Dependence of Intergranular Fracture on Boundary Topography and Cohesion

1973 ◽  
Vol 31 ◽  
pp. 150-151
Author(s):  
J. E. Doherty ◽  
A. F. Giamei ◽  
B. H. Kear ◽  
C. W. Steinke
Keyword(s):  
Grain Boundary ◽  
Room Temperature ◽  
Nickel Base Superalloy ◽  
Boundary Shear ◽  
Room Temperature Ductility ◽  
Solid Solution Matrix ◽  
Nickel Base ◽  
Solution Matrix ◽  
Different Levels ◽  
Base Superalloy

Recently we have been investigating a class of nickel-base superalloys which possess substantial room temperature ductility. This improvement in ductility is directly related to improvements in grain boundary strength due to increased boundary cohesion through control of detrimental impurities and improved boundary shear strength by controlled grain boundary micros true tures.For these investigations an experimental nickel-base superalloy was doped with different levels of sulphur impurity. The micros tructure after a heat treatment of 1360°C for 2 hr, 1200°C for 16 hr consists of coherent precipitates of γ’ Ni3(Al,X) in a nickel solid solution matrix.

Sign in / Sign up

Export Citation Format

Share Document