Trends in Hot Isostatic pressing Technology("Present and Future of Recently Distinctive Processing Technology")

1988 ◽  
Vol 91 (841) ◽  
pp. 1237-1241
Author(s):  
Akira ASARI ◽  
Yoichi INOUE
Author(s):  
Martin W. A. Stewart ◽  
Sam A. Moricca ◽  
Tina Eddowes ◽  
Yingjie Zhang ◽  
Eric R. Vance ◽  
...  

ANSTO has developed a combination of tailored nuclear waste form chemistries coupled with the use of flexible hot-isostatic pressing processing technology to enable the successful incorporation of problematic nuclear wastes into dense, durable monoliths. This combined package also enables the design of waste forms with waste loadings well in excess of those achievable via baseline melting routes using borosilicate glass, as hot-isostatic pressing is not constrained by factors such as glass viscosity, crystallisation and electrical conductivity. In this paper we will discuss some of our experiences with problematic wastes, namely plutonium wastes, sludges and HLW such as the Idaho calcines.


1991 ◽  
Vol 38 (1) ◽  
pp. 16-22
Author(s):  
Katsuhiro Uehara ◽  
Kazuhiko Nakajima

2012 ◽  
Vol 62 (1) ◽  
pp. 73-80 ◽  
Author(s):  
G. Rao ◽  
M. Sankaranarayana ◽  
S. Balasubramaniam

Atomic Energy ◽  
2013 ◽  
Vol 114 (2) ◽  
pp. 136-139
Author(s):  
S. S. Gavrilin ◽  
N. V. Stafeeva ◽  
D. N. Ignatiev

2020 ◽  
Vol 155 ◽  
pp. 01012
Author(s):  
Jun Wang ◽  
Zhaojun Jiang

Since the introduction of hot isostatic pressing (HIP) technology, it has been widely used in powder metallurgy forming and improving the densification of castings. With the increasing demand for the performance of nickel-based single crystal superalloy, more and more scholars started research on the application of hot isostatic pressing in nickel-based single crystal superalloy. This article summarizes the current research progress in the application of hot isostatic pressing to the high temperature of nickel-based single crystals, explains the elimination effect of hot isostatic pressing on porosity and other pore defects in nickel-based single crystal superalloy, analyzes the pore healing mechanism, and the changes in mechanical properties such as tensile, endurance, and fatigue of the alloy after applying hot isostatic pressing are shown. Finally, the future development of China’s hot isostatic pressing technology is prospected.


2015 ◽  
Vol 830-831 ◽  
pp. 19-22
Author(s):  
S. Dineshraj ◽  
Mayukh Acharya ◽  
Alok Agarwal ◽  
S. Girikumar ◽  
Govind ◽  
...  

Hot isostatic pressing (HIPping) technology is used for healing the casting defects for aerospace applications. Castings used for aerospace applications like turbo-pumps need to meet very stringent quality requirements. Complexity of the castings used in these applications, makes it difficult to meet the quality requirements in all the areas. Defects like gas holes, shrinkages, cavities etc. may occur in few locations and need to be repaired by welding or healed by HIPping. In the present study, we attempted to simulate the defect healing capability of HIP in a systematic manner. Artificial defects were created in Austenite-Martensite grade stainless steel cast rod. These rods were then subjected to HIP prcoss cycle at 1150 °C and at a pressure of 1620 bar. Healing of the defects was ensured through X-ray radiography. Detailed microstructural analysis using optical metallography and scanning electron microscopy (SEM) with EDX was carried out before and after HIPping, to understand the defect healing mechanisms. These results are discussed in detail here.


2011 ◽  
Vol 189-193 ◽  
pp. 2935-2938 ◽  
Author(s):  
Ji Wei Wang ◽  
Qing Song Wei ◽  
Guo Cheng Liu ◽  
Yu Kun He ◽  
Yu Sheng Shi

Inert gas atomized (IGA) superalloy Inconel 625 powder was consolidated by hot isostatic pressing (HIPing) directly under the HIPing parameters of 1100°C/110MPa/3h. The structure and properties of the as–HIPed samples were investigated using optical microscopy (OM), scanning electron microscopy (SEM) and tensile tests at room temperature, and its relative density was measured by drainage. The fracture surface morphology of the tensile specimens have been investigated using SEM. The results showed that full density alloy can be obtained under the HIPing parameters of 1100°C/110MPa/3h. Due to the effect of prior particle boundaries (PPBs), the strength of the as-HIPed alloy is comparatively high, but its ductibility is comparatively low.


Sign in / Sign up

Export Citation Format

Share Document