Research on Densification Mechanism of Hot Isostatic Pressing Technology in Nickel-Based Superalloys for Marine Environment

2020 ◽  
Vol 109 (sp1) ◽  
Author(s):  
Zhaojun Jiang ◽  
Jun Wang ◽  
Dongmei Cao
Keyword(s):  
Marine Environment ◽  
Hot Isostatic Pressing ◽  
Densification Mechanism ◽  
Isostatic Pressing ◽  
Pressing Technology

scholarly journals Trends in hot isostatic pressing technology.

1991 ◽  
Vol 38 (1) ◽  
pp. 16-22
Author(s):  
Katsuhiro Uehara ◽  
Kazuhiko Nakajima
Keyword(s):  
Hot Isostatic Pressing ◽  
Isostatic Pressing ◽  
Pressing Technology

Hot Isostatic Pressing Technology for Defence and Space Applications

2012 ◽  
Vol 62 (1) ◽  
pp. 73-80 ◽  
Author(s):  
G. Rao ◽  
M. Sankaranarayana ◽  
S. Balasubramaniam
Keyword(s):  
Hot Isostatic Pressing ◽  
Space Applications ◽  
Isostatic Pressing ◽  
Pressing Technology

Solder sealing of zirconium alloy containers in hot isostatic pressing technology

Atomic Energy ◽  
2013 ◽  
Vol 114 (2) ◽  
pp. 136-139
Author(s):  
S. S. Gavrilin ◽  
N. V. Stafeeva ◽  
D. N. Ignatiev
Keyword(s):  
Zirconium Alloy ◽  
Hot Isostatic Pressing ◽  
Isostatic Pressing ◽  
Pressing Technology

scholarly journals Application research progress of hot isostatic pressing technology in nickel-based single crystal superalloy

2020 ◽  
Vol 155 ◽  
pp. 01012
Author(s):  
Jun Wang ◽  
Zhaojun Jiang
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Single Crystal ◽  
Hot Isostatic Pressing ◽  
Single Crystal Superalloy ◽  
Research Progress ◽  
Application Research ◽  
Isostatic Pressing ◽  
Increasing Demand ◽  
Pressing Technology

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.

Development of Hot Isostatic Pressing Technology for Investment Cast Products

2015 ◽  
Vol 830-831 ◽  
pp. 19-22
Author(s):  
S. Dineshraj ◽  
Mayukh Acharya ◽  
Alok Agarwal ◽  
S. Girikumar ◽  
Govind ◽  
...  
Keyword(s):  
Hot Isostatic Pressing ◽  
Microstructural Analysis ◽  
Quality Requirements ◽  
Isostatic Pressing ◽  
Defect Healing ◽  
Aerospace Applications ◽  
Before And After ◽  
Steel Cast ◽  
Stringent Quality ◽  
Pressing Technology

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.

Study on Direct Hot Isostatic Pressing Technology for Superalloy Inconel 625

2011 ◽  
Vol 189-193 ◽  
pp. 2935-2938 ◽  
Author(s):  
Ji Wei Wang ◽  
Qing Song Wei ◽  
Guo Cheng Liu ◽  
Yu Kun He ◽  
Yu Sheng Shi
Keyword(s):  
Room Temperature ◽  
Hot Isostatic Pressing ◽  
Tensile Tests ◽  
Inert Gas ◽  
Inconel 625 ◽  
Full Density ◽  
Fracture Surface Morphology ◽  
Structure And Properties ◽  
Isostatic Pressing ◽  
Pressing Technology

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.

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