High-temperature deformation behavior and processing map of the as-cast Inconel 625 alloy

Rare Metals ◽  
2020 ◽  
Author(s):  
Zhi Jia ◽  
Ze-Xi Gao ◽  
Jin-Jin Ji ◽  
De-Xue Liu ◽  
Ting-Biao Guo ◽  
...  
Keyword(s):  
High Temperature ◽  
Deformation Behavior ◽  
Processing Map ◽  
High Temperature Deformation ◽  
Inconel 625 ◽  
Temperature Deformation ◽  
Inconel 625 Alloy

High Temperature Deformation Behavior of AZ31 Mg Alloy

2005 ◽  
Vol 475-479 ◽  
pp. 2927-2930 ◽  
Author(s):  
B.H. Lee ◽  
Kwang Seon Shin ◽  
Chong Soo Lee
Keyword(s):  
High Temperature ◽  
Deformation Behavior ◽  
Processing Map ◽  
Tensile Elongation ◽  
Mg Alloy ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Deformation Method ◽  
Az31 Mg Alloy ◽  
Average Grain Size

High temperature deformation behavior of AZ31 Mg alloy was investigated in this study on the basis of a processing map (e » 0.6). To construct a processing map, compression tests were carried out at various temperatures and strain rates. Two regions of high deformation efficiency (h) were identified as: (1) a dynamic recrystalization (DRX) domain at 250°C and 1/s and (2) a superplasticity domain at 450°C and 10-4/s. The average grain size observed in the DRX region was considerably smaller (2.9µm) than in any other region. In the superplastic condition, tensile elongation to failure approached to 1040%. At the high Z regions, flow softening occurred resulting from the dynamic recrystallization but below 1010 of Z value, flow hardening occurred due to the grain growth. Possible deformation mechanisms operating at high temperature were discussed in relation to the activation energy. A two-stage deformation method was found to be effective in enhancing the superplasticity of AZ31 Mg alloy.

scholarly journals Experimental Investigation on the Deformation Behavior of Inconel 625 Superalloy at High Temperatures

Metals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 720 ◽  
Author(s):  
Gyeong Uk Jeong ◽  
Chul Kyu Jin ◽  
Hyung Yoon Seo ◽  
Chung Gil Kang
Keyword(s):  
High Temperature ◽  
Deformation Behavior ◽  
High Efficiency ◽  
Testing Machine ◽  
Hot Forging ◽  
High Temperature Deformation ◽  
Inconel 625 ◽  
Temperature Deformation ◽  
Rate Variation ◽  
Strain Rates

Inconel 625 alloys are widely applied for high-corrosion resistance and as high-efficiency materials in aeronautical, aerospace, chemical, nuclear, petrochemical, and marine industries. Although Inconel 625 alloys are excellent materials, they cannot be formed at room temperature owing to difficulties in processing. To improve the formability of Inconel 625, it is necessary to investigate its formability at a high-temperature range and its strain rate variation. In this study, high-temperature deformation behavior after forming was investigated. A high-temperature compression test was performed with a Gleeble 3500 testing machine at various temperatures (approximately 900–1200 °C) and strain rates (10 and 30 s−1) to obtain the high-temperature deformation characteristics of Inconel 625. Furthermore, high-temperature tensile tests were performed to measure elongations and reductions in the area of the Inconel 625 alloy. The tests focused on obtaining the flow stress data and optimal hot forging conditions under various strain rates and temperatures. The results of this research are expected to contribute to hot forming processes and to formability in hot extrusion and pilger processes.

High temperature deformation behavior and processing map for a nickel-titanium shape memory alloy

2017 ◽  
Vol 23 (5) ◽  
pp. 1002-1011 ◽  
Author(s):  
Xiang-Qian Yin ◽  
Sang-Won Lee ◽  
Yan-Feng Li ◽  
Chan-Hee Park ◽  
Xu-Jun Mi ◽  
...  
Keyword(s):  
High Temperature ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Processing Map ◽  
Nickel Titanium ◽  
High Temperature Deformation ◽  
Temperature Deformation
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