Hot Deformation Behavior of Haynes 25 by the Hot Tensile Test

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Samii Zafarghandi M.; ABBASI S.M.

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Journal: ADVANCED MATERIALS IN ENGINEERING (ESTEGHLAL) Year:2019 | Volume:38 | Issue:2 Page(s): 1-10

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Title

Hot Deformation Behavior of Haynes 25 by the Hot Tensile Test

Author(s)

Samii Zafarghandi M. | ABBASI S.M. | Issue Writer Certificate

Keywords

SuperalloyQ1

Hot deformationQ2

CarbideQ2

DuctilityQ2

Dynamic recrystallizationQ2

Abstract

In the present work, hot tensile behavior of Haynes 25 Co-base alloy was investigated in the temperature range of 950-1200 ˚ C and 0. 1 s-1. Thermodynamic calculations showed that M23C6 and M6C Carbides were stable below 1000 ˚ C and above 1050 ˚ C, respectively. Stress-strain curves also indicated an unusual trend of strain fracture. It was observed that with increasing temperature from 950 to 1050 ˚ C, the fracture strain was decreased, while it was raised above 1050 ˚ C again. Increasing the volume fraction of M6C Carbide rich in Tungsten resulted in the loss of Ductility. Also, microstructural evaluations showed Dynamic recrystallization (DRX) grains were nucleated and growth was around Carbides and the initial grains at 1150 ˚ C. Occurrence of DRX led to the improvement of Ductility via grain refinement mechanism, so this alloy had the highest level of Ductility at 1150 ˚ C

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APA: Copy

Samii Zafarghandi, M., & ABBASI, S.M.. (2019). Hot Deformation Behavior of Haynes 25 by the Hot Tensile Test. ADVANCED MATERIALS IN ENGINEERING (ESTEGHLAL), 38(2 ), 1-10. SID. https://sid.ir/paper/163192/en

Vancouver: Copy

Samii Zafarghandi M., ABBASI S.M.. Hot Deformation Behavior of Haynes 25 by the Hot Tensile Test. ADVANCED MATERIALS IN ENGINEERING (ESTEGHLAL)[Internet]. 2019;38(2 ):1-10. Available from: https://sid.ir/paper/163192/en

IEEE: Copy

M. Samii Zafarghandi, and S.M. ABBASI, “Hot Deformation Behavior of Haynes 25 by the Hot Tensile Test,” ADVANCED MATERIALS IN ENGINEERING (ESTEGHLAL), vol. 38, no. 2 , pp. 1–10, 2019, [Online]. Available: https://sid.ir/paper/163192/en

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