Microstructure Evolution of the Stainless Steel ۳۱۶L Subjected to Different Routes of Equal Channel Angular Pressing
Publish place: The Iranian Journal of Materials Forming، Vol: 8، Issue: 2
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJMF-8-2_002
تاریخ نمایه سازی: 28 اردیبهشت 1400
Abstract:
During the past decades, equal channel angular pressing has risen as a promising severe plastic deformation process and it is applied for the grain refinement and strengthening of metallic materials. Although the application of this process to improve the characteristics of austenitic stainless steels has been studied to some extent, little studies have considered the effect of route of the ECAP on this matter. This study aims to study the evolution of microstructure and the increase of hardness of stainless steel ۳۱۶L during processing by two different routes of this process. For this purpose, the alloy is processed at the deformation temperature of ۳۱۰ °C using two different routes of A and Bc. Afterwards, the microstructure evolution of the alloy is studied using the X-ray diffraction and the scanning electron microscopy. Results show that the applied ECAP procedure, irrespective of the applied route, causes a negligible occurrence of the phase transformation while it causes a widespread occurrence of twinning. This fact is related to the elevated temperature applied for the process. Also, the process causes a considerable increase in the hardness of the alloy mainly attributed to the occurrence of twinning.
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Authors
Mojtaba Askari Khan-abadi
Department of Materials Science and Metallurgical Engineering, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran
Mohammad Hassan Farshidi
Department of Materials Science and Metallurgical Engineering, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran
Mohammad Hadi Moayed
Department of Materials Science and Metallurgical Engineering, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran
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