The Effect of Repetitive Corrugation and Straightening by Rolling (RCSR) Process on the Microstructure of 304 stainless steel
Publish place: 10th joint meeting of the 5th International Conference on Materials and Metallurgical Engineering Society and Iranian Foundry Society
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IMES10_253
تاریخ نمایه سازی: 6 اردیبهشت 1396
Abstract:
The current research is an attempt to study the effect of a novel severe plastic deformation technique called repetitive corrugation and straightening by rolling (RCSR) and subsequent annealing on the microstructure and mechanical properties of AISI type 304 austenitic stainless steel. In this study, RCSR process was carried out at 200 °C in order to avoid the formation of martensite phase when a high density of dislocations was introduced into the austenite phase. Thereafter, annealing treatment was applied to refine the microstructure of 304 stainless steel. The specimens were examined by optical microscopy (OM), tensile and micro-hardness tests. The results indicate that by increasing the cycles of RCSR process, more mechanical twins are induced, the hardness and in particular, the yield stress of specimens have been increased.
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Authors
Shima Ahmadzadeh
M.Sc. Student, Metallurgy and Materials Engineering
Mahmoud Nili-Ahmadabadi
Professor, Metallurgy and Materials Engineering School of Metallurgy and Materials, College of Engineering, University of Tehran, Tehran, Iran
Hassan Shirazi
PhD, Metallurgy and Materials Engineering School of Metallurgy and Materials, College of Engineering, University of Tehran, Tehran, Iran
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