3D finite element study of temperature variations during equal channel angular pressing

Journal of Advanced Materials and Processing

مقاله 7، دوره 2، شماره 1، اردیبهشت 2014، صفحه 47-54   

نوع مقاله: Research Paper

نویسندگان

Mehdi Shaban Ghazani^{* 1}؛ A. vajd²؛ B. Mosadeg²

¹Young Researchers and Elite Club, Ilkhchi Branch, Islamic Azad University, Ilkhchi, Iran.

²Technical College of Tabriz No.2, Technical and Vocational University, Tabriz, Iran.

چکیده

Equal channel angular pressing is the most promising method of severe plastic deformation with the capability of producing ultrafine grained materials. These materials exhibit improved mechanical and physical properties compared with their coarse grained counter parts.The temperature variation in the sample during ECA-pressing is a key factor determining the final microstructure and mechanical properties of processed material. Therefore, in the present study, temperature rise and temperature distribution in the sample was studied with the aid of finite element simulation. In this regard, the effect of friction, ram speed and material type on the amount of temperature rise and also the temperature profile in the sample was investigated. Results of FEM simulations showed good consistency with the temperature data acquired in the experimental work. In addition, it was shown that the sample temperature AND THE AMOUNT OF TEMPERATURE RISE increases with the increase of friction; ram speed and work hardening coefficient of the material.

کلیدواژه‌ها

Equal Channel Angular Pressing؛ Finite element simulation؛ Temperature Variation

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