Transactions of Materials and Heat Treatment

Title：Three dimensional finite element analysis of Ti-6Al-4V alloy during equal channel angular pressing

Authors： ZHANG Chen LI Miao-quan LUO Jiao LIN Ying-ying(School of Material Science and Engineering Northwestern Polytechnical University Xi'an 710072 China)

Unit：

KeyWords： titanium alloy equal channel angular pressing finite element method

ClassificationCode：TG379

year,vol(issue):pagenumber：2008,33(5):102-106

Abstract：

Three dimensional finite element simulation was carried out during equal channel angular pressing of Ti-6Al-4V alloy,the effects of extrusion speed and retained sample that remained in the die export channel after ECAP on extrusion process were studied.The results show that extrusion speed deeply affects effective stress,extrusion load and temperature field.It should take low extrusion speed on the premise of effective grain refinement for Ti-6Al-4V alloy which is very sensitive to strain rate.In the experiment,appropriate extrusion speed was 0.3 mm·s-1.Retained sample improves the uniformity of deformation,but it causes the increase of extrusion load in the next sample extrusion stage.

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Reference：

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