کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830857 1470361 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the capability of severe plastic deformation of twining induced plasticity (TWIP) steel
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
On the capability of severe plastic deformation of twining induced plasticity (TWIP) steel
چکیده انگلیسی

There are few reports showing that severe plastic deformation of relatively high strength materials such as steels is difficult due to the segmented flow. In the present paper, it is shown that twining induced plasticity (TWIP) steel can be processed successfully by simple shear extrusion without segmentation. Two simple shear extrusion dies with the maximum distortion angle of 30° and 45° are considered. For comparison, TWIP steel is also processed by equal channel angular pressing at two strain rates. Results show that equal channel angular pressing leads to the segmented flow due to flow localization while simple shear extrusion has the capability of processing TWIP steel without cracking. The microstructure after one pass of simple shear extrusion consists of many deformation twins due to imposing large plastic strains into the material.


► Simple shear extrusion has the capability of successful processing of TWIP steel.
► Equal channel angular pressing leads to segmented flow in TWIP steel.
► Flow localization is the source of segmentation during processing of TWIP steel.
► Many deformation twins are observed after one pass SSE in particular grains.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design (1980-2015) - Volume 36, April 2012, Pages 391–395
نویسندگان
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