کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
831946 908113 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Temperature increment during quasi-static compression tests using Mg metallic alloys
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Temperature increment during quasi-static compression tests using Mg metallic alloys
چکیده انگلیسی

During plastic deformation of metals, part of the plastic work is converted into heat. Therefore, the increases in generated heat may be quantified using an infrared camera to measure the radiation emitted on the surface of the specimen. The goal of this work is to evaluate the way in which the temperature increase is influenced by the initial test temperature, strain rate, and friction condition between specimen and device. Thus, experimental tests were conducted under quasi-static loading conditions using two kinds of materials, a Mg alloy (ZC71) and the same alloy reinforced with ceramic particles (SiC, 12 vol.%). Conclusions are reported on the mechanical behaviour, in term of instabilities, and temperature increase coupled to strain-rate sensitivity. A numerical model defining quasi-static test was used to estimate local quantities such as temperature increase, ΔT  , and macroscopic behaviour, σ¯–ε¯p.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 31, Issue 7, August 2010, Pages 3259–3269
نویسندگان
, , , ,