کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1599248 1005085 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effiect of silicon and prior deformation of austenite on isothermal transformation in low carbon steels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Effiect of silicon and prior deformation of austenite on isothermal transformation in low carbon steels
چکیده انگلیسی
Isothermal transformation (TTT) behavior of the low carbon steels with two Si contents (0.50 wt pct and 1.35 wt pct) was investigated with and without the prior deformation. The results show that Si and the prior deformation of the austenite have significant effiects on the transformation of the ferrite and bainite. The addition of Si refines the ferrite grains, accelerates the polygonal ferrite transformation and the formation of M/A constituents, leading to the improvement of the strength. The ferrite grains formed under the prior deformation of the austenite become more homogeneous and refined. However, the influence of deformation on the tensile strength of both steels is dependent on the isothermal temperatures. Thermodynamic calculation indicates that Si and prior deformation reduce the incubation time of both ferrite and bainite transformation, but the effiect is weakened by the decrease of the isothermal temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Metallurgica Sinica (English Letters) - Volume 22, Issue 2, April 2009, Pages 100-109
نویسندگان
, , , ,