کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1575010 | 1514736 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of heat-treatment on-line process temperature on the microstructure and tensile properties of a low carbon Nb-microalloyed steel
ترجمه فارسی عنوان
اثر دمای فرآیند پردازش حرارتی بر ریزساختار و خواص کششی فولاد نیکل کربن کم کربن
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
The microstructures of a low carbon Nb-microalloyed steel processed with the Heat-treatment On-line Process (HOP) technology, whose highest heating temperature ranges from 560 °C to 720 °C, were characterized. The tensile properties were evaluated from the ThermoMechanical Control Process (TMCP) treated samples. The results indicate that the microstructure is primarily composed of non-equiaxed ferrite grains with martensite/austenite (M/A) constituent dispersed at grain boundaries for the specimens with different HOP temperature. The refinement of niobium precipitate particle and increase of volume fraction of precipitation could induce the enhancement of the yield strength when increasing the HOP temperature. The relationship between the average size and volume fraction of the precipitate particles and the precipitation strengthening part of yield strength follows the Orowan-Ashby equation. Moreover, the yield ratio slightly reduces with the increasing amount of M/A constituent, and a platform of yield ratio emerges when the HOP temperature ranges from 590 °C to 720 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 607, 23 June 2014, Pages 559-568
Journal: Materials Science and Engineering: A - Volume 607, 23 June 2014, Pages 559-568
نویسندگان
Lei Fan, Tongliang Wang, Zhibin Fu, Shuming Zhang, Qingfeng Wang,