کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5451637 | 1398549 | 2016 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of Mechanical Milling and Sintering Temperature on the Densification, Microstructure and Tensile Properties of the Fe-Mn-Si Powder Compacts
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
This work reported on the effects of mechanical milling and sintering temperature on the densification, microstructure and mechanical properties of the Fe-28Mn-3Si (wt%) alloy. Elemental Fe, Mn and Si powders were used as the starting materials, and two batches of powder mixture were prepared: one was blended elemental (BE) powder mixture; the other was mechanically milled (MM) powder mixture milled for 5âh using planetary ball milling. Both powder mixtures were pressed under a uniaxial pressure of 400âMPa, and subsequently sintered in a high vacuum furnace for 3âh at 1000, 1100, 1200 and 1300â°C. It was found that Mn depletion region (MDR) was formed on the surface of all the sintered samples. The sintered BE compacts had a low density (<68.2%) at all temperatures, while the density of the sintered MM compacts increased drastically from ~65% at 1000â°C to ~91% at 1300â°C. All the sintered MM compacts were composed of a predominant γ-austenite and minor ε-martensite. In comparison, additional (Fe, Mn)3Si phase was observed in the BE alloys sintered at 1000â°C, and a single α-Fe phase was identified in the BE compact sintered at 1300â°C. The tensile properties of the sintered MM compacts increased significantly with the temperature and were significantly higher than those of their BE counterparts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Science & Technology - Volume 32, Issue 11, November 2016, Pages 1161-1170
Journal: Journal of Materials Science & Technology - Volume 32, Issue 11, November 2016, Pages 1161-1170
نویسندگان
Zhigang Xu, Michael A. Hodgson, Peng Cao,