کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7999272 | 1516265 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal expansion of iron carbides, Fe7C3 and Fe3C, at 297-911Â K determined by in situ X-ray diffraction
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermal expansion of iron carbides, Fe7C3 and Fe3C, at 297-911Â K determined by in situ X-ray diffraction Thermal expansion of iron carbides, Fe7C3 and Fe3C, at 297-911Â K determined by in situ X-ray diffraction](/preview/png/7999272.png)
چکیده انگلیسی
The thermal expansion of Fe-carbides Fe7C3 and Fe3C was measured above and below the ferromagnetic transition in a temperature range of 297-911 K by in situ X-ray diffraction enhanced by synchrotron radiation. The coefficient of thermal expansion was estimated as α = a0 + a1T. The results for paramagnetic phases are a0 = 3.1 Ã 10â5 Kâ1 and a1 = 1.2 Ã 10â8 Kâ2 for Fe7C3 and a0 = 3.9 Ã 10â5 Kâ1 and a1 = 1.2 Ã 10â8 Kâ2 for Fe3C. The ferromagnetic phases show linear relations with V298K = 371.9 Ã
3, a0Â =Â 0.91Â ÃÂ 10â5Â Kâ1 and a1Â =Â 0 for Fe7C3 and V298KÂ =Â 155.2Â Ã
3, a = 0.86 Ã 10â5 Kâ1 and a1 = 0 for Fe3C. Our obtained results indicate that the coefficients of thermal expansion, that were calculated by high-pressure equations of state for Fe-carbides, appeared to be high-precision and consistent with the data obtained at 0.1 MPa.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 628, 15 April 2015, Pages 102-106
Journal: Journal of Alloys and Compounds - Volume 628, 15 April 2015, Pages 102-106
نویسندگان
Konstantin D. Litasov, Sergey V. Rashchenko, Alexander N. Shmakov, Yury N. Palyanov, Alexander G. Sokol,