کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1571736 | 1000652 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of the carbides and the martensite phase in powder-metallurgy high-speed steel
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Characterization of the carbides and the martensite phase in powder-metallurgy high-speed steel Characterization of the carbides and the martensite phase in powder-metallurgy high-speed steel](/preview/png/1571736.png)
چکیده انگلیسی
A microstructural characterization of the powder-metallurgy high-speed-steel S390 Microclean was performed based on an elemental distribution of the carbide phase as well as crystallographic analyses. The results showed that there were two types of carbides present: vanadium-rich carbides, which were not chemically homogeneous and exhibited a tungsten-enriched or tungsten-depleted central area; and chemically homogeneous tungsten-rich M6C-type carbides. Despite the possibility of chemical inhomogenities, the crystallographic orientation of each of the carbides was shown to be uniform. Using electron backscatter diffraction the vanadium-rich carbides were determined to be either cubic VC or hexagonal V6C5, while the tungsten-rich carbides were M6C. The electron backscatter diffraction results were also verified using X-ray diffraction. Several electron backscatter diffraction pattern maps were acquired in order to define the fraction of each carbide phase as well as the amount of martensite phase. The fraction of martensite was estimated using band-contrast images, while the fraction of carbides was calculated using the crystallographic data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 61, Issue 4, April 2010, Pages 452-458
Journal: Materials Characterization - Volume 61, Issue 4, April 2010, Pages 452-458
نویسندگان
Matjaž Godec, Barbara Å etina BatiÄ, Djordje Mandrino, AleÅ¡ Nagode, Vojteh LeskovÅ¡ek, SreÄo D. Å kapin, Monika Jenko,