سال انتشار: ۱۳۸۶

محل انتشار: دومین کنفرانس نانوساختارها

تعداد صفحات: ۲

نویسنده(ها):

Mohammad Zakeri – Materials engineering department, Islamic Azad University (Saveh branch),
Abbas Khanmohammadian – Materials engineering department, Islamic Azad University (Saveh branch

چکیده:

In this investigation, Fe3Mo3C ternary carbide has been synthesized from the elemental powders of 3Mo/3Fe/C by mechanical milling and heat treatment of mechanically activated powders. The structural evolutions of the powders were studied by X-ray diffraction (XRD). Results show that no phase transformation occurs during milling and the powders only activated. With increasing milling time to 70 hr no change takes place except grain size reduction to 9 nm and strain enhancement to 0.86 %. Heat treatment led to formation of Fe3Mo3C in the 70 hr milled sample at 700 C . With increasing temperature to 1100 C , two undesired phases (MoOC and Fe2C) form because of oxygen impurity of Argon. In the 10 hr milled sample that annealed at 700 C  no transformation takes place