Effect of Mo Addition on Nanostructured Ni50Al50 Intermetallic Compound Synthesized by Mechanical Alloying
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 28، شماره: 9
سال انتشار: 1394
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 434
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شناسه ملی سند علمی:
JR_IJE-28-9_010
تاریخ نمایه سازی: 15 آذر 1394
چکیده مقاله:
The mechanical alloying process was used to synthesize the Ni50Al50−xMox nanocrystalline intermetallic compound using pure Ni and Al elemental powder. This process was carried out in the presence of various Mo contents as a micro-alloying element for various milling times. Structuralchanges of powder particles during mechanical alloying were studied by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). Results showed that mechanical alloying in variouscombinations was completed after 48 h of milling time. Minimum crystallite size of the as-milledpowders (∼10 nm) was achieved after introducing Mo and milling for 128 h. Also, lattice strain decreased with increasing milling time up to 48 h and again increased after 48 h of milling time. On the other hand, the presence of Mo significantly affected variation intensity of the lattice parameter and morphology of the powder particles
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نویسندگان
a Khajesarvi
Department of Materials Science and Engineering, Shahid Bahonar Institute of Technology, Kerman
g Akbari
Department of Materials Science and Engineering, Shahid Bahonar Institute of Technology, Kerman