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Iranian Journal of Materials Science and Engineering، جلد ۲۱، شماره ۲، صفحات ۱-۱۲
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چکیده فارسی مقاله
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عنوان انگلیسی Synthesis and Characterization of Nanostructured (Fe80Ni20)1-xCrx(x= 0, 4) Alloys Using Mechanical Alloying and Density Functional Theory
چکیده انگلیسی مقاله
Mechanical alloying was employed to synthesize a nanostructured alloy with the chemical formula of (Fe80Ni20)1-xCrx (x= 0, 4). The microstructural and magnetic properties of the samples were investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), and a vibrating sample magnetometer (VSM). Additionally, theoretical calculations were performed using density functional theory (DFT) under the generalized gradient approximation (GGA). Simulations have demonstrated that an appropriate quantity of chromium (Cr) can dissolve within the BCC-Fe (Ni) structure, resulting in a favorable enhancement of the magnetic moment of the lattice. The XRD results indicated that after 96 hours of milling, Fe (Ni) and Fe (Ni, Cr) with a body-centered cubic (BCC) structure were formed. With increasing milling time, the grain size decreased while the microstrain increased. The saturation magnetization (Ms) of Fe80Ni20 composition increased up to 32 hours of milling, but further milling (up to 96 h) resulted in a decrease in the saturation magnetization However, for the (Fe80Ni20)96Cr4 powders, milling up to 64 h caused a reduction in Ms. The coercivity (Hc) trend was different and increased with longer milling times (up to 96 h) for both compositions.
 
کلیدواژه‌های انگلیسی مقاله Mechanical alloying,saturation magnetization,nanostructured alloy,density functional theory
نویسندگان مقاله | Seyed Farzad Dehghaniyan
Department of Materials Science and Engineering, School of Engineering, Shiraz University, Shiraz, Iran,


| Shahriar Sharafi
Department of Material Science and Engineering, School of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-5145-1&slc_lang=en&sid=1
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زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Other subjects
نوع مقاله منتشر شده Research Paper
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