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Iranian Journal of Materials Science and Engineering، جلد ۵، شماره ۴، صفحات ۱-۹
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عنوان انگلیسی A T.E.M INVESTIGATION OF THE MECHANISM OF EARLY STAGE ORDERING IN THE INTERMETTALIC COMPOUND PT2FECU
چکیده انگلیسی مقاله Abstract: The microstructural features of the early stage of ordering of the intermetallic compound Pt2FeCu have been examined using optical and transmission electron microscopy in conjunction with X-ray diffraction technique. It was found that the compound has similar morphological alteration to that of FePt in which the ordering cannot be suppressed by rapid quenching. The early stage of ordering transformation was initiated at temperatures above the critical value of 1178 oC, by a homogeneous nucleation of the intermediate short range ordered particles and ultra rapid directional-induced heterogeneous growth (burst type). As the result of these combined mechanisms, twin –related ordered domains have been formed which in turn minimize the strains produced by ordering reaction in polycrystalline material. The individual grain was divided up by different sizes of twin-related ordered domain bonded with {101} habit planes.
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نویسندگان مقاله m شاهمیری | m shahmiri
department of metallurgy and materials engineering , iran university of science amp;amp;technology, tehran, iran


s murphy | s murphy
2 metallury and materials engineering department, university of aston in birmingham,birmingham b4 7et, u.k
نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-3-36&slc_lang=en&sid=en
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Research paper
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