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Iranian Journal of Materials Science and Engineering، جلد ۱۳، شماره ۲، صفحات ۶۲-۷۲
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عنوان انگلیسی EXPERIMENTALl ANALYSIS OF PARTITION COEFFICIENT IN Al-Mg ALLOYS
چکیده انگلیسی مقاله Because the partition coefficient is one of the most important parameters affecting microsegregation, the aim of this research is to experimentally analyse the partition coefficient in Al-Mg alloys. In order to experimentally measure the partition coefficient, a series of quenching experiments during solidification were carried out. For this purpose binary Al-Mg alloys containing 6.7 and 10.2 wt-% Mg were melted and solidified in a DTA furnace capable of quenching samples during solidification. Cooling rates of 0.5 and 5 K/min were used and samples were quenched from predetermined temperatures during solidification. The fractions and compositions of the phases were measured by quantitative metallography and SEM/EDX analyses, respectively. These results were used to measure the experimental partition coefficients. The resultant partition coefficients were used to model the concentration profile in the primary phase and the results were compared with equilibrium calculations and experimental profiles. The results of calculations based on the experimental partition coefficients show better consistency with experimental concentration profiles than the equilibrium calculations.
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نویسندگان مقاله محمدحسین avazkonandeh gharavo | m h avazkonandeh gharavo
department of materials and polymer engineering, faculty of engineering, hakim sabzevari university, sabzevar, iran

سازمان اصلی تایید شده: دانشگاه حکیم سبزواری (Hakim sabzevari university)

m حداد سبزوار | m haddad sabzevar
department of materials science and engineering, faculty of engineering, ferdowsi university of mashhad, mashhad, p.o. box 91775-1111, iran

سازمان اصلی تایید شده: دانشگاه فردوسی (Ferdowsi university)

h fredriksson | h. fredriksson
department of materials science and engineering, royal institute of technology kth , brinellvägen 23, 100 44 stockholm, sweden
نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-25-1&slc_lang=en&sid=en
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده گروه مکانیکی و شکل دادن
نوع مقاله منتشر شده Research paper
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