en گروه مکانیکی و شکل دادن Mechanical Performance and Formability of Materials Research Paper Research Paper <p dir="ltr" style="text-align: justify;">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.</p> <p dir="ltr" style="text-align: justify;"><img alt="AWT IMAGE" src="./files/site1/images/4.png" style="width: 250px; height: 250px;" ></p> Partition Coefficient, Microsegregation, Al-Mg Alloys, Differential Thermal Analysis 62 72 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-25-1&slc_lang=en&sid=1 M.H. Avazkonandeh-Gharavo 180031947532846003982 180031947532846003982 No Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar, Iran M. . Haddad-Sabzevar haddadm@um.ac.ir 180031947532846003983 180031947532846003983 Yes Department of Materials Science and Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, P.O. Box: 91775-1111, Iran H. Fredriksson 180031947532846003984 180031947532846003984 No Department of Materials Science and Engineering, Royal Institute of Technology (KTH), Brinellvägen 23, 100 44 Stockholm, Sweden