en Research Paper Research Paper Hot Workability and Processing Map of High Gd Content Mg-Gd-Zn-Zr-Nd Alloy Hot deformation behavior of homogenized Mg-4Sn binary alloy was studied using compression tests at the temperature range of 300-500 <img alt="" src="file:///C:/Users/ASUS/AppData/Local/Temp/msohtmlclip1/01/clip_image001.wmz" > &nbsp;and strain rates of 0.001-1s^-1. The material showed typical single peak flow behavior followed by a steady state flow as a plateau, which is more evident at the high value of Zener-Hollomon parameter. Constitutive analysis showed that in spite of the original Johnson-Cook (J-C), conventional strain compensated Arrhenius model based on Sellars-McTegart model has a reasonable agreement with the experimental data. Moreover, the well-known hyperbolic sine function fits the experimental data for predicting of the peak stress with a fair degree of accuracy. Magnesium alloys,Microstructure,Hot deformation,Constitutive model 1 14 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-3356-1&slc_lang=en&sid=1 Ata Abdi ataabdi68@gmail.com 1800319475328460015121 1800319475328460015121 No KN Toosi University of Technology Mehrdad Aghaie-Khafri maghaei@kntu.ac.ir 1800319475328460015122 1800319475328460015122 Yes KN Toosi University of Technology