Binary Se78In22 and ternary Se78In22-xBix (x = 4, 8, and 12 at.%) compositions were synthesized using a melt quench technique. The amorphous nature of the synthesized samples was checked by X-ray diffraction analysis. Differential thermal analysis (DTA) has been used for studying kinetics of the glass transitions and crystallization in non-isothermal conditions at various heating rates. The present study revealed that the glass transition temperature \({T}_{\text{g}}\) , onset crystallization temperature \({T}_{\text{c}}\) , and peak crystallization temperature \({T}_{\text{p}}\) are influenced by both composition and heating rate. Analyzing the heating rate dependencies of \({T}_{\text{g}}\) and \({T}_{\text{p}}\) , the activation energies for glass transition \({E}_{\text{g}}\) and crystallization \({E}_{\text{c}}\) were determined using different methodologies. Lasocka's empirical equation explained the dependence of \({T}_{\text{g}}\) and \({T}_{\text{c}}\) on heating rate, and determination of theoretical crystallization temperature. The compositional dependence of the fragility index suggests that the ternary glasses with Bi addition are considered interesting materials and have good glass-forming properties. The transformation mechanisms were investigated through the Avrami exponent \(n\) values and growth dimensionality \(m\) . Based on the \(n\) values, crystallization mechanisms were identified as two-dimensional growth for Se78In22 composition and three-dimensional growth for Se78In22-xBix (x = 4, 8, and 12 at.%) compositions. Additionally, various kinetic parameters were derived from the study to further understand the crystallization process.
