Amini, R.Shamsipoor, A.Ghaffari, M.Alizadeh, M.Okyay, Ali Kemal2016-02-082016-02-0820131044-5803http://hdl.handle.net/11693/20812Mechano-synthesis of Fe-32Mn-6Si alloy by mechanical alloying of the elemental powder mixtures was evaluated by running the ball milling process under an inert argon gas atmosphere. In order to characterize the as-milled powders, powder sampling was performed at predetermined intervals from 0.5 to 192 h. X-ray florescence analyzer, X-ray diffraction, scanning electron microscope, and high resolution transmission electron microscope were utilized to investigate the chemical composition, structural evolution, morphological changes, and microstructure of the as-milled powders, respectively. According to the results, the nanocrystalline Fe-Mn-Si alloys were completely synthesized after 48 h of milling. Moreover, the formation of a considerable amount of amorphous phase during the milling process was indicated by quantitative X-ray diffraction analysis as well as high resolution transmission electron microscopy image and its selected area diffraction pattern. It was found that the α-to-γ and subsequently the amorphous-to-crystalline (especially martensite) phase transformation occurred by milling development.EnglishFe-Mn-Si shape memory alloysMechanical alloyingMicrostructureNanostructural/amorphous phasePhase transformationArgon gas atmospheresChemical compositionsElemental powder mixtureFe-mn-si shape memory alloysMorphological changesNanostructuralQuantitative x ray diffractionSelected area diffraction patternsArgonBall millingCerium alloysHigh resolution transmission electron microscopyManganeseMechanical alloyingMicrostructureMilling (machining)Nanocrystalline alloysPhase transitionsPowdersScanning electron microscopySiliconSilicon alloysX ray powder diffractionIron alloysArticle10.1016/j.matchar.2013.07.017