Crystallization Behavior of Fe_(50−x)Cr_(15)Mo_(14)C_(15)B_(6)M_(x)(x=0,2 and M=Y,Gd)Bulk Metallic Glasses and Ribbons by in situ High Temperature X-Ray Diffraction  

作　　者：Badis Bendjemil Abderrezak Bouchareb Ahmed Belbah Jamel Bougdira Rafael Piccin Marcello Baricco 

机构地区：[1]LEREC,Department of Physics,University of Badji-mokhtar-Annaba,Algeria 2Department of Mechanical Engineering,Faculty of Science and Technology,University of 8 Mai 1945 Guelma,Algeria 3Institut Jean LAMOUR,University Henri poincarré,Nancy,France 4IFM/NIS,Universitàdi Torino,Via P.Giuria 9,10125 Torino,Italy

出　　处：《Chinese Physics Letters》2012年第10期235-238,共4页中国物理快报（英文版）

摘　　要：The effect of rare earth addition on thermal stability of Fe_(50−x)Cr_(15)Mo_(14)C_(15)B_(6)M_(x)(x=0,2 and M=Y,Gd)is studied.Thermal and structural properties are measured using differential scanning calorimetry and x-ray diffraction,respectively.The microstructure is observed by using a scanning electron microscope,and chemical composition is checked by energy dispersive spectroscopy analysis.The effect of high temperature on the isothermal crystallization of Fe_(50−x)Cr_(15)Mo_(14)C_(15)B_(6)M_(x)(x=0,2 and M=Y,Gd)bulk metallic glass and ribbons is investigated by high-temperature x-ray diffraction.It is found that the crystallization behavior of Fe_(50−x)Cr_(15)Mo_(14)C_(15)B_(6)M_(x)(x=0,2 and M=Y,Gd)bulk metallic glass strongly depends on the annealing temperature.The different crystallization behavior is believed to be due to the different structures that the metallic glass possesses at different temperatures.

关 键 词：microstructure CRYSTALLIZATION metallic 

分 类 号：TG1[金属学及工艺—金属学]