INFLUENCE OF QUENCHING CONDITIONS AND MICRO-ADDITION OF CERIUM ON THERMAL STABILITY OF AMORPHOUS Fe-B-Si ALLOYS
CHE Xiaozhou; ZHU Min; LI Zuxin(Department of Mechano-Electronic Engineering; South China University of Technology; Guangzhou 510641)DAI Lizhi(Central Iron and Steel Research Institute; Beijing 100081)Correspondent: CHE Xiaozhou;associate professor;Tel: (020)87111317
Cite this article:
CHE Xiaozhou; ZHU Min; LI Zuxin(Department of Mechano-Electronic Engineering; South China University of Technology; Guangzhou 510641)DAI Lizhi(Central Iron and Steel Research Institute; Beijing 100081)Correspondent: CHE Xiaozhou;associate professor;Tel: (020)87111317. INFLUENCE OF QUENCHING CONDITIONS AND MICRO-ADDITION OF CERIUM ON THERMAL STABILITY OF AMORPHOUS Fe-B-Si ALLOYS. Acta Metall Sin, 1998, 34(10): 1028-1032.
Abstract The influences of melt spun parameters and dricro-addition of cerium on thermal stability of amorphous Fe-B-Si alloys have been studied. The higher cooling speed foras-quenched amorphous ribbon, the more difficult for structural relaxation in low-temperatureannealing process. Experimental results show no direct relationship between the quenching condition and crystallization for Fe80B11.5Si8.5 metallic glass. Optimal addition of cerium obviouslyretard the ductile-to-brittle transition process in structural relaxation stage, when annealingtemperature is low. At high temperature annealing stage, the addition of cerium lowers the onsettemperature of crystallization; and this effect is in direct proportion to the content of cerium inribbons.
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