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Effect　of　Microadditional　Cerium　on　annealing　embrittlement　of　Fe－B－Si　Amorphous　Alloy

Journal of Rare Earths 1996年第1期14卷 30-35页

作者：曹兴国车晓舟戴礼智 Department of Materials Engineering Luoyang Institute of Technology Luoyang 4711039 China Beijing Central Iron and Steel Research Institute Beijing 100081 China

it is reported in literature those the effect of microadditional cerium on annealing embrittlement of Fe-B-Si amorphous alloy is negligible even *** test result of present paper shows that the annealing embrittlement temperature of Fe76B15Si9 can be increased by 80℃after cerium has been *** cause of the divergence of the test result from those in the literature was *** condition with the positive effect of microadditional cerium on annealing embrittlement temperature of Fe-B-Si amorphous alloy was *** reason why microadditional cerium may be ineffective even negative on annealing embrittlement temperature was preliminarily elucidated.

关键词： Microadditional cerium Fe-B-Si amorphous alloy annealing embrittlement

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PHOSPHORUS SEGREGATION AND annealing embrittlement OF Ni-P AMORPHOUS

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Acta Metallurgica Sinica(English Letters) 1991年第8期4卷 103-107页

作者： Qu Zhe XIE Tiansheng Institute of Metal Research,Academia Sinica,Shenyang,China Acad Sinica Shenyang China

Phosphorus segregation and embrittlement of Ni-P amorphous annealed at the temperatures below crystallization have been *** phosphorus enrichs on free surface and its level increases with annealing *** is fairly coincident with the measured toughness which decreases with annealing *** ion-sputtering revealed that a phosphorus depletion zone in the subsurface layers forms due to element redistribution during *** thickness and amplitude of the phosphorus depletion zone depend on the an- nealing temperature. The formation of depletion zone and the mechanism of embrittlement of Ni-P amorphous during annealing have been discussed based on the theory of the activation energy of atomic diffusion in the amorphous being variable.

关键词： Ni-P amorphous phosphorus segregation annealing embrittlement

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Study on annealing Embritlement of Fe-B-Si Amorphous Alloy

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Journal of Iron and Steel Research(International) 1997年第2期4卷 29-34页

作者： Cao XingguoLuoyang Institute of Technology, Luoyang (471039), China, Guo Zechen ①, Che XiaozhouSouth China University of Technology, Guangzhou (510641), China, Liu Ping ①, Yin Biao ① Luoyang Institute of Technology Luoyang (471039) China South China University of Technology Guangzhou (510641) China

The law and activation energy of annealing embrittlement for three kinds of popular Fe B Si amorphous alloys have been studied. For comparison, the crystallization activation energy (CAE) of these alloys was measured by XRD equal first peak height method and conventional Kissinger method. The structural relaxation activation energy (SRAE) of these alloys was measured by Curie temperature method or internal friction method. Through the comparison and analysis of the activation energies of annealing embrittlement, crystallization and structural relaxation, the related influencing factors on annealing embrittlement of Fe based amorphous alloys are elucidated.

关键词： annealing embrittlement amorphous alloy Kissinger method activation energy

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