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金属学报  1965, Vol. 8 Issue (3): 326-331    
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铁-钴(50%)合金中的自扩散
钱知强;高树浚;张沛霖
中国科学院金属研究所;中国科学院金属研究所;中国科学院金属研究所
SELF-DIFFUSION IN IRON-50% COBALT ALLOY
TSIEN CHIH-CHIANG;KAO SHU-CHUN;CHANG PEI-LIN Institute of Metal Research; Academia Sinica
引用本文:

钱知强;高树浚;张沛霖. 铁-钴(50%)合金中的自扩散[J]. 金属学报, 1965, 8(3): 326-331.
, , . SELF-DIFFUSION IN IRON-50% COBALT ALLOY[J]. Acta Metall Sin, 1965, 8(3): 326-331.

全文: PDF(419 KB)  
摘要: 用剩余强度法测定了Fe~(55)及Co~(60)在铁-钴(50%)合金中850--980℃α-区域内的自扩散系数,结果分别为 D_(Fe)=0.26 exp(—55,600/RT)厘米~2/秒, D_(Co)=14 exp(—65,000/RT)厘米~2/秒。 激活能测定数值与用准化学理论分析结果符合较好。
Abstract:The self-diffusion coefficients of Fe~(55) and Co(60) in iron-50% cobalt alloy in thetemperature range of 850-980℃ (α-region) have been measured by means of the"residual activity" method. The results are as follows: D_(Fe)= 0.26 exp(-55,600/RT) cm~2/sec, D_(Co)=14 exp(-65,000/RT) cm~2/sec. From quasi-chemical approach an approximate relationship between the activationenergies of self-diffusion in concentrated homogeneous solid solutions and those of self-diffusion and impurity diffusion in one of the components is derived as 7Q_(Fe)-3Q_(Co)=5Q_(Co)~0-Q_(Fe)~0. This relationship is found to be applicable in the Fe-50% Co alloy (α-region).
收稿日期: 1965-03-18     
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