PRECIPITATION AND GROWTH OF GAMMA'-PHASES AND ETA-PHASES IN 53FE-26NI-15CR ALLOY

被引：28
作者：
KUSABIRAKI, K
TAKASAWA, Y
OOKA, T
机构：
[1] Faculty of Engineering, Toyoma University, Toyama, Toyama-ken, 930, Gofuku
[2] Toyama University, Kokusai Electric Co., Ltd., Tokyo, 105, Toranomon, Minato-ku
来源：
ISIJ INTERNATIONAL | 1995年 / 35卷 / 05期
关键词：
IRON BASE SUPERALLOY; PRECIPITATION; MORPHOLOGY; GAMMA PRIME; OSTWALD RIPENING; CELLULAR ETA PHASE; WIDMANSTATTEN ETA PHASE;
D O I：
10.2355/isijinternational.35.542
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The nucleation and growth behavior of gamma' and eta precipitates in A286 alloy was investigated by micro-Vickers hardness test and transmission electron microscopy. The morphology and the crystallography of them were also discussed. The hardness of A286 aged at 893-1 073 K for durations up to 720 ks was closely related to the mean size of gamma' precipitates. The growth kinetics of the gamma' precipitate in eta-phase free region was explained by Lifshitz-Slyozov-Wagner's theory for diffusion controlled growth at 993-1 073 K. The activation energy for the growth of the gamma' precipitates was estimated to be 283 kJ/mol.
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页码：542 / 547
页数：6
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