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摘要: 应用升温、等温和重复加热的DSC技术,对几种非晶合金的激波晶化和退火晶化作了对比研究。结果表明,尽管激波晶化时间极短,仅为退火晶化时间的10-6~10-8,但晶化度却极高,接近100%。激波晶化形成多种成分和结构的结晶相,形式上很像扩散性相变,然而其相变速率却是退火转变的千万倍,而且生成相十分稳定,这一现象用传统的固态扩散相变理论很难解释。激波晶化是一种新的晶化形式,是一种新的纳米合成技术。Abstract: Shock wave and annealing crystallization of amorphous alloys FeSiB, FeMoSiB and FeCuNbSiB were investigated by isothermal and non-isothermal DSC technique. It is found that shock wave crystallization is very perfect (fraction crystallized is very close to 100%) though the period of crystallization is very short, only about 10-6~10-8 of annealing's. Produced phases are different from the parent phase in structure and composition, shock wave crystallization is similar to the diffusion solid state phase transition in form, however, it is very difficult to explain the high velocity of transformation by the diffusion theory of solid state phase transition. Shock wave crystallization of amorphous alloy is a new method.
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Key words:
- amorphous alloy /
- shock wave /
- shock wave crystallization
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刘佐权, 赵鹤云, 吕毓松, 等. 激波诱导非晶合金Fe78Si13B9的晶化 [J]. 金属学报, 1996, 32(8): 862. 周效锋, 刘佐权, 刘应开, 等. Fe73. 5Cu1Nb3B9Si13. 5非晶合金的激波纳米晶化研究 [J] . 物理学报, 1999, 48(11): 2098-3002. 刘应开, 侯德东, 刘佐权, 等. 非晶Fe78B13Si9、(Fe0.99Mo0.01)78B13Si9激波晶化主相-Fe变化研究 [J] . 物理学报, 1999, 48(12): 2304-2307. LIU Ying-kai, ZHOU Xiao-feng, LIU Zuo-quan, et al. Experimental Studies on the Nanocrystallizations of Amorphous Fe78B13Si9 and (Fe0.99Mo0.01)78B13Si9 Alloys under Shock Wave [J] . Chinese Journal of High Pressure Physics, 1999, 13(3): 230-236. (in Chinese) 刘应开, 周效锋, 刘佐权, 等. Fe78B13Si9、(Fe0.99Mo0.01)78B13Si9 非晶合金的激波晶化实验研究 [J] . 高压物理学报, 1999, 13(3): 230-236. 刘佐权, 张远第, 刘贤, 等. FINEMET非晶合金激波晶化中Cu和Nb作用的失效 [J]. 金属学报, 2000, 36: 120-125. LIU Zuo-quan, ZHANG Yuan-di, LU Yu-song. Shock-Wave Nanocrystallization of Fe73.5Cu1Nb3Si13.5B9 Alloy and Its Characteristics [J] . Chinese Journal of High Pressure Physics, 2000, 14(4): 257-263. (in Chinese) 刘佐权, 张远第, 吕毓松, 等. 非晶合金Fe73. 5Cu1Nb3Si13. 5B9 的激波晶化及其特征 [J] . 高压物理学报, 2000 , 14(4): 257-263. 经福谦. 实验物态方程导引. 北京: 科学出版社, 1986. HE Hong-liang, JIN Xiao-gang, CHEN Pan-sen, et al. Experimental Studies on the Crystallization of Amorphous Fe40Ni40P12B8 Alloy under Shock Loading [J] . Chinese Journal of High Pressure Physics, 1989, 3(3): 211- 220. (in Chinese) 贺红亮, 金孝刚, 陈攀森, 等. Fe40Ni40P12B8 非晶合金的冲击晶化实验研究 [J] . 高压物理学报, 1989, 3(3): 211- 220.
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