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采用电化学方法研究了退火工艺对Fe73.5Cu1Nb3Si13.5B9纳米晶带材耐腐蚀性能的影响。用差热分析仪分析了该纳米晶带材的晶化过程,利用X射线衍射仪对经不同温度退火后的非晶带材的晶态结构进行了分析,并用恒电位法测试了样品在3.5%NaCl溶液中的耐腐蚀性能。结果表明,在3.5%NaCl溶液中,经过不同温度退火后的Fe73.5Cu1Nb3Si13.5B9纳米晶带材的耐腐蚀性能随退火温度的升高呈先增加后降低的趋势,其中530℃退火后的样品具有最好的耐蚀性。
The effect of annealing process on the corrosion resistance of Fe73.5Cu1Nb3Si13.5B9 nanocrystalline strip was studied by electrochemical method. The crystallization process of the nanocrystalline strip was analyzed by a differential thermal analyzer. The crystalline structure of the amorphous strip annealed at different temperatures was analyzed by X-ray diffractometer. The samples were tested by potentiostatic method at 3.5 Corrosion resistance in% NaCl solution. The results show that the corrosion resistance of Fe73.5Cu1Nb3Si13.5B9 nanocrystalline strip annealed at different temperatures in 3.5% NaCl solution firstly increases and then decreases with the increase of annealing temperature, and the sample annealed at 530 ℃ has the highest Good corrosion resistance.