采用单辊甩带法和非晶晶化法分别制备了Fe78Si13B9非晶薄带和Fe73.5 Si13.5 B9Nb3Cu1纳米晶薄带,并对两种铁基合金薄带在不同温度进行了退火处理,利用电化学极化曲线分别研究了两种合金在0.1 mol/L NaCl溶液中的电化学腐蚀行为及退火温度对两种合金在NaCl溶液中耐腐蚀性能的影响.结果表明:铁基纳米晶合金比非晶合金的耐腐蚀性要好;随着退火温度的升高,非晶及纳米晶合金的耐腐蚀性能都得到提高.
Amorphous Fe78 Si13 B9 and nanocrystalline Fe73.5 Si13.5 B9Nb3Cu1 ribbons were prepared by meltspinning and crystallizing processes respectively, and the Fe-based alloy ribbons were annealed at different temperatures. A comparative study of the electrochemical corrosion behavior of the two alloys had been performed by linear polarization curve method in 0.1mol·L-1 NaCl solution.The influence of annealing temperature on corrosion resistance was investigated. The results show that the Fe-based nanocrystalline alloys had better corrosion resistance than amorphous alloys, and the corrosion resistance of both amorphous and nanocrystalline alloys increased as annealing temperature increase.
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