CAJ | 학술논문

将纳米化Zr-4合金和普通Zr-4合金进行水腐蚀并得到腐蚀面的SEM,利用计算机图像处理技术提取金属/氧化膜界面形貌图,并研究腐蚀界面形貌的分形特征.研究表明:纳米化Zr-4合金的腐蚀产物更具有保护性,其抗腐蚀性能优于普通Zr-4合金:腐蚀界面的分形分维变化说明纳米化Zr-4合金和普通Zr-4合金腐蚀规律不同,并从分形的角度上进一步揭示纳米化Zr-4合金的腐蚀机理.
장납미화Zr-4합금화보통Zr-4합금진행수부식병득도부식면적SEM,이용계산궤도상처리기술제취금속/양화막계면형모도,병연구부식계면형모적분형특정.연구표명:납미화Zr-4합금적부식산물경구유보호성,기항부식성능우우보통Zr-4합금:부식계면적분형분유변화설명납미화Zr-4합금화보통Zr-4합금부식규률불동,병종분형적각도상진일보게시납미화Zr-4합금적부식궤리.
Nanocrystalline Zr-4 alloy and common Zr-4 alloys were corroded by water and the SEM of etched surface was obtained. The morphology of metal/oxide film interface was extracted from SEM by computer image processing technique. Fractal characteristic of corrosion interface morphology was calculated to explain the nancrystalline Zr-4 alloy corrosion mechanism. It was found that the corrosion resistance of nanerystalline Zr-4 alloy was superior to that of common Zr-4 alloy. Fractal and fractal dimension of corrosion interface of nancrystalline Zr-4 alloy was different from that of common Zr-4 alloy. The corrosion mechanism of nanocrystalline Zr-4 alloy was further revealed by fractal method.