【摘要】 利用离子注入表面优化技术,在不同温度下,采用多能量叠加方式将碳离子注入纯铁表面;利用XRD和AES等技术分析了表面改性层的相结构以及元素的分布;利用电化学极化法测试了注入样品的抗腐蚀性能。结果表明,573K时注入的碳离子比373K时注入的碳离子深;纯铁表面改性层有Fe2C、Fe3C新相生成;离子注入碳提高了纯铁表面抗电化学腐蚀的能力。更多还原

【Abstract】 Carbon ions with overlapped energies were implanted into pure iron substrate at different temperatures.The phase structures and elemental compositions of the surface modified layers were analyzed by means of X-ray diffraction and Auger electron spectroscopy,while the corrosion resistance of the ion implanted pure iron samples was evaluated using electrochemical polarization method.The experimental results showed that the carbon ions could be implanted into the pure iron substrate with a larger depth at 573 K than at 373 K.The new phases such as Fe2C and Fe3C were formed in the modified surface of the ion-implanted pure iron samples,and the carbon ion implantation contributed to increasing the anticorrosion behavior of the pure iron substrate.更多还原