铝及其合金表面改性技术的研究与发展

铝及其合金材料具有质量轻、易加工、比强度高等优良特性,随着现代经济的高速发展,它在产量和用途上已成为仅次于钢铁的第二大金属材料.为了更好地体现其巨大价值,必须解决其硬度低、耐磨性差等缺点.因此铝及其合金的表面改性显得格外重要.综合了国内外近年来对铝及其合金表面改性技术的研究与应用情况,从电化学氧化法、化学转化技术、微弧氧化技术、等离子注入、冷喷涂技术和激光处理这几个方面对铝及其合金表面改性技术的发展状况进行了简要的综述,并展望了其研究前景.

Study and Development on Surface Modification Technology of Aluminum and Its Alloys

Aluminum and its alloys have the characteristics of light quality, easiness to machining, high specific strength and so on. As the high speed growth of modem economy, it has been the second metal material following steel on output and use. To further incarnate its huge merit, we must solve its defects as following: low hardness, bad wearable capability, etc. so the technology of surface modification for aluminum alloys is very important. The reseachs and applications of the technology of surface modification for aluminum alloys were synthetized at home and abroad in recent years, this technology was briefly summarized at the following aspects such as electro-oxidation method, chemical conversion technique, microarc oxidation technique, Plasma inpouring, cold spraying and laser treatment. The prospect of these technologies was also analyzed.