关键词: CFRM, 高强度金属, 接触腐蚀, 缝隙腐蚀

Abstract: The experimental results show that on the contact boundary the galvanic corrosion and the crevice corrosion are presented while carbon fiber reinforced composite is coupled with high-strength aluminium alloy, or with titanium alloy, or with stainless steel, which are determined by a series of factors such as electrochemical properties, technological process, and enviromental situation. It is affected by the static electrochemical properties of these coupled material in open circuit (Ecorr) and the dynamic electrochemical properties in closed circuit of these couple materials, such as the galvanic current and the galvanic potential. In 3.5%NaCl solution the trand of the effect to galvanic corrosion of these couple materials is similar to that to crevice corrosion. The corrosion stability of the couple material between CFRM and anodized titanium, or between CFRM and anodized aluminium alloy through water and chromate sealing is satisfactory for demand on engineering criterion.

Key words: ice corrosmn carbon fiber reinforce composite, high-strength metals, contact corrosion, crew