原位自生TiB2/Al基复合材料的腐蚀防护技术研究现状

王浩伟, 赵德超, 汪明亮

A Review of the Corrosion Protection Technology on In SituTiB2/Al Composites

WANG Haowei, ZHAO Dechao, WANG Mingliang

图1 A356铝合金和不同TiB2含量复合材料的Nyquist图、Bode图、极化曲线以及极化后试样腐蚀形貌[15]

Fig.1 Nyquist (a) and Bode (b) diagrams of A356 alloy and TiB2/A356, polarization curves for A356 alloy and the composites with different contents of TiB2 (c); corrosive morphologies after polarization test for A356 alloy (d), 5%TiB2/A356 (e), and 15%TiB2/A356 (f); optical micrograph of cross-section of corroded composites (g), cross-section (h) and surface (i) of the magnified corrosion pit[15] (Z''—imaginary part of impedance, Z'—real part of impedance, |Z|—impedance modulus, θ—phase angle)