铝镁双金属反向等温包覆挤压棒材耐腐蚀性能

乔及森, 夏宗辉, 刘立博, 许佳敏, 刘旭东

Corrosion Resistance of Aluminum-magnesium Bimetal Composite Material Prepared by Isothermal Indirect Extrusion

QIAO Jisen, XIA Zonghui, LIU Libo, XU Jiamin, LIU Xudong

表2 3.5%NaCl溶液中材料的动力学规律

Table 2 Kinetic laws of the materials immersed in 3.5% NaCl solution

Material Kinetic law: y=b×t y / mg·cm-2 t / h 2A12 y=2×10-5x+0.0003 0≤t≤168 r2=0.9479 AZ31(BS) y=8×10-5x+0.0033 0≤t≤168 r2=0.4562 AZ31(ES) y=5×10-5x+0.0074 0≤t≤168 r2=0.7104 2A12/AZ31 y=2×10-5x+0.0001 0≤t≤168 r2=0.8751 Interface layer y=3×10-5x+0.0023 0≤t≤168 r2=0.97