摘要
研究了恒温剥蚀对ＬＣ４ＣＳ铝合金试样表面宏观形貌及截面微观结构的影响；测定了试样欧姆电阻、力学性能随剥蚀时间的变化。由欧姆电阻值计算所得试样的腐蚀速率，在剥蚀前期快速增大，４ ｈ 后逐渐下降至一定值。金相显微观察结果表明。
The effect of exfoliation on cross section and top surface is studied. It is also tested that the Ohmic resistance and the tensile strength of the sample vary with time. Corrosion rate of the sample, which is calculated from the Ohmic resistance, speedily increases at prophase of exfoliation, after 4 h and then it gradually drops to a fixed value. Metallographic observation test shows that the depression of tensile strength is mostly due to the variation of microstructure of aluminum alloy.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
1999年第5期575-579,共5页
Journal of Nanjing University of Aeronautics & Astronautics
关键词
腐蚀速度
剥离腐蚀
铝合金
微观结构
力学性能
corrosion rate
exfoliation corrosion
aluminum alloy
microstructure
tensile strength
