4004/308/4004铝合金复合板耐腐蚀性能的试验研究  

Experimental Study on Corrosion Resistance of 4004/308/4004 Composite Plate

作　　者：张云龙[1] 金晓杰 张璇 李婷 冯博 ZHANG Yun-long;JIN Xiao-jie;ZHANG Xuan;LI Ting;FENG Bo(Northeast Light Alloy Co.,Ltd.,Harbin 150060;Suzhou Branch of Chalco Material Application Research Co.,Ltd.,Suzhou 215026,China)

机构地区：[1]东北轻合金有限责任公司,哈尔滨150060 [2]中铝材料应用研究院有限公司苏州分公司,苏州215026

出　　处：《铝加工》2020年第3期30-34,共5页Aluminium Fabrication

摘　　要：对434复合板芯材3003铝合金的化学成分进行优化,并采用盐雾腐蚀试验、光学显微镜等方法对工业化阶段生产的新型3×××系铝合金复合板与434复合板进行了对比试验。结果表明:434复合板的腐蚀特征表现为点蚀和晶间腐蚀,腐蚀速度较快。新型3×××系铝合金复合板的腐蚀特征表现为点蚀和均匀的层状腐蚀,腐蚀速度较慢,使其在恶劣的使用环境下具有更长的使用寿命。The chemical composition of core 3003 aluminum alloy of 434 composite plate was optimized.The salt spray corrosion test chamber and optical microscope were used to test and compare the new 3×××series aluminum alloy composite plate and 434 com⁃posite plate.The results show that the corrosion of 434 composite plate are pitting corrosion and intergranular corrosion,and the corro⁃sion rate is fast.The corrosion characteristics of the new type 3×××series aluminum alloy composite plate are shown as pitting corro⁃sion and uniform layered corrosion,and the corrosion speed is slow,so that it has a longer service life under harsh conditions.

关 键 词：新型3×××系铝合金复合板 434复合板 盐雾腐蚀试验 耐腐蚀性能 使用寿命 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG335.81[金属学及工艺—金属材料]