固液混合铸造Al-Cr合金的耐蚀性能研究  

Study on corrosion resistance of Al-Cr alloy prepared by solid-liquid mixed casting technology

作　　者：刘劲松[1,2] 陈振华[1] 蒲玉兴[1] 程相飞[1] 

机构地区：[1]湖南大学材料科学与工程学院,湖南长沙410082 [2]空军航空维修技术学院,湖南长沙410124

出　　处：《化学工业与工程技术》2010年第4期18-20,共3页Journal of Chemical Industry & Engineering

基　　金：国家自然科学基金(50274037)

摘　　要：采用固液混合铸造新技术制备了Al-10Cr合金,通过对固液混合铸造Al-10Cr合金的阳极极化曲线测定,考察了其腐蚀性能。结果表明,当加粉量为40%、粉末粒度为74～175μm时可获得均匀的细晶组织,且耐腐蚀性能优于不加粉半固态铸造Al-10Cr合金。Al-10Cr alloy is prepared by mixed liquid-solid casting.The corrosion behavior of Al-10Cr alloy prepared by solid-liquid mixed casting technology has been analyzed by potentiondynamic polarization curves.It is found that the alloy with uniformfine grain can be obtained under the conditions of 40% powder addition as well as powder granulannity of 74～175 μm.The results also show that the corrosion resistance of Al-Cr alloy prepared by solid-liquid mixed casting technology is superior to that of semisolid casting technologies.

关 键 词：固液混合铸造 AL-CR合金 耐蚀性能 

分 类 号：TG136.1[一般工业技术—材料科学与工程]