铸铁在铝液中侵蚀机理的研究  

Investigation on Mechanism of Corrosion to Cast Iron in the Aluminium Melt

作　　者：王金洪[1] 

机构地区：[1]莱芜钢铁集团有限公司技术中心,山东 莱芜 271104

出　　处：《铸造技术》2000年第6期38-40,共3页Foundry Technology

摘　　要：研究了金相组织对铸铁耐铝液侵蚀性能的影响 ;利用X射线衍射分析和金相分析探索了铸铁在铝液中的侵蚀机理 ;黑色保护层的形成导致铸铁耐铝液侵蚀性能增强 ,石墨形态和珠光体基体影响铸铁耐铝液侵蚀速率 ;结果表明 ,片状石墨和细片状珠光体数量越多 。The influence of microstructure of cast iron on the corrosion resistance to aluminium melt has been investigated. The mechanism of the corrosion to cast iron in the melt aluminium has been researched by the XRD and the matallographic examination picture of the corroded cast iron. The black protective layer leads to increasing the corrosion resistance property of cast iron. It is shown that both graphite morphology and pearlite matrix structure influence the corrosion rate of cast iron. Results indicate that Enhancing the volume fraction of flaky graphite and slim flaky pearlite, the corrosion resistance property of cast iron will be improved.

关 键 词：铸铁 铝液 侵蚀 黑色保护层 片状石黑 金相组织 

分 类 号：TG25[金属学及工艺—铸造] TG143[一般工业技术—材料科学与工程]