湿法磷复肥生产中料浆泵叶轮承受着极为苛刻的腐蚀磨损环境．影响叶轮破坏的因素很多，既有材料本身的因素，又受介质环境因素的很大影响，两方面因素相互交织，相互促进，使得这一问题复杂化．本文基于对这一问题诸多方面的系统研究后指出：在湿法磷复肥生产介质条件下料浆泵叶轮的失效以腐蚀为主，磨损为辅的机理． Slurry pump impeller in the production of wet-process phosphate compound compound suffers extremely harsh environment of corrosion and wear. Many factors affect the destruction of impeller, both the material itself factors, but also greatly influenced by the media environment, the two factors intertwined, promote each other, making the issue complicated. Based on a systematic study of many aspects of this issue, this paper points out that the failure of the slurry pump impeller is dominated by corrosion and the wear is supplemented by the medium of wet-process phosphate compound production.