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从高铬铸铁化学成分、显微组织及熔炼、铸造和热处理工艺等方面 ,综述了提高叶片性能和延长其使用寿命的研究现状
From the aspects of chemical composition, microstructure, melting, casting and heat treatment process of high-chromium cast iron, the research status of improving blade performance and extending its service life