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研究了０５％Ｃｅ变质前后喷雾沉积高硅ＺＡ２７合金的组织与力学性能。喷雾沉积高硅ＺＡ２７合金的组织由富Ｓｉ相、光滑无特征区、细层片状共析体、粗层片状共析体所组成；加０５％Ｃｅ变质后，组织结构大大细化，主要由富Ａｌ、Ｃｅ亮点状相、富Ｓｉ、Ｃｅ多角形相以及细层片状共析体组成；显微硬度测量结果表明，Ｃｅ变质提高了材料的塑性，从而有利于高硅ＺＡ２７合金的推广应用。
The microstructure and mechanical properties of spray-deposited high-silicon ZA27 alloy before and after 05% Ce metamorphism were studied. The microstructure of spray-deposited high-silicon ZA27 alloy is composed of Si-rich phase, smooth and non-characteristic area, fine lamellar eutectoid and coarse lamellar eutectoid. When 05% Ce is modified, the microstructure is greatly refined , Mainly composed of Al-rich and Ce-rich phase, Si-rich and Ce polygonal phase and fine lamellar eutectoid. The results of microhardness measurements show that Ce metamorphism improves the plasticity of the material, which is in favor of high-silicon ZA27 alloy Promote the application.