2結(jié)構(gòu)的第二相粒子明顯增加，同時(shí)還促進(jìn)了硅在第二相粒子周圍的偏聚，這可以阻止或延緩細(xì)小第二相粒子被氧化的進(jìn)程。進(jìn)一步采用相同合金成分制備的鋯管（Φ63.5 mm×10.92 mm），也呈現(xiàn)出了優(yōu)異的耐癤狀腐蝕和耐均勻腐蝕性能。;Nickel as a trace element was added into zirconium alloy (Zr-4) and then alloy sheet samples were prepared. The microstructure, corrosion property, and hydrogen content of the Zr-4 alloy were studied. Results show that the steam corrosion resistance at 400 °C can be greatly improved by adding nickel from 0.001wt% (the content in the sponge zirconium) to 0.005wt%, and there is no obvious effect on hydrogen absorption property. Trace nickel addition increases the content of the second phase particles in the form of Zr(Fe, Ni)2 obviously, and promotes the aggregation of silicon around second phase particles, which can prevent or delay the oxidation of fine particles. In addition, zirconium tubes (Φ63.5 mm×10.92 mm) with the same alloy component also exhibit excellent nodular corrosion resistance and uniform corrosion resistance."/>