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中文摘要：
采用动电位极化、线性极化、扫描电镜和XPS分析研究了合金元素Sb（含1．0mass％）和Mn（含0．5mass％和1．0mass％）分别对工业纯Zn（99．95mass％）在0．1mol／LNaCI（pH6）和0．1mol／L NaCl＋0．1mol／LNa2SO4＋0．01mol／L NaHCO3（pH8．4）溶液中腐蚀行为的影响。结果表明，Sb主要以Zn—Sb金属间化合物形式存在于Zn中，而Mn除了形成Zn—Mn金属间化合物外，还有一部分固溶在zn基体中。在0．1mol／L Nacl溶液中，富Sb相的电化学活性比Zn低且对阴极氧还原反应没有明显的促进作用。富Mn相对阴极氧还原反应有轻微的促进作用，而固溶在Zn基体中的Mn能适当抑制阴极氧还原反应；添加1％Mn和0．5％Mn均对Zn的阳极溶解没有明显影响。在海洋大气环境的模拟溶液（0．1mol／L NaCI＋0．1mol／L Na2SO4＋0．01mol／L NaHCO3）中，0．5％Mn能显著提高Zn的耐蚀性能，其主要作用机制是少量的Mn能改变产物膜的致密性并影响离子的传输过程。
英文摘要：
The effects of alloying elements Sb（1 mass%）and Mn（0.5 mass% and 1 mass%）on the corrosion behaviour of Zn have been studied in 0.1 mol/L NaC1 and 0.1 mol/L NaC1 ＋ 0.1 mol/L Na2SO4 ＋ 0.01 mol/L NailCO3 solutions by potentiodynamic polarizations, linear polarization, scanning electron microscopy （SEM） investigations and X-ray photoelectron spectroscopy （XPS） analysis. The results indicate that Sb presents only in the Sb-rich intermetallic particles. Mn was found in both the Mn-rich intermetallic particles and the Zn matrix. In 0.1 mol/L NaCl solution, the Sb-rich intermetallic particle had lower anodic activity than Zn matrix and it was not the cathodic site for the pitting initiation. The Mn-rich intermetallic particle can slightly promote the cathodic reaction while Mn in solid solution can inhibit it. Both 1%Mn and 0.5%Mn additions had no significant effect on the anodic behaviour of Zn. In the simulated solution of marine environment （0.1 mol/L NaCl ＋ 0.1 mol/L Na2SO4 ＋ 0.01 mol/L NaHCO3）, 0.5%Mn can significantly increase the corrosion resistance of Zn through the mechanism that it can produce a more compact film and hinder ion migration through the pores in the film.
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