测定了成膜前后加硼HA177-2铝黄铜的静态腐蚀速率、脱锌系数和电化学行为.用离子探针(SIMS)分析了铝黄铜表面膜的组成和深度分布.结果表明:表面膜中富集Zn、AI、B;退火形成的表面膜提高了铝黄铜在中性介质中的耐蚀性,但不能提高它在酸性介质中的耐蚀性能.
The corrosion rate, dezincification coefficient and polarization curves of boron modified HA177-2 brass with and without surface film were measured; the composition and elements depth distribu-tion of surface film were analyzed by SIMS. The results show t
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