The effect of sulfuric acid, chromate acid and boric/sulfuric acid anodizing on fatigue performance of aeronautic aluminum alloys was studied by using S-N curve.

采用S-N曲线研究硫酸阳极化、铬酸阳极化和硼酸硫酸阳极化对航空铝合金疲劳极限的影响。

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This paper studies the effects of the sulfuric acid anodizing and chromic acid anodizing on the fatigue strength in the intermediate value life zone of LY12CZ plate and LC9CS bar.

研究了硫酸阳极氧化和铬酸阳极氧化工艺对LY 12 CZ板材、LC9CS棒材在中值寿命区疲劳强度的影响。

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The color reaction conditions of Cu 2+ and 1-(2-pyridylazo)-2-naphthol(PAN)were researched, and a new method was developed for the determination of copper in sulfuric acid anodizing liquor.

研究了铜与1-（2-吡啶偶氮）-2-萘酚（PAN）的显色反应，建立了测定硫酸阳极氧化液中铜的新方法。

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