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題名 | 檸檬酸和酒石酸對A390鋁合金鑄件陽極氧化膜之影響=Effect of Citric Acid and Tartaric Acid on the Anodizing Oxide Film of A390 Aluminum Alloy Casting |
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作者 | 胡瑞峰; 林易儒; 戴洋城; 張舜長; 林瑋; Hu, J. F.; Lin, Y. R.; Dai, Y. C.; Chang, S. C.; Lin, W.; |
期刊 | 鑄造工程學刊 |
出版日期 | 20161200 |
卷期 | 42:4=171 2016.12[民105.12] |
頁次 | 頁33-44 |
分類號 | 472.5 |
語文 | chi |
關鍵詞 | A390鋁合金; 檸檬酸; 酒石酸; 陽極處理; A390 aluminum alloy; Citric acid; Tartaric acid; Anodizing treatment; |
中文摘要 | 本研究針對高矽含量A390鋁合金之階梯型鑄件施以檸檬酸或酒石酸等有機酸陽極處理,探討不同厚度鑄件在不同陽極處理時間條件下,對其陽極氧化膜厚度與顏色之影響。研究結果發現A390鋁合金鑄件經檸檬酸或酒石酸陽極處理後的氧化膜厚度較大值出現於定電壓225V之陽極處理時間15分鐘時,且氧化膜厚度會隨著陽極處理時間或鑄件厚度之增加而增加。此外,隨著陽極處理時間之增加,A390鋁合金鑄件之檸檬酸或酒石酸陽極氧化膜顏色的CIE L*值亦隨之降低,同時CIE a*值與b*值也會降低。經由OM與SEM+EDS觀察分析後,發現A390鋁合金之檸檬酸陽極氧化膜為含有稀少裂縫的緊密狀形貌,而其酒石酸陽極氧化膜為具有許多裂縫的鬆散狀形貌。 |
英文摘要 | The aim of this study is to understand the effect of and anodizing time of citric acid or tartaric acid electrolytes on the anodic oxide film thickness and color of stepped castings made by A390 aluminum alloy with high silicon content. The results show that the larger oxide film thickness of A390 aluminum alloy casting anodized by citric acid or tartaric acid was obtained at the condition with the condition of anodized time of 15minutes at a fixed anodizing voltage of 225 volts. The oxide film thickness was increased with the increase of anodizing time or casting thickness. In addition, with the increase of anodizing time, the CIE L*, a* and b* values of color on oxide film were reduced. Through OM and SEM + EDS observations, the oxide film of A390 aluminum alloy casting anodized by the citric acid revealed to be a dense morphology with few cracks. However, the oxide film for tartaric acid revealed to be a loose morphology with many cracks. |
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