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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/9448

Title: 鐵鋁基合金之開發與應用研究---總計畫
Development and Applications of Fe-Al Based Alloys
Authors: 李丕耀;徐永富;吳建國;朱瑾;開物
Contributors: NTOU:Institute of Materials Engineering
國立臺灣海洋大學:材料工程研究所
Keywords: 鐵鋁基合金;氫脆;表面改質;熱機處理;腐蝕
Fe-Al base alloy;Hydrogen embrittleness;Surface modification;Thermal-mechanical treatment;Corrosion
Date: 1998
Issue Date: 2011-06-28T07:09:12Z
Publisher: 行政院國家科學委員會
Abstract: 本實驗是研究鐵鋁基合金在650.degree.C熔融碳酸鹽中的耐蝕性。實驗結果說明,Fe-40Al合金的腐蝕動力學為擴散機構所控制。鐵鋁基合金的重量損失隨著鋁含量的增加而降低,這是因為Fe-Al基合金的結構於25% Al含量時形成DO/sub 3/結構,而在36% Al含量時形成B/sub 2/規則相結構,隨著規則度的增加,鐵的擴散速率降低的緣故。Fe-Al基合金的表面腐蝕型態為沿晶腐蝕,添加Cr合金元素可提升其耐蝕性。
The corrosion resistance of Fe-Al alloys in a molten carbonate bath were investigated at 650.degree.C for different exposure time. The corrosion kinetics followed the parabolic rate law and controlled by diffusion mechanism in Fe-40Al alloy. Weight loss decreased with increasing the content of Al in Fe-Al alloys. Owing to the order structure of Fe-Al alloys the content of aluminum in Fe-Al alloys will decrease the outward diffusion of iron. The forms of corrosion of Fe-Al alloys were intergranular corrosion. The improvement of corrosion resistance of Fe-Al alloys can be obtained by the addition of chromium.
Relation: NSC87-2216-E019-004
URI: http://ntour.ntou.edu.tw/ir/handle/987654321/9448
Appears in Collections:[材料工程研究所] 研究計畫

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