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首页> 外文期刊>Journal of Materials Engineering and Performance >Aqueous Corrosion Behavior of Iron Aluminide Intermetallics
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Aqueous Corrosion Behavior of Iron Aluminide Intermetallics

机译：铝化铁金属间化合物的水腐蚀行为

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Iron aluminide intermetallics based on DO_3 ordered structure are being developed for use as structural materials and cladding material for conventional engineering alloys. Aqueous corrosion behavior of iron aluminides has been studied extensively by electrochemical techniques. Studies were carried out on pure Fe (99.9 percent), Fe-28A1 (at. percent), Fe-28Al-3Cr (at. percent), and AISI SS 304 so as to compare and contrast their behavior in same experimental condition. Polarization behavior under different pH conditions was examined to evaluate their performance in acidic, basic, and neutral solutions. Pitting behavior was also studied in solution containing Cl~(-1) ions. The stability of the passive film formed was studied by current time transients and potential decay profiles. The presence of 3 at. percent Cr in iron aluminides was found to improve the aqueous corrosion resistance and makes it comparable to AISI SS 304.
机译：正在开发基于DO_3有序结构的铝化铁金属间化合物，用作常规工程合金的结构材料和覆层材料。铝化铁的水腐蚀行为已通过电化学技术进行了广泛研究。对纯Fe（99.9％），Fe-28Al（原子百分数），Fe-28Al-3Cr（原子百分数）和AISI SS 304进行了研究，以比较和对比它们在相同实验条件下的行为。检查了在不同pH条件下的极化行为，以评估其在酸性，碱性和中性溶液中的性能。还研究了在含Cl〜（-1）离子的溶液中的点蚀行为。通过电流时间瞬变和电位衰减曲线研究了形成的无源膜的稳定性。在场3分。发现铝化铁中Cr的百分含量提高了耐水性腐蚀性能，使其与AISI SS 304相当。

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