利用热扩渗方式,以Co3O4纳米粉体做钴源,在低碳钢表面制备了Fe-Co合金层.研究了处理温度对合金层表面状态和结构的影响,并在3.5％ NaCl溶液中对合金层进行了腐蚀电化学研究.结果表明,处理温度高于800℃可在低碳钢表面形成厚度＞25μm,表面钴含量＞20％,并与基底形成冶金结合的Fe-Co合金层,合金层为单一铁固溶体相.通过在低碳钢表面制备Fe-Co合金层可以明显改善其在3.5％ NaCl溶液中的耐蚀性.
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