周贤良,周伟,华小珍,叶志国,彭新元

• 1:教育部无损检测重点实验室
• 2:南昌航空大学材料科学与工程学院

摘要(Abstract)：

通过控制氮、氧混合气体中的氧含量,650℃保温30 min,在武钢510 L热轧带钢表面制备氧化皮。采用SEM、XRD、电化学测试方法研究了不同结构氧化皮的热轧带钢在3.5 wt%NaCl溶液中的腐蚀行为。结果表明,氧浓度5%时,所制备的氧化皮没有分层,只含有Fe3O4和Fe颗粒,厚度仅为6μm左右;氧浓度在10%～60%时,所制备的氧化皮结构均为表层Fe2O3较薄,中间层Fe3O4最厚,内层Fe3O4和Fe混合相。氧浓度10%时,其氧化皮厚度约15μm,表层Fe2O3量较少,与Fe3O4层界限模糊;当氧浓度>10%时,其氧化皮厚度均为20μm左右,与氧浓度10%相比,表层Fe2O3量略有增加,Fe2O3层与Fe3O4层界限分明;不同供氧条件下制备的热轧带钢氧化皮的耐蚀性能由好到差依次为:20%、10%、30%、60%、5%。

关键词(KeyWords)： 热轧带钢;氧浓度;氧化皮;耐蚀性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50871051);; 教育部无损检测重点实验室基金(ZD200729003);; 江西省教育厅重点实验室基金(GJJ2005-316);江西省教育厅基金(GJJ08519)

作者(Author): 周贤良,周伟,华小珍,叶志国,彭新元

DOI: 10.13289/j.issn.1009-6264.2010.07.007

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