冯卫东,李明星,周博皓,吴明霞,杨刚

• 1:宜宾盈泰光电有限公司
• 2:四川大学机械工程学院

摘要(Abstract)：

针对铁钴合金高钴含量和均匀化过程缓慢导致的机械加工困难、所需后处理时间长的问题，利用多物理场活化烧结技术(Micro-FAST)制备了铁钴合金，并采用脉冲磁场处理技术对铁钴合金进行了改性处理，结合微观组织的分析，对脉冲磁场的作用效果进行了讨论。结果表明：脉冲磁场处理技术可以改善合金的晶界缺陷状态和晶内缺陷，促进错排原子移动至晶格点阵位置；经脉冲磁场处理后，铁钴合金的饱和磁化强度从197.38 emu/g提高到214.11 emu/g,提升约8.5%,矫顽力从62.85 Oe降低至51.38 Oe,降低约18.2%;同时改善了合金的残余应力状态，残余应力平均降低约8.62%。

关键词(KeyWords)： 铁钴合金;Micro-FAST;脉冲磁场;微观组织

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51675357)

作者(Author): 冯卫东,李明星,周博皓,吴明霞,杨刚

DOI: 10.13289/j.issn.1009-6264.2021-0641

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