李美霞,郭庆斌,谢娟,李永德,李静

• 1:河北工程大学装备制造学院
• 2:河北工程大学教务处
• 3:河北工程大学理学院

摘要(Abstract)：

采用化学液相法结合放电等离子烧结技术(SPS)制备氧化物弥散强化(ODS)铁基合金,将合金经过40%和70%变形量冷轧变形之后在900~1200℃进行保温60~150 min退火热处理,之后随炉冷却至室温。通过场发射扫描电镜(FE-SEM)和硬度仪观察并分析了合金的微观组织和再结晶行为。结果表明,采用化学液相法制备的(ODS)铁基合金微观组织均匀细小,平均晶粒度约10μm,纳米级的弥散相粒子均匀分布于基体中,其平均直径为20 nm,粒子间距为50~200 nm;开始再结温度超过900℃,再结晶温度在1000~1100℃之间;高形变量(70%)合金在1200℃及150 min保温后,晶粒尺寸均匀稳定性较好。

关键词(KeyWords)： 化学液相法;氧化物弥散强化;铁基合金;微观组织;再结晶

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51541403);; 河北省自然科学基金(E2015402146);; 河北省教育厅基金(QN20131168);; 邯郸市科技局基金(1328110085-2)

作者(Author): 李美霞,郭庆斌,谢娟,李永德,李静

DOI: 10.13289/j.issn.1009-6264.2016.s1.003

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