孙宇凡,杨鹏辉,符寒光,林健,郭星晔

• 1:北京工业大学材料科学与工程学院

摘要(Abstract)：

研究了不同奥氏体化温度对高锰含碳化物等温淬火球墨铸铁(CADI)组织和性能的影响。结果表明:随着奥氏体化温度的升高,高锰CADI组织中的针状铁素体变粗大,数量减少,且会转变为羽毛状,同时弥散分布的碳化物会从网状转变为细小的颗粒状,并且残留奥氏体量及含碳量随奥氏体化温度升高而增加。高锰CADI的宏观硬度与耐磨性能随奥氏体化温度升高而降低,860℃时拥有最高的宏观硬度60 HRC和最少的磨损质量损失12 mg。

关键词(KeyWords)： 奥氏体化温度;含碳化物等温淬火球墨铸铁;显微组织;硬度;耐磨性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51775006)

作者(Author): 孙宇凡,杨鹏辉,符寒光,林健,郭星晔

DOI: 10.13289/j.issn.1009-6264.2020-0107

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