蒋光锐,王海全,滕华湘

• 1:首钢集团有限公司技术研究院
• 2:绿色可循环钢铁流程北京市重点实验室
• 3:中国钢研科技集团先进金属材料涂镀国家工程实验室

摘要(Abstract)：

利用热浸镀工艺模拟器研究过时效工艺温度和气氛露点温度对C-M-Si高强钢选择性氧化的影响。使用场发射扫描电镜和能谱仪分析样品表面显微形貌以及成分,使用辉光放电光谱仪表征样品浅表层的元素深度分布,采用X射线光电子能谱仪确定样品表面的氧化物种类。结果表明:采用较高的过时效温度(350℃)和较高的气氛露点温度(-10℃),可以抑制Mn和Si在高强钢表面的选择性氧化,此时样品表面的化合物为无定型SiO_x、无定型MnO_x以及纯态Mn;随着气氛露点温度和过时效温度的降低,Mn和Si在样品表面的富集量明显增加,样品表面出现大量富含Mn和Si的颗粒状氧化物;气氛露点温度对样品表面合金元素富集峰值的影响比过时效工艺温度的影响更显著。

关键词(KeyWords)： 高强钢;选择性氧化;过时效处理;露点

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划(2017YFB0304305)

作者(Author): 蒋光锐,王海全,滕华湘

DOI: 10.13289/j.issn.1009-6264.2018-0135

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