徐新进,谢飞,潘建伟

• 1:常州大学材料科学与工程学院
• 2:江苏省材料表面技术重点实验室
• 3:常州大学怀德学院

摘要(Abstract)：

通过一对平行电极对45钢试样与渗剂施加交流电场,进行交流电场增强粉末法铝硅共渗。通过分析对比电场增强粉末法铝硅共渗与常规铝硅共渗渗层的厚度、组织、微区成分、相结构及抗氧化性能,研究电场对45钢粉末法铝硅共渗的作用特性。结果表明:交流电场能够显著促进粉末法铝硅共渗,渗层厚度和硅含量随电场强度增加而增加,渗层相结构也发生相应变化,当渗扩温度≥650℃、电场电流≥0.5 A时,富铝相消失;常规工艺700℃共渗4 h的渗层厚度仅约24μm,但在电流为0.7 A的电场作用下,可获得约100μm厚渗层;900℃循环氧化试验表明,电场铝硅共渗试样的抗氧化性能远高于常规铝硅共渗试样。

关键词(KeyWords)： 粉末法铝硅共渗;交流电场;45钢;抗氧化性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51171032)

作者(Author): 徐新进,谢飞,潘建伟

DOI: 10.13289/j.issn.1009-6264.2016.01.039

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