吴占文,成鹏,符寒光

• 1:武警工程大学理学院
• 2:北京工业大学材料科学与工程学院

摘要(Abstract)：

研究了油冷淬火条件下,不同淬火温度对含8%Cr、1.5%B和1.5%Al的Fe-Cr-B-Al合金显微组织和性能的影响。结果表明,合金铸态组织由M2(B,C)(M=Fe,Cr,Mn)、(Cr,Fe)7(C,B)3、马氏体和珠光体组成。淬火处理后,硼碳化物出现了明显的孤立和团球化现象,导致合金抗拉强度和冲击韧性增加。淬火温度超过950℃时,基体转变成马氏体,导致合金硬度升高。淬火温度超过1050℃后,硼碳化物出现粗化现象。合金在1050℃淬火时,综合性能良好。

关键词(KeyWords)： Fe-Cr-B-Al合金;淬火处理;硼碳化物;基体组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51274016);; 北京市教委项目(KM201310005003);; 北京市自然科学基金(2142009)

作者(Author): 吴占文,成鹏,符寒光

DOI: 10.13289/j.issn.1009-6264.2014.05.022

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