黄晓冬,宋延沛

• 1:河南科技大学材料科学与工程学院
• 2:有色金属共性技术河南省协同创新中心

摘要(Abstract)：

采用原位反应铸造法制备出碳化物颗粒混杂增强钢基复合材料,并采用力学性能试验机、光学显微镜、带能谱的扫描电镜和XRD等检测手段研究了淬火温度对复合材料组织、性能的影响。结果表明:复合材料的硬度随淬火温度的升高而逐渐降低,冲击韧性随淬火温度的升高先增加后降低。920℃淬火处理后复合材料综合力学性能最好,硬度值达到54.3 HRC,冲击韧性值达到9.0 J·cm~(-2)。较860℃淬火硬度值降低了6.5%,而冲击韧性值提高了114.3%。复合材料的组织为片状马氏体、VC和(Ti·V)C颗粒。热处理后的复合材料的断裂形式为解理断裂,铸态试样断裂类型为沿晶断裂。

关键词(KeyWords)： 淬火温度;原位自生;钢基复合材料;组织性能

Abstract:

Keywords:

基金项目(Foundation): 洛阳市重点科技项目(1301011A-2)

作者(Author): 黄晓冬,宋延沛

DOI: 10.13289/j.issn.1009-6264.2017-0044

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