邹豫,张剑平,罗军明

• 1:南昌航空大学材料科学与工程学院

摘要(Abstract)：

以TC4钛合金粉为基体,石墨烯(GNPs)为增强相,采用真空热压法制备了质量分数为0.3%的GNPs-Cu/Ti6Al4V复合材料。通过正交试验探讨了烧结温度、压力、保温时间对复合材料相对密度、显微硬度和抗压强度的影响。结果表明:烧结温度是影响复合材料相对密度、显微硬度和抗压强度的关键因素,压力和保温时间对其影响较小。最优的烧结工艺为温度1150℃、压力35 MPa和保温时间40 min,此时复合材料的相对密度、显微硬度和抗压强度最佳,分别为99.34%,585.4 HV0.1和2382 MPa。GNPs-Cu/Ti6Al4V复合材料中主要除α-Ti和β-Ti外,还存在TiC和Ti_2Cu相,在其压缩断口有较完整GNPs存在。

关键词(KeyWords)： GNPs-Cu/Ti6Al4V复合材料;真空热压烧结;正交试验;微观组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51764041)

作者(Author): 邹豫,张剑平,罗军明

DOI: 10.13289/j.issn.1009-6264.2021-0067

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