宋光远,雷鹰,李雨,陶磊

• 1:安徽工业大学冶金工程学院
• 2:攀钢集团攀枝花钢铁研究院有限公司钒钛资源综合利用国家重点实验室
• 3:铜陵学院机械工程学院

摘要(Abstract)：

采用微波无压烧结技术制备了(TiB+TiC)/Ti复合材料。选用石墨粉和TiB_2作为增强相的C源和B源，通过球磨将其附着到Ti基体表面，烧结时与Ti基体发生反应，原位生成TiC和TiB增强相。为了避免红外测温精确度较低的弊端，使用微波功率和烧结时间作为变量，探索制备(TiB+TiC)/Ti复合材料的最佳条件，研究微波烧结工艺对复合材料微观结构和力学性能的影响。结果表明：1 kW功率下烧结27.5 min制备的复合材料力学性能最佳，极限抗压强度为1633 MPa,应变为34.88%,显微硬度为367 HV0.2;随着微波功率的增加，增强相发生粗化，复合材料的力学性能降低。复合材料的断口表面呈现出韧窝和解理面的混合断裂特征。

关键词(KeyWords)： 微波无压烧结;微波功率;烧结时间;微观结构;力学性能

Abstract:

Keywords:

基金项目(Foundation): 钒钛资源综合利用国家重点实验室开放基金课题(2021P4FZG10A)

作者(Author): 宋光远,雷鹰,李雨,陶磊

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