摘要
石墨烯与Ti60合金粉末经过球磨混合后,采用放电等离子烧结法(SPS)制备出石墨烯/Ti60复合材料,并在900℃对其进行热轧加工。采用扫描电子显微镜(SEM)、能谱仪(EDS)、金相显微镜和万能试验机对烧结态与轧制态Ti60合金、石墨烯/Ti60复合材料的微观组织和力学性能进行分析。结果表明:添加质量分数为0.1%的石墨烯能够减小复合材料原始β相尺寸,增大α相尺寸。经热轧加工后,石墨烯/Ti60复合材料在室温、600℃和700℃的抗拉强度分别为1353.0、746.6和391.7 MPa,相比Ti60合金分别提高了9.24%、9.46%和2.99%。
After graphene and Ti60 alloy powders were mixed by ball milling,the graphene/Ti60 composites were prepared by spark plasma sintering(SPS),and hot rolled at 900℃.The microstructure and mechanical properties of sintered and hot rolled Ti60 alloy and graphene/Ti60 composites were analyzed by scanning electron microscope(SEM),energy dispersive spectrometer(EDS),metallographic microscope and universal testing machine.The results show that adding graphene with a mass fraction of 0.1%can reduce the size of originalβphase and increase the size ofαphase of the composite.After hot rolling,the tensile strengths of graphene/Ti60 composites at room temperature,600℃and 700℃are 1353.0 MPa,746.6 MPa and 391.7 MPa,respectively,which are 9.24%,9.46%and 2.99%higher than that of Ti60 alloy,respectively.
作者
赵会宇
张媚
于佳石
孙国栋
Zhao Huiyu;Zhang Mei;Yu Jiashi;Sun Guodong(School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China;Xi’an Rare Metal Materials Institute Co.,Ltd.,Xi’an 710016,China;Northwest Nonferrous Metals Research Institute,Xi’an 710016,China)
出处
《钛工业进展》
CAS
2022年第2期29-32,共4页
Titanium Industry Progress
基金
陕西省自然科学基金资助项目(2020JC-50)。
关键词
钛基复合材料
石墨烯
显微组织
力学性能
titanium matrix composite
graphene
microstructure
mechanical properties
