石墨烯增强镍基粉末高温合金复合材料的力学性能

发布时间：2018-04-09 15:14

  本文选题：石墨烯　切入点：粉末高温合金　出处：《材料工程》2017年03期

【摘要】：采用湿混法将石墨烯纳米片分散到高温合金粉末中,并采用热等静压+热挤压+等温锻造+热处理的方法制备出FGH96镍基粉末高温合金。结果表明:石墨烯纳米片在高温合金中分散均匀,初步发现在后续的热工艺过程中并未发生变性;添加0.1%(质量分数)的石墨烯后,室温抗拉强度和屈服强度分别提高了58MPa和43MPa,塑性从21.0%提高到37.3%;650℃条件下抗拉强度和屈服强度分别提高了58MPa和28MPa,塑性从18.5%提高到26.5%。此外对石墨烯增强FGH96镍基高温合金力学性能的作用机制也进行了进一步分析。
[Abstract]:The graphene nanoparticles were dispersed into the superalloy powder by wet mixing method, and the FGH96 nickel base superalloy was prepared by hot isostatic pressing and isothermal forging heat treatment.The results show that graphene nanoparticles are uniformly dispersed in the superalloy, and no denaturation occurs in the subsequent thermal process, and the addition of 0.1 (mass fraction) graphene,The tensile strength and yield strength at room temperature increased 58MPa and 43MPa, respectively. The tensile strength and yield strength increased from 21.0% to 37.3 鈩，

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