个人信息Personal Information
学历：博士研究生毕业
学位：工学博士学位
性别：男
学科：力学. 航空宇航科学与技术. 材料科学与工程. 机械工程. 冶金工程. 先进制造. 航空工程. 材料工程. 冶金工程. 机械工程. 固体力学
多尺度力学，宏微观力学，梯度结构材料，界面力学，固体本构关系，应变梯度理论，晶体塑性有限元，离散位错动力学，分子动力学，高熵合金，大数据与机器学习，材料基因，极端力学，高性能材料，材料的增强与增韧
2022-02-02 合作论文“Effects of thermal aging on mechanical properties and microstructures of an interstitial high entropy alloy with ultrasonic surface mechanical attrition treatment”在Materials Science and Engineering: A在线发表
发布时间：2022-02-02
Abstract
In this work, indentation tests have been carried out on the surface of an interstitial high-entropy alloy, which is treated with ultrasonic surface mechanical attrition treatment and thermal aging treatment at 400 °C. We present and discuss these two treatments on the mechanical behavior of the material by using flat indentation method. Meanwhile, changes in its microscopic morphology, grain size, phase structure, etc. are investigated using X-ray diffraction, electron backscatter diffraction, etc. and its microstructure evolution mechanism under the long-term high temperature condition is revealed. Flat indentation tests and microstructural investigations reveal that the mechanical behavior of interstitial high entropy alloy is significantly affected by surface mechanical attrition treatment and thermal aging time. The gradient refined and strengthened surface layers are demonstrated to appreciably upgrade the mechanical performance of interstitial high entropy alloy, while thermal aging treatment will lead to a reduction of mechanical performance and a phase transformation.
Link
https://doi.org/10.1016/j.msea.2022.142755