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    A research team of AUST made important progress in the research of anti-wear performance of new titanium alloy surface for aviation gears
    2021-05-02 | BROWSE TIMES: | Edit:admin

    Recently, Associate Professor Zhu Yansong’s research teamfrom the School of Mechanical Engineering of our university has made important progress in the study of the anti-wear properties of the surface of TC21-DT, a new titanium alloy for aviation gears, and published a paper entitled "Tribological characteristics of the dual titanium boride layers (TiB2+TiB) on titanium alloy" in the TOP academic journal Ceramics International (IF=3.830, JCR Q1, CAS Partition I), issue 10, 2021.

    Uniaxial compression model for friction surfaces of double hard phase titanium boride infiltration layers

    In order to improve the wear resistance of titanium alloy surface for aviation gears, the team of Associate Professor ZhuYangsong used rare earth-boron solid co-infiltration method to strengthen the surface of new TC21-DT titanium alloy and prepared a double hard phase (TiB2+TiB) boronized titanium seepage layer on the surface of titanium alloy. On this basis, a uniaxial compression model of the seep surface based on Eshelby's equivalent entrainment theory and a wear model of the seep surface based on Archard's wear equation were established. The results of the study show that the rare earth-boron solid coextrusion strengthening can significantly improve the surface hardness and wear resistance of titanium alloy. The addition of appropriate amount of rare earth elements is beneficial to the increase of Ti-B phase nucleation rate, which leads to a significant strengthening effect of TiB whisker particles, thus further improving the wear resistance of the titanium alloy surface.

    Anhui University of Science and Technology is the first unit to complete thepaper. Associate Professor Zhu Yangsong is the first author and corresponding author of the paper, and Liu Yunfei (the second author of the paper), a master’s degree candidate(grade 2019), has done important work for the completion of the paper. This research work was supported by the Natural Science Foundation of Anhui Province (1908085ME133), the Key Project of Natural Science Foundation of Anhui Provincial Education Department (KJ2020A0284), and the Excellent Young Talents Program for Universities of Anhui Provincial Education Department (gxyq2017005).



    Written byZhu Yansong

    Reviewed byDeng Haishun

    Edited by Xia Yafeng

    Approved by Ruan Jinhua

    Translated by Wang Yijun


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