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Research on elastic properties of braided spring used in high temperature dynamic thermal barrier seals and service parameter optimization
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School of Material Science and Engineering,Tianjin University

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National Natural Science Foundation of China (51772203)

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    Abstract:

    In this paper, the effects of the compression, assembly and heat exposure temperature on the elastic properties of the braided spring using as the elastic support of thermal barrier seals were investigated systematically, and the reason for elastic failure of the braided spring on high temperature was also discussed. The results show that the oxidation of alloy is the main reason for reduced resiliency of braided spring on high temperature, and the resiliency of braided spring is more than 95% when the compression is less than 50% below 800℃, which indating that the as-prepared braided spring may have broad application prospects in aerospace thermal barrier.

    Reference
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[Xue Yunjia, Jia tao, Wang Ruitong, Xing Haimin, Liu Jiachen. Research on elastic properties of braided spring used in high temperature dynamic thermal barrier seals and service parameter optimization[J]. Rare Metal Materials and Engineering,2020,49(2):494~499.]
DOI:10.12442/j. issn.1002-185X. QH20190042

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History
  • Received:March 21,2019
  • Revised:May 09,2019
  • Adopted:October 23,2019
  • Online: March 12,2020