文献类型：期刊文献

英文题名：Evaluation of preparation quality and wear state of TC4-based self-lubricating composite based on Lamb wave

作者：Li, Ben[1];Zhou, Hongyan[2];Xiang, Yanxun[1];Zhu, Wujun[1]

机构：[1]East China Univ Sci & Technol, Shanghai 200237, Peoples R China;[2]Nanyang Inst Technol, Sch Intelligent Mfg, 80 Changjiang Rd, Nanyang 473500, Peoples R China

年份：2022

卷号：31

外文期刊名：MATERIALS TODAY COMMUNICATIONS

收录：;EI(收录号：20222412232154);WOS:【SCI-EXPANDED(收录号:WOS:000818367400002)】；

基金：Acknowledgement This work was supported by the National Natural Science Foundation of China (Nos. 12025403, U1930202, 12004114 and 51835003) , and the China Postdoctoral Science Foundation (Nos. 2020M671015 and 2021M691014) .

语种：英文

外文关键词：TC4-based self-lubricating composite; Wear state; Friction surface; Lamb wave characteristic parameter

摘要：The evaluation of the preparation quality and wear state of TC4-based self-lubricating composite (TSLC) is complicated for a long time, and it is also difficult to judge quickly. Therefore, it is highly necessary to efficiently and accurately evaluate the preparation quality and wear state of TSLC. In this paper, experimental tests have been carried out on TSLC with different preparation qualities and wear states, and then the preparation quality and wear state of TSLC have been evaluated based on Lamb wave characteristic parameters (physical quantities incorporated into the state changes of the material microstructure). The results show that the Lamb wave characteristic parameter is proportional to the volume fraction of precipitates on the surface of TSLC. Taking the Lamb wave characteristic parameter corresponding to TSLC with qualified preparation quality as the reference characteristic parameter (1.26 e-2/mm), the rapid evaluation of TSLC with qualified or unqualified preparation quality can be realized. In addition, the wear state evaluation of TSLC based on Lamb wave characteristic parameter shows that the precipitate volume on the friction surface and the microcracks formed by internal stress concentration are the main factors that cause Lamb wave characteristic parameter to change.