火山灰条件下TC4平板冲蚀磨损规律研究  

Erosion wear law of TC4 plates under volcanic ash condition

作　　者：杨晓军[1] 李沛燃 刘弋铭 柳笑寒 YANG Xiaojun;LI Peiran;LIU Yiming;LIU Xiaohan(College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China;Tianjin Institute of Aerospace Mechanical and Electrical Equipment,Tianjin 300301,China)

机构地区：[1]中国民航大学航空工程学院,天津300300 [2]天津航天机电设备研究所,天津300301

出　　处：《航空动力学报》2025年第2期223-232,共10页Journal of Aerospace Power

基　　金：中国民航大学中央高校基本科研业务费项目(3122019187)。

摘　　要：为了深入了解火山灰颗粒对TC4合金的冲蚀磨损规律,开展了火山灰颗粒不同速度、角度与浓度下的冲蚀磨损试验,基于试验数据拟合计算了适用于火山灰颗粒的E/CRC冲蚀模型参数,并建立数值仿真模型,验证了该冲蚀模型预测的准确性。结果表明:在控制单变量条件下,冲蚀率随火山灰颗粒运动速度增长而增大;随冲蚀角度增加先变大后减小,在30°左右达到最大冲蚀率;下料速率每分钟增加2 g,去除质量平均增加0.0123 g,而冲蚀率基本保持稳定。使用全新冲蚀模型仿真结果与试验结果比对较好,最大相对误差为9.475%,可以实现TC4合金受到火山灰颗粒冲蚀磨损的准确预测。In order to understand the erosion and wear law of volcanic ash particles on TC4 alloy,erosion and wear tests were carried out at different speeds,angles and concentrations of volcanic ash particles,and the parameters of E/CRC erosion model for volcanic ash particles were calculated based on the test data.The results showed that under the controlled univariate conditions,the erosion rate increased with the growth of the velocity of volcanic ash particles;the erosion angle increased and then decreased,and the maximum erosion rate reached at about 30°;the removal mass increased by 0.0123 g on average with an increase of 2 g per minute in the feed rate,while the erosion rate was kept stable.The simulation results using the new erosion model were in good agreement with the experimental results,and the maximum relative error was 9.475%,which can achieve accurate prediction of the erosion wear of TC4 alloy by volcanic ash particles.

关 键 词：TC4平板 火山灰 冲蚀率 颗粒速度 冲蚀角度 颗粒浓度 

分 类 号：V252[一般工业技术—材料科学与工程]