机械科学与技术2024，Vol.43Issue(7)：1132-1141,10.DOI:10.13433/j.cnki.1003-8728.20240022
钛合金离心叶轮多工艺状态下的疲劳特性研究
Fatigue Performance of Titanium Alloy Centrifugal Impeller Under Multi-processing State
摘要
Abstract
The fatigue strength of centrifugal impeller is the result of the combined influence of the various characteristic quantities on the blade surface integrity.Different processing parameters lead to distinct states of blade surface integrity,resulting in various fatigue performance.the effects of the precision cutting and shot peening on the fatigue performance of TC11 centrifugal impeller blades is focused.By analyzing the fatigue strength data under different processing conditions of the blade,the impeller's structural features have been optimized and designed.The results show that the fatigue strength of the optimized impeller blade increased approximate 15%under the high-frequency fatigue testing at a cycle number of 3×107,which has an important guidance for optimizing the processing parameters and structural design of the new type centrifugal impeller.关键词
钛合金/离心叶轮/表面完整性/疲劳强度/形性优化Key words
titanium alloy/centrifugal impellers/surface integrity/fatigue strength/shape and property optimization分类
矿业与冶金引用本文复制引用
吴泽刚,王泽宇,于加辉,李靖..钛合金离心叶轮多工艺状态下的疲劳特性研究[J].机械科学与技术,2024,43(7):1132-1141,10.基金项目
中央高校基本科研业务费专项(D5000230081)、航空发动机及燃气轮机重大专项基础研究项目(J2022-VII-0005-0047)及国家资助博士后研究人员计划(GZC20233514) （D5000230081）
