理化检验-物理分册2025，Vol.61Issue(11)：51-57,7.DOI:10.11973/lhjy-wl250129
涡轮叶片表面铝硅涂层凸起原因
Causes of Al-Si coating bulge on turbine blade surface
付计飞 1郎连林 2贾瑞东 1郑璐 1黄瀚川 1龚浪1
作者信息
- 1. 贵阳航发精密铸造有限公司,贵阳 550000
- 2. 中国人民解放军93147部队,贵阳 550014
- 折叠
摘要
Abstract
When an engine turbine blade was disassembled and inspected,it was found that there were abnormal convex features such as linear ridges,bulges and folds on the blade surface.The causes for aluminum-silicon coating bulge on the blade surface were analyzed by means of macroscopic test,metallographic examination,scanning electron microscopy and energy spectrum analysis,and simulation test.The results show that the blade has experienced high temperature conditions of 1 100～1 150℃.Under the combined action of working stress and high temperature,the Al-Si coating on the blade surface softened.During the high-speed rotation of the blade,the softened coating structure on the surface flowed,and finally formed abnormal protrusions such as linear ridges,bulges and folds on the blade surface.关键词
DZ417G合金/涡轮叶片/铝硅共渗/超温/铝硅涂层软化/涂层凸起Key words
DZ417G alloy/turbine blade/Al-Si co-permeation/overtemperature/softening of Al-Si coating/coating bulge分类
矿业与冶金引用本文复制引用
付计飞,郎连林,贾瑞东,郑璐,黄瀚川,龚浪..涡轮叶片表面铝硅涂层凸起原因[J].理化检验-物理分册,2025,61(11):51-57,7.
