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实践经验
实践经验
DOI:10.11973/wsjc240136
腐蚀对叶片毛坯荧光渗透检测的影响
王晓英 1, 2, 3, 4 ,肖雄晖 1, 2, 3, 4 ,王树志 1, 2, 3, 4 ,高文博 1, 2, 3, 4 ,王 思 1, 2, 3, 4
(1. 中国航发北京航空材料研究院,北京 100095;2. 航空材料检测与评价北京市重点实验室,北京 100095;
3. 中国航空发动机集团材料检测与评价重点实验室,北京 100095;4. 材料检测与评价航空科技重点实验室,
北京 100095)
摘 要:针对某型导向叶片机加阶段荧光渗透检测时,非加工面发现夹杂、疏松等超标缺陷,导
致多批次叶片大量报废的问题,梳理分析了叶片在毛坯和机加阶段的工艺流程,使用扫描电镜观察了
正常吹砂工艺的叶片,分析了叶片腐蚀工艺对荧光检测结果的影响,最终确定毛坯阶段荧光渗透检测
前表面清理不彻底是机加阶段发现超标缺陷的主要原因。为此,在毛坯阶段荧光渗透检测终检工序
前增加了预腐蚀工序,显著提高了毛坯阶段叶片缺陷的检出率,降低了机加阶段的叶片报废率。
关键词:荧光渗透检测;导向叶片;夹渣;疏松;腐蚀
中图分类号:TG178;TG115.28 文献标志码:B 文章编号:1000-6656(2025)02-0088-05
Effect of corrosion on the fluorescent penetrant inspection of the blade blank
WANG Xiaoying 1,2,3,4 , XIAO Xionghui 1,2,3,4 , WANG Shuzhi 1,2,3,4 , GAO Wenbo 1,2,3,4 , WANG Si 1,2,3,4
(1. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China; 2. Beijing Key Laboratory of Aeronautical
Materials Testing and Evaluation, Beijing 100095, China; 3. Key Laboratory of Aeronautical Materials Testing and Evaluation,
Aero Engine Corporation of China, Beijing 100095, China; 4. Aviation Key Laboratory of Science and Technology on Materials
Testing and Evaluation, Beijing 100095, China)
Abstract: Aiming at the problem that excessive defects such as inclusion and porosity were found on the non-processed
surface during the fluorescence penetration test of a certain type of guide blade in the machining stage, leading to a large
number of discarded blades in multiple batches, the process flow of the blades in the blank and machining stages was
analyzed. The blades of normal sand blowing process were observed with scanning electron microscopy, and the influence
of blade corrosion process on the fluorescence detection results was analyzed. Finally, it is determined that incomplete
surface cleaning before fluorescence permeation detection in the blank stage is the main reason for the discovery of excessive
defects in the machining stage. Therefore, the pre-corrosion process was added before the final inspection process of
fluorescence permeation test in the blank stage, which significantly improved the defect detection rate of the blade in the
blank stage and reduced the scrap rate of the blade in the machining stage.
Key words: fluorescent penetrant inspection; guide blade; slag inclusion; loose; corrosion
导向叶片是航空发动机中的重要热端部件之一, 测方法为荧光渗透检测。一般在毛坯铸造阶段、机
其主要功能是将热能转化为动能,叶片在高温燃气 械加工阶段及使用后均需进行荧光渗透检测,以保
环境下工作,服役条件十分恶劣 [1-2] 。航空发动机导 证叶片表面质量符合设计图纸要求 。如果零件缺
[4]
向叶片的缺陷检测对飞机的飞行安全意义重大 。 陷未暴露至表面或缺陷开口被堵塞都可能造成渗透
[3]
目前航空发动机导向叶片表面缺陷最常见的检 剂无法渗入,导致缺陷无法检出 。
[5]
某型导向叶片在机加阶段荧光渗透检测时,非
收稿日期:2024-03-29 加工面发现超标夹渣、疏松等缺陷,导致多批次大
作者简介:王晓英(1990—),女,本科,主要从事航空材料表面无
量报废,造成零件生产周期延后和生产成本的浪费。
损检测技术的研究工作
通信作者:王晓英,18500557814@163.com 针对该问题,笔者梳理了叶片毛坯、机加阶段的工艺
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2025 年 第 47 卷 第 2 期
无损检测

