腐蚀对叶片毛坯荧光渗透检测的影响  

Effect of corrosion on the fluorescent penetrant inspection of the blade blank

作　　者：王晓英 肖雄晖 王树志 高文博 王思 WANG Xiaoying;XIAO Xionghui;WANG Shuzhi;GAO Wenbo;WANG Si(AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation,Beijing 100095,China;Key Laboratory of Aeronautical Materials Testing and Evaluation,Aero Engine Corporation of China,Beijing 100095,China;Aviation Key Laboratory of Science and Technology on Materials Testing and Evaluation,Beijing 100095,China)

机构地区：[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

出　　处：《无损检测》2025年第2期88-92,共5页Nondestructive Testing

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。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.

关 键 词：荧光渗透检测 导向叶片 夹渣 疏松 腐蚀 

分 类 号：TG178[金属学及工艺—金属表面处理] TG115.28[金属学及工艺—金属学]