摘要
针对DD5单晶高温合金叶片在渗透检测过程中出现的大面积弥散的点状荧光显示进行了系统的分析,采用微观分析手段确认了叶片荧光显示的性质。并结合人工缺陷试样定量分析实际缺陷尺寸与荧光显示尺寸的相关性。结果表明DD5单晶合金叶片上大面积弥散点状荧光显示主要是由于腐蚀造成的,为单晶高温合金叶片的研制和荧光显示评判提供了参考数据。
The study is made of large numbers of dispersion indication discovered in the fluorescent penetrating inspection of DD5single crystal super alloy blade.And the substance of indication is validated in the microstructure analysis method.Meanwhile,the relation of size is quantitatively analyzed between original defect and indication.The result of study indicates that the dispersion indications discovered in the fluorescent penetrating inspection of DD5single crystal super alloy blade are caused by erode treatment.The reference data of study is supplied for the production of crystal super alloy blade and indication evaluation.
出处
《无损检测》
2014年第7期60-62,共3页
Nondestructive Testing
关键词
渗透检测
单晶
高温合金
腐蚀
荧光显示
Penetrating inspection
Single crystal
Super alloy
Erode
Fluorescent indication
