| GH4169高温合金涡轮盘表面径轴向裂纹的渗透检测可行性 |
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| 引用本文： | 乔海燕,任学冬,史亦韦,陶春虎.GH4169高温合金涡轮盘表面径轴向裂纹的渗透检测可行性[J].航空材料学报,2016(6):92-96. |
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| 作者姓名： | 乔海燕 任学冬 史亦韦 陶春虎 |
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| 作者单位： | 北京航空材料研究院，北京100095; 航空材料检测与评价北京市重点实验室，北京100095 |
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| 基金项目： | 国防科工局技术基础科研项目(JSZL2014205B001) |
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| 摘 要： | 分别选用ZL-27A与ZL67渗透液对GH4169涡轮盘表面径轴向裂纹进行高灵敏度后乳化型与高灵敏度水洗型荧光渗透检测，超声波预清洗30 min后，渗透液浸渍与滴落60 min。利用体式镜和扫描电镜研究径轴向裂纹的宏观与微观特征。研究结果表明：GH4169高温合金涡轮盘在锻造过程中造成的表面径轴向裂纹，在高温下被表面氧化形成Cr2 O3为主的复杂氧化物层堵塞开口，使得渗透检测方法对其检出并不十分有效。
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| 关 键 词： | GH4169 涡轮盘 高温氧化 渗透检测 |
Feasibility of Penetrant Testing on Surface Axial-Radial Cracks of GH4169 Super Alloy Turbine Disk |
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| Abstract: | The post emulsifiable and water-washable fluorescent penetrant testing were carried out with ZL-27A and ZL67 respectively. Ultrasonic cleaning by detergent were used for 30 minutes before penetrant. The parts were immersed and drained for 60 minutes. The macroscopic and microscopic characteristics of cracks were researched using the split mirror and scanning electron microscope. The re-sults show that the outgrowth of high temperature oxidation plugs up the forging cracks. Thus the penetrant testing is not effective in de-tecting this type of cracks. |
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| Keywords: | GH4169 superalloy turbine disk high temperature oxidation penetrant testing |
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