Farklı tahribatsız muayene metodlarıyla malzeme hatalarının tesbiti
Defect determination by using different nondestructivetesting methods
- Tez No: 35654
- Danışmanlar: DOÇ. DR. BERİL TUĞRUL
- Tez Türü: Yüksek Lisans
- Konular: Fizik ve Fizik Mühendisliği, Physics and Physics Engineering
- Anahtar Kelimeler: Kalite kontrol, Malzeme hataları, Tahribatsız muayene yöntemleri, Quality control, Material fault, Nondestructive inspection methods
- Yıl: 1994
- Dil: Türkçe
- Üniversite: İstanbul Teknik Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Nükleer Uygulamalar Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
But at the same time we had to use surface methods. Because, these two volumetric methods weren't enought to determine the fine discontinuities on the surface of the parts, especially for thick parts. Xllla) X-ray radiography b) Gamma-ray radiography. In the ultrasonic testing the reference part should be inspected for four surfaces. For detailed inspection different probs were used in this inspection. However, all discontinuities in this reference part couldn't be determined easily. In the magnetic particles inspections, two different apparatus were used. These are coil type apparatus and yoke type apparatus. By using both of them, detailed knowledge about the discontinuities which were open to the surface could be taken. In liquid penetrant testing, about all discontinuities were detected apain on the surface. Moreover, this method is cheaper than magnetic particle method. If the fluoresant magnetic particles or fluoresant penetrant are preferred for the sensitive results, then the“black lamp”should be used for the evaluation. In here, emission rate and wavelenght of the ultraviolet rays from the black lamp is important for the sensitivity of the method. At the end of the inspections which contained five different techniques, since both the radiography and ultrasonic are volumetric methods, they gave“good”results for the whole of a part. Xll
Özet (Çeviri)
But at the same time we had to use surface methods. Because, these two volumetric methods weren't enought to determine the fine discontinuities on the surface of the parts, especially for thick parts. Xllla) X-ray radiography b) Gamma-ray radiography. In the ultrasonic testing the reference part should be inspected for four surfaces. For detailed inspection different probs were used in this inspection. However, all discontinuities in this reference part couldn't be determined easily. In the magnetic particles inspections, two different apparatus were used. These are coil type apparatus and yoke type apparatus. By using both of them, detailed knowledge about the discontinuities which were open to the surface could be taken. In liquid penetrant testing, about all discontinuities were detected apain on the surface. Moreover, this method is cheaper than magnetic particle method. If the fluoresant magnetic particles or fluoresant penetrant are preferred for the sensitive results, then the“black lamp”should be used for the evaluation. In here, emission rate and wavelenght of the ultraviolet rays from the black lamp is important for the sensitivity of the method. At the end of the inspections which contained five different techniques, since both the radiography and ultrasonic are volumetric methods, they gave“good”results for the whole of a part. XllBut at the same time we had to use surface methods. Because, these two volumetric methods weren't enought to determine the fine discontinuities on the surface of the parts, especially for thick parts. Xllla) X-ray radiography b) Gamma-ray radiography. In the ultrasonic testing the reference part should be inspected for four surfaces. For detailed inspection different probs were used in this inspection. However, all discontinuities in this reference part couldn't be determined easily. In the magnetic particles inspections, two different apparatus were used. These are coil type apparatus and yoke type apparatus. By using both of them, detailed knowledge about the discontinuities which were open to the surface could be taken. In liquid penetrant testing, about all discontinuities were detected apain on the surface. Moreover, this method is cheaper than magnetic particle method. If the fluoresant magnetic particles or fluoresant penetrant are preferred for the sensitive results, then the“black lamp”should be used for the evaluation. In here, emission rate and wavelenght of the ultraviolet rays from the black lamp is important for the sensitivity of the method. At the end of the inspections which contained five different techniques, since both the radiography and ultrasonic are volumetric methods, they gave“good”results for the whole of a part. XllBut at the same time we had to use surface methods. Because, these two volumetric methods weren't enought to determine the fine discontinuities on the surface of the parts, especially for thick parts. Xlll
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