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MY1401 NON-DESTRUCTIVE EVALUATION OF MATERIALS
1. BASIC CONCEPTS AND SURFACE INSPECTION
Concepts of Non-Destructive testing-relative mertis and limitations. Types of defects. Visual inspection, Liquid penetrant inspection - principles, practice, applications, advantages and limitations. Principles, applications and instrumentation of thermal inspection, Infrared Thermography. Industrial Computed Tomography (ICT).
2. RADIOGRAPHY
X-rays and Gamma rays. Properties of X-rays relevant to NDE. Absorption of rays, scattering, types and use of filters, screens, geometric factors, inverse square, law, film type and processing, characteristics of films - density, speed, contrast, Characteristic curves, Penetrameters, Exposure charts, radiographic equivalence, Gamma ray sources, characteristics of Gamma rays, Fluoroscopy, Xero – radiography, Radiography of pipes, welds and castings. Safety with X-rays and Gamma rays.
3. ULTRASONICS
Types of ultrasonic waves, principles of wave propagation, characteristics of ultrasonic waves, attenuation, Production of ultrasonic waves, Ultrasonic probes, couplants. Inspection methods-Pulse echo, Transmission and Resonance techniques. Types of scanning. Immersion testing, thickness measurement. Test block. IIW Standard and reference blocks, calibration in UT. Ultrasonic testing of welds and castings.
4. MAGNETIC PARTICLE AND EDDY CURRENT INSPECTION
Principles, applications, Magnetisation methods, magnetic particles. Dry technique and wet technique, demagnetization. Eddy current testing – principles, impedance diagrams, test coils and probes, inspection methods and applications.
5. OTHER TECHNIQUES
Holography and Acoustic emission technique. Pressure and leak testing. Condition monitoring of machines, Wear monitoring, Spark testing. Brief over view of Non-Destructive testing standards - ASTM, ISO, ASNT, API, ASME boiler and pressure vessel code. .
TEXT BOOKS
1. Barry Hull and Vernon John, “Non-Destructive Testing”, ELBS/Macmillan,UK,
1988.
2. Baldev Raj, Jayakumar T. Thavasimuthu M, “Practical Non-Destructive testing”, Narosa Publishing House, NewDelhi, 1997.
3. McGonnagle.W.T, “Non-Destructive testing”, McGraw-Hill Book Co, USA, 1988.
REFERENCES
1. ASM Metals Hand Book, “Non-Destructive Evaluation and Quality Control”, American Society of Metals, Metals Park ,Ohio, USA, 1989.
2. Louis Cartz, “Non-Destructive testing”, ASM International, Metals Park Ohio, USA, 1995.
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| Author: Vidya 23 May 2008 | Member Level: Diamond Points : 2 |
useful article
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