Industrial Radiography Testing & Technique (NDT)

Industrial Radiography Testing & Technique (NDT)

HARDEV

(Research Fellow)

Email: hardev.singh555@gmail.com

Under the Supervision of  DR. Rashmi Shrivastava, Professor

Department of Chemistry

IES UNIVERSITY BHOPAL

Abstract:

This paper provides the recent advances and researches about non-destructive testing   paper covers the review on the capabilities of NDT applications such as Visual Testing (VT), Ultrasonic Testing (UT), Radiographic Testing (RT), Electromagnetic Testing (ET), Acoustic Emission (AE) and Dye Penetrate testing( DPT) with respect to advantages and disadvantages of these methods. Further methods are classified on basis of their intrinsic characteristics and their applications. Mostly, an NDT evaluator uses only one non-destructive test method to perform the evaluation. If the scope of work is straight forward, using a single test method is acceptable. However, there are times when a single test method does not provide enough information about the material integrity And thereby combination of different methods is essential. Non destructive testing is widely applied in power plants, aerospace, nuclear industry, military and defiance, storage tank inspection, pipe and tube inspection and composite defects characterization. This paper mainly focuses on the scope of NDT application for composite materials The use of Industrial Radiography for examining the quality of Weld joints is very popular worldwide. In India, many welding activities like construction and laying the huge pipelines for gas and water transportation and distribution as well construction of storage tanks are performed. The objects are working under high pressure and therefore, it is important to produce the weld beads with high quality. Industrial radiography uses ionizing radiation to view objects in a way that cannot be seen otherwise. The method has grown out of engineering, and is a major element of Non destructive testing (NDT) to inspect materials for hidden flaws. The radiation caused by these facilities is very dangerous however, with the use of new technologies and proper protection, risks of injury and death associated with radiation can be greatly reduced. Radiographic Testing (RT) is widely used in industries, at airport for security checks, medical applications etc. to detect anomalies in materials and human bodies. Radiographic Testing is the common NDT methods used in the construction and fabrication industries for the oil & gas sectors using welding, gas/liquid transmission pipelines, casting foundries, and condition monitoring in existing oil & gas refineries and facilities. This paper will discuss radiographic testing sensitivity using industrial X-ray films mainly on welds and castings. No in-depth discussion in related science and physics, merely the perspective of an industrial radiographer based on his experience.

Keywords: IQI, Quantitative, Qualitative,  DIN- sensitivity, contrast, definition, geometric un-sharpness RT,UT MT DPT ET, NDT, TAEC,,AE ET  SFD LOP ,LOF,UNDER FIL UNDER CUT.