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Jagadeesh, S.
- Inservice Inspection of Cladding Using Phased Array Ultrasonic Testing System
Abstract Views :314 |
PDF Views:4
Authors
S. Jagadeesh
1,
S. Kumanan
1
Affiliations
1 Department of Production Engineering, National Institute of Technology, Tiruchirappalli, IN
1 Department of Production Engineering, National Institute of Technology, Tiruchirappalli, IN
Source
Manufacturing Technology Today, Vol 17, No 3 (2018), Pagination: 3-8Abstract
Cladding is process of coating of low alloy base with high alloy overlay to safeguard the base metal from corrosive fluids and fumes. Conventional ultrasonic testing is used to detect flaws in cladding and to enhance the quality of the product during the manufacturing stage. When the component is put to operation, miniscule flaws could propagate due to high working temperatures and pressures thereby reducing the service life of the product. Process plants and nuclear power plants undergo periodic in-service inspection to verify the integrity of components using NDE technique. Conventional ultrasonic testing is limited in application and Phased array ultrasonic testing (PAUT) as an advanced NDE technique could be a viable alternative. This paper details about the application of PAUT to detect a variety of bonding layer flaws in in-service inspection of cladded components.Keywords
Cladding, NDE, UT, PAUT.
References
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- Davis, J Mark and Moles, Michael: Phased Arrays vs. Phased Arrays – Beam Sweeping vs. Encoded Data Collection, NDT.net - www.ndt.net - Document Information: www.ndt.net/search/docs.php3?id=4807 Accessed on 21/01/2017
- Challenges for Effective Implementation of National Resource Efficiency Policy 2019
Abstract Views :431 |
PDF Views:128
Authors
Affiliations
1 Karnataka State Natural Disaster Monitoring Center, Major Sandeep Unikrishnan Road, Yelahanka, Bengaluru 560 064, IN
1 Karnataka State Natural Disaster Monitoring Center, Major Sandeep Unikrishnan Road, Yelahanka, Bengaluru 560 064, IN
Source
Current Science, Vol 117, No 12 (2019), Pagination: 1941-1942Abstract
Compelled by the growing economy, India is extracting resources @ 1580 tonnes/acre, much higher than the world average of 450 tonnes/acre with a low recycling rate at 25% only. Together, economy and consumption patterns are expected to double the demand for materials from the current 7 billion tonnes by 2030, leading to several ecological and economic backlashes. To prevent such a situation, the Government of India has proposed a draft Resource Efficiency Policy and sought suggestions from stakeholders. This contribution aims for a wider dissemination of information about the Draft Policy and also suggestions by the authors for effective implementation of proposed policy.Full Text
References
- United Nations, EU, FAO, IMF, OECD, and The World Bank. Systems of Environmental– Economic Accounting 2012; Central Framework, 2014; http://unstats.un.org/unsd/envaccounting/seea-Rev/SEEA_CF_Final_en.pdf
- MoEF, Draft of National Resource Efficiency Policy 2019. Ministry of Environment, Forests and Climate Change, Government of India; http://moef.gov.in/wp-content/uploads/2019/07/Draft-NationalResourc.pdf (assessed on 5 August 2019).
- International Resource Panel, Assessing global resource use: A systems approach to resource efficiency and pollution reduction. Bringezu, S., Ramaswami, A., Schandl, H., O’Brien, M., Pelton, R., Acquatella, J., Ayuk, E., Chiu, A., Flanegin, R., Fry, J., Giljum, S., Hashimoto, S., Hellweg, S., Hosking, K., Hu, Y., Lenzen, M., Lieber, M., Lutter, S., Miatto, A., Singh Nagpure, A., Obersteiner, M., van Oers, L., Pfister, S., Pichler, P., Russell, A., Spini, L., Tanikawa, H., van der Voet, E., Weisz, H., West, J., Wiijkman, A., Zhu, B., Zivy, R. A Report of the IRP. United Nations Environment Programme. Nairobi, Kenya, 2017.
- NITI Aayog, Strategy on resource efficiency, Government of India, New Delhi, 2017.