Improving crack resistivity in Al alloy pressure vessels by FSW

• Autorzy: Lenin A. W. A. , Nagaraj P. , Lincy G.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Fuel or oil transmission pipelines are made with light metal alloys to prevent corrosion and to provide a better safety record. This is achieved by the combination of perfect design, selection of materials and functioning practices. However, like any engineering structure, these lines also fail occasionally. Major cases of such failure it induces due to external interference or corrosion or due to manufacturing defects; so such of defects if they were detected before failure and that can be treated to avoid failure or the life time can be improved. Design/methodology/approach: In this study an aluminum alloy sample with micro crack was treated with FSW process with ZN powder. And studies were carried out against both treated and untreated samples with cracks. Findings: From the studies it is clear that FSW treatment over surfaces will reduces the crack initiation in light metal alloy structures. The process can be done before or after installation. Research limitations/implications: The results were recorded and suggested FSW as a best process for crack treatment in Al alloys. Especially in pressure lines or pressure vessels. Originality/value: Friction stir welding (FSW) is a solid-state metal joining process. This is energy efficient, ecofriendly, and versatile light metal joining technique. In particular, high-strength aerospace aluminum alloys can be welded by using this technique. This will produces high harden joints in light metals as just like conventional arc welding techniques. It is considered as the most significant research development in light metal joining.

Słowa kluczowe

EN

FSW; microstructural analysis; pipeline maintenance; scanning electron microscope

PL

FSW; analiza mikrostrukturalna; konserwacja rurociągu; skaningowy mikroskop elektronowy

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2016
• Tom: Vol. 79, nr 2
• Strony: 54--58
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Lenin A. W. A.

• Department of Mechanical Engineering, Mepco Schlenk Engineering College, Sivakasi - 626 005, Virudhunagar District, Tamilnadu, India

autor

Nagaraj P.

• Department of Mechanical Engineering, Mepco Schlenk Engineering College, Sivakasi - 626 005, Virudhunagar District, Tamilnadu, India

autor

Lincy G.

• Electrical Engineering, Bharath University, Chennai, India

Bibliografia

• [1] R.S. Mishraa, Z.Y. Ma, Friction stir welding and processing, Materials Science and Engineering 50 (2005) 1-78.
• [2] L. Ceschini, I. Boromei, G. Minak, A. Morri, F. Tarterini, Effect-of friction stir welding on microstructure, tensile and fatigue properties of the AA7005/10 vol. %Al2O3p composite, Composites Science and Technology 67 (2007) 605-615.
• [3] P. Cavaliere, M. Cabibbo, F. Panella, A. Squillace. 2198 Al-Li plates joined by Friction-Stir Welding: Mechanical and micro structural behawior, Materials and Design 30 (2009) 3622-3631.
• [4] Zhang Bing-Gang, Chen Guo-Ging, Zhang ChungGuang, Ni Jia-Qiang, Structure and mechanical properties of aluminum alloy/Ag interlayer/steel noncentered electron beam welded joints, Transactions of Nonferrous Metals Society of China 21 (2011) 25922596.
• [5] R.S. Mishra, S.R. Sharma, N.A. Mara, M.W. Mahoney, Proceedings of the International Conference on Jointing of Advanced and Specialty Materials III, ASM International, 2000, 157.
• [6] R. Winiczenko, M. Kaczorowski, Friction-welding of ductile cast iron using intelayers, Materials and Design 34 (2012) 444-451.
• [7] J. Guo, P. Gougeon, X.G. Chen, Microstructure evoluation and mechanical properties of dissimilar friction stir welded joints between AA1100-B4C MMC and AA6063 alloy, Materials Science and Engineering 553 (2012) 149-156.
• [8] R.S. Coelho, A. Kostka, J.F.dos Santos, A.KaysserPyzalla, Friction – stir dissimilar welding of alluminium alloy to high strength steels: Mechanical properties and their relation to microstructure, Materials Science and Engineering 556 (2012) 175183.
• [9] C. Jonckheere, B. de Meester, A. Denquin, A. Simar, Torque, temperature and hardening precipitation evolution in dissimilar friction stir welds between 6061-T6 and 2014-T6 aluminium alloys, Journal of Materials Processing Technology 213 (2013) 826837.