The effect of welding method on the structure of a welded joint

• Autorzy: Ciechacki, K. , Szykowny, T.
• Języki publikacji: EN

Abstrakty

EN

This work explains the influence of a local structural heterogeneity and resulting mechanical heterogeneity in welded joints on the location and nature of welded joint failure. Toughened structural steel S355 with a thickness of 7mm, welded using laser beam or gas metal arc welding (GMAW) was used for the purposes of this analysis. Hardness penetration pattern in welded joint cross-section was defined and mechanical properties of a welded joint in static tensile test (Re, Rm, A5, Z) were determined. Microstructure and microfractographic tests of fractures were performed.

Słowa kluczowe

EN

laser beam welding; GMAW; hardness; macrostructure; microstructure

• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2012
• Tom: Vol. 7, no 3
• Strony: 47-52
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Ciechacki, K.

autor

Szykowny, T.

• University of Technology and Life Sciences al. Prof. S. Kaliskiego 7, 85-789 Bydgoszcz, Poland tel.: [phone], fax: [phone],

Bibliografia

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• [3] Buchmayr B., Cerjak H. (1988), Mathematical description of HAZ behaviour of low – alloyed structural steels. Weld Quality – The Role of Computers, II W-conf. Vienna.
• [4] Ciechacki K. (2005), The study of mechanical properties of the selected calls are bonded with a local variation of mechanical properties, Ph.D. Thesis, University of Technology and Agriculture in Bydgoszcz, Faculty of Mechanical Engineering.
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• [6] Godlak J., Breiguine V., Dai N., Hughes E. (1997), Thermal strew analysis in solids near the liquid region in welds. Mathematical Modelling of Weld Phenomena 3, Institute of Materials, book 650.
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• [8] Ranatowski E. (1997), Some remarks on stress state at interface of the thin layer in metal joints under tension. Micro Materials, editors: B. Michel, T. Winkler, Berlin.
• [9] Ranatowski E. (2001), Some remarks on the relation between microstructure and mechanical properties in mismatched weld joints. Materials Engineering,nr 5.