Investigation of Mechanical Properties of Microalloyed Steels Joined by GMAW and Electrical Arc Welding

• Authors: M. Ekici , U. Ozsarac
• Languages of publication: EN

Abstracts

EN

In this study, micro-alloyed steel samples were exposed to gas metal arc welding process by two welding wires coded ER100 SG and SG 3. Protection gases compositions were selected as 100% argon (Ar), 15% CO_2 + 85% argon (MIG/MAG-1) and 25% CO_2 + 75% argon (MIG/MAG-2) in three different types in order to investigate the CO_2 effect on mechanical properties. In addition, an electric arc welding electrode coded Fox EV 85 was selected for arc welding applications to research the effect of welding method in mechanical properties. Welded joint were prepared at 130 A, 20 V; 150 A, 22 V and 170 A, 24 V welding parameters. All welded joint specimens were exposed to tensile tests, Charpy impact tests to evaluate the yields strength, maximum tensile stress, fracture stress, % elongation values and ductile-to-brittle transition temperatures values. Micro and macrostructure photos and scanning electron microscopy micrographs of specimens were obtained. The optimum parameters were advised to users at the end of this study.

Keywords

EN

81.20.Vj; 81.70.Bt; 81.05.-t; 81.05.Bx

Discipline

• 81.20.Vj: Joining; welding
• 81.05.-t: Specific materials: fabrication, treatment, testing, and analysis(for superconducting materials, see 74.70.-b, and 74.72.-h; for magnetic materials, see 75.50.-y; for optical materials, see 42.70.-a; for dielectric materials, see 77.84.-s; for disperse systems and complex fluids, see 82.70.-y; see also 82.75.-z Molecular sieves, zeolites, clathrates, and other complex solids; for materials properties, see sections 60 and 70)
• 81.05.Bx: Metals, semimetals, and alloys
• 81.70.Bt: Mechanical testing, impact tests, static and dynamic loads(see also 62.20.M- Structural failure of materials; 46.50.+a Fracture mechanics, fatigue, and cracks)

• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 123
• Issue: 2
• Pages: 289-290

Dates

published

2013-02

Contributors

author

M. Ekici

• Yalova University, Vocational School of Yalova, Yalova, Turkey

author

U. Ozsarac

• Sakarya University, Faculty of Technology, Department of Metallurgical and Materials Engineering, Esentepe Campus, Sakarya, Turkey

References

• [1] W.D. Callister, Materials Science and Engineering, 2nd ed., Wiley, Utah 1991
• [2] E.P. Degarmo, J.T. Black, R.A. Kohser, Materials and Processes in Manufacturing, 9th ed., Wiley, New York 2004
• [3] S.P. Chaudhuri, R.K. Mahanti, C.S. Sivaramakrishnan, M.P. Singh, Mater. Des. 23, 489 (2002)
• [4] M.Y. Delince, E.D. Embury, M.D. Geers, P.J. Jacques, T. Pardoen, Acta Mater. 7, 2337 (2007)
• [5] M. Ekici, M.Sc. Thesis, Sakarya University, Sakarya, Turkey 2009
• [6] E. Karadeniz, C. Yildiz, U. Ozsarac, Mater. Des. 28, 649 (2007)

Identifiers

DOI

10.12693/APhysPolA.123.289