Appropriate Technological Procedures for Fusion Welding of Low Alloy Carbon Steel

Main Article Content

I. O. Oladele
O. O. Daramola
A. Oyetunji

Abstract

Most welding products from unskilled welders in Nigeria have been observed to exhibit low values of mechanical properties, as well as high corrosion rates and incessant failure of the welded joints in service. In this research, unskilled welders in Akure, one of the major capital cities in Nigeria were used as case studies in which low carbon steel plate was made available for the unskilled welders to weld. Three different welding shops within the city were selected while welding of the same material was carried out by skilled welder at the workshop of Metallurgical and Materials Engineering (MME) Department of the Federal University of Technology, Akure; The latter served as a control. Tensile and hardness tests were carried out on the welded samples from where it was observed that the samples welded in the Metallurgical and Materials Engineering Department workshop had better mechanical properties than those welded by the unskilled welders. The best welded samples from among the unskilled welders were used to test for corrosion rates in comparison with the welded control sample. From the result, it was also observed that the welded control sample possessed higher resistance to corrosion in the selected corrosive media than the welded samples from the unskilled welders.

 

Keywords: Assessment, Improvement, Mechanical properties, Welded products, Nigeria

Article Details

Section
Articles
Author Biographies

I. O. Oladele, Federal University of Technology Akure

Metallurgical and Materials Engineering Department

O. O. Daramola, Federal University of Technology Akure

Metallurgical and Materials Engineering Department

A. Oyetunji, Federal University of Technology Akure

Metallurgical and Materials Engineering Department

References

Adelabu, J. S. A. (2001). The State of the Nation in Science. In Molemodike, V.S (e.d). Nageriances: A General Perspective

Vol. 1 Vougasan Publishers Ltd. Enugu, pp.213-235.

ASM International (2003). Trends in Welding Research in the United States. Materials Park, Ohio, ASM International, pp. 995-1005.

Davis R. (ed.) (2006). Corrosion of Weldments, ASM International, pp1-3.

Dhamangaonkar, A. (2007). Health Research in Developing Countries: Challenges and Possible Solutions for its Improvement.

Retrieved August 11, 2008 from http://www.global forum health.org/tilesuplid/young%20voices/07/art/youngvoices 07 dhamangank ar-health research in developing countries.

Lancaster, J. F. (1993). The Metallurgy of Welding. Chapman and Hall, London, UK. pp 93-106, 230-232.

Khurmi, R.S. (2006). Workshop Technology. Rajendra Printers (Pvt), Limited, India; pp 287-310.

Oladele et al. / FUTAJEET 8 (1) (2014) (49-53)

Oyetunji, A. (2007). Modelling Mechanical Properties of Grey Cast Iron. PhD Theses Dissertation of The Federal University of

Technology, Akure Nigeria Pp 80-84.

Oyetunji, A and Alaneme, K. K. (2005). Correlation of the Influence of the Silicon Content and Matrix Structure on the

Mechanical Properties of Al-Si alloyâ€. West Indian Journal of Engineering Vol 28 . No1, Pp 36 - 44.

Oyinlola, A.K. (1997). Mechanical Properties Of Aladja NST 44-2 Structural Steel Quenched In Fatty Base Local Oils. Journal

Of Technical Education. Vol.4 No. 2. Pp 193-204.

Polukin, P. (1977). Metal Process Engineering. MIR Publishers, Moscow, pp 280- 295.

Scully, J.C. (1990). The Fundamental of Corrosion. Maxwell Macmillan Perganman Publishing Corporation, Oxford.