The study has compared the effect of gas metal arc welding techniques on some mechanical properties of duplex stainless steel. The samples after welded were given post weld heat treatment (quenching in engine and neem oil). After the analyses, it was established that duplex stainless steel can be weld successfully using gas metal arc welding process (GMAW). Both Lubricating oil and neem oil can serve as quenching medium for post welding heat treatment of duplex stainless steel. The results of the studies also show that welding and heat treatment really affect the mechanical properties of the alloy; the control strength was 811.47 MN/m2 while that of the welded samples ranged from 177.07 to 257.32 MN/m2. The control impact energy was 162.70 J, while that of the welded samples ranged from 38.64 J to 56.20 J. The research also shows that the stress relief heat treatment gives better strength (A3 = 331 MN/m2) compared to those that were quenched in lubricating oil (A2 = 329 MN/m2) and neem oil (A1 = 222 MN/m2), but the reverse is the case in terms of toughness.
References
[1]
A. K. Bhaduri, S. K. Albert, S. K. Ray and Rodriguez, “Recent Trends in Repair and Refubishing of Steam Turbine Component,” Sahdhana, Vol. 24, No. 3 & 4, 2003, pp. 395-408. doi:10.1007/BF02706440
R. Gunn, “Duplex Stainless Steels—Microstructure, Properties and Applications,” Abington Publishing, Cambridge, 1997. doi:10.1533/9781845698775
[7]
P. Claes-Ove and F. Sven-Åven, “Welding Practice for the Sandvik Duplex Stainless Steels SAF 2304, SAF2205 and SAF2507,” AB Sandvik Steel, S-811 81 Sandviken, 1995.
[8]
P. K. Rohatgi, F. M. Yarandi and Y. Liu, “Proceedings of International Symposium on Advances in Cast Reinforced Metal Composites,” In: S. G. Fishman and A. K. Dhingra, Eds., ASM International Publication, Materials Park, 249, 1998.
[9]
A. F. Whitehouse, R. A. Shahani and T. W. Clyne, “Metal Matrix Composites: Processing, Microstructure and Properties,” In: R. N. Hansen et al., Eds., 12 Risθ International Symposium, Risθ National Laboratory, Denmark, 1991, pp. 741-748.
[10]
W. Zhou and Z. M. Xu, “Casting of SiC Reinforced Metal Matrix,” Journal of Materials Processing Technology, Vol. 63, No. 1-3, 1997, pp. 358-363.doi:10.1016/S0924-0136(96)02647-7
[11]
L. A. Pothan, S. Thomas and Neelakantan, “Short Banana Fiber Reinforced Polyester Composites, Mechanical, Fai- lure and Aging Characteristics,” Journal of Reinforced Plastics and Composites, Vol. 16, No. 8, 1997, pp. 744-765.
[12]
S. J. He, K. Y. Shi, J. Bai, Z. K. Zhang, L. Li, Z. J. Du and B. L. Zhang, “Studies on the Properties of Epoxy Resins Modified with Chain-Extended Ureas,” Journal of Polymer, Vol. 42, No. 23, 2001, pp. 9641-9647.doi:10.1016/S0032-3861(01)00450-5
[13]
I. A. Madugu, M. Abdulwahab and V. S. Aigbodion, “Effect of Iron Filings on the Properties and Microstructure of Cast Fibre-Polyester/Iron Filings Particulate Compos- ite,” Journal of Alloys and Compound, Vol. 476, No. 1-2, 2010, pp. 808-811.
[14]
A. K. Mohanty, M. Misra and L. T. Drzal, “Sustainable Bio-Composites from Renewable Resource,” Opportunity and Challenges in the Green Materials World, Journal of Polymer and Environment, Vol. 10, No. 1-2, 2002, pp. 19-26.
[15]
R. Asthana, “Solidification Processing of Reinforced Metals,” Transport Technology Publications, 1998, pp. 67-80.
[16]
T. W. Clyne, “Comprehensive Composite Materials,” Journal of Metal Matrix Composite, Vol. 3, 2000, pp. 1-8.
[17]
S. Donne, M. R. Krishnadev and R. Bouchard, “Metal and Ceramic Matrix Mechanical Behavior,” The Minerals Metals and Materials Society, 1990, pp. 243-251.
[18]
A. Sagail and G. Leisk, “Heat Treatment Optimization of Alumina/Aluminium Metal Matrix Composites Using the Taguchi Approach,” Journal of Scripta Metallurgica et Material, Vol. 26, No. 6, 1992, pp. 871-876.
[19]
Y. Sukru, O. Cavdar and A. Cavdar, “The Effects of the Fibre Contents on the Mechanical Properties of the Adobes,” Journal of Construction and Building Materials, Vol. 22, No. 3, 2008, pp. 222-227. doi:10.1016/j.conbuildmat.2006.08.022
[20]
J. P. Cottu, J. J. Coudere, B. Viguier and L. Bernard, “Influence of SiC Reinforcement on Precipitation and Hardening of a Metal Matrix Composite,” Journal of Material Science, Vol. 27, No. 11, 1992, pp. 3068-3074. doi:10.1007/BF01154120
[21]
J. W. Kock, “Physical and Mechanical Properties of Chicken Feather Materials,” Msc Thesis Presented to the Academic Faculty Georgia Institute of Technology, 2000.
[22]
S. C. Mishra, N. B. Nayak and A. Satapathy, “Investigation on Bio-Waste Reinforced Epoxy Composites,” Metallurgical and Materials Engineering Department, National Institute of Technology, Rourkela, 1999, pp. 119-123.
[23]
N. M. White and M. P. Ansell, “Straw Reinforced Polyester Composites,” Journal of Material Science, Vol. 18, No. 5, 1993, pp. 1549-1556. doi:10.1007/BF01111977
[24]
J. Nowacki and P. Rybicki, “Corrosion Resistance of SAW Duplex Joints Welded with High Heat Input,” Journal of Achievements in Materials and Manufacturing Engineering, Vol. 23, No. 2, 2007, pp. 7-14.
[25]
J. Labanowski and K. Krzysztofowicz, “The Influence of Welding Thermal Cycles on Corrosion Resistance of Duplex Stainless Steel,” 2005. www.pg.gda.pl/mech/kim/AMS/022005/ams02200503.pdf
