JSEMAT  Vol.5 No.4 , October 2015
Effect of Heat Treatment Parameters on the Mechanical and Microstructure Properties of Low-Alloy Steel
Author(s) Mohamed H. Frihat*
ABSTRACT
This study examines the effect of heat treatment at three different temperatures of 800°C, 950°C and 1100°C on the microstructure and mechanical properties of low-alloy steel with an addition of manganese, chrome and lead. To determine an impact of the applied heat treatment operations, testing of mechanical properties and microstructural examinations of the steel with 0.23%, 0.24%, 0.29% and 0.31% C were conducted. This work shows that the mechanical strengths of the alloy steel are improved with increasing the heat treatment temperature. In addition, the microstructure trends toward recrystallized ferrite grains as the heat treatment temperature increases.

Cite this paper
Frihat, M. (2015) Effect of Heat Treatment Parameters on the Mechanical and Microstructure Properties of Low-Alloy Steel. Journal of Surface Engineered Materials and Advanced Technology, 5, 214-227. doi: 10.4236/jsemat.2015.54023.
References
[1]   Aver, S.H. (1974) Introduction to Physical Metallurgy. 2nd Edition, McGraw-Hill Book Company, New York.

[2]   American Society for Metals (1964) Metal Handbook Vol. 2. 8th Edition, American Society for Metals, Materials Park, Ohio.

[3]   Roberti, R., Cornacchia, G. and Faccoli, M. (2012) Effect of Increasing Post Weld Heat Treatment Temperature on the Fracture Toughness of an ASME SA-542M Steel. Forni di Sopra (UD), Italia.

[4]   Razzak, M.A. (2011) Heat Treatment and Effects of Cr and Ni in Low Alloy Steel. Bulletin of Materials Science, 34, 1439-1445.
http://dx.doi.org/10.1007/s12034-011-0340-9

[5]   Mohyla, P., Tomcík, P., Benes, L. and Hlavaty, I. (2011) Influence of Post Weld Heat Treatment on Secondary Hardening of CrMoV Welded Joints. Metal Science and Heat Treatment, 53, 374-378.
http://dx.doi.org/10.1007/s11041-011-9401-3

[6]   da Trindade Filho, V.B., Guimaraes, A.S., Payao Filho, J. da C. and Paranhos, R.P. da R. (2004) Normalizing Heat Treatment Effects on Low Alloy Steel Weld Metals. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 26.

[7]   Kalandyk, B. and Zapala, R. (2008) Effect of Heat Treatment Parameters on the Properties of Low-Alloy Cast Steel with Microadditions of Vanadium. Archives of Foundry Engineering, 8, 137-140.

[8]   Pang, W., Ahmed, N. and Dunne, D. (2011) Hardness and Microstructural Gradients in the Heat Affected Zone of Welded Low-Carbon Quenched and Tempered Steels. Australasian Welding Journal, 56, 36-48.

[9]   Ebert, H.W. and Winsor, F. (1984) Carbon Steel Submerged Arc Welds-Tensile Strength vs. Corrosion Resistance. Welding Research Supplement 1193-s.

[10]   Hamedi, M. (2006) Optimizing Tensile Strength of Low-Alloy Steel Joints in Upset Welding. Journal of Achievements in Materials and Manufacturing Engineering, 17, 341-344.

[11]   Mohideen, R. and Ahmed Zaidi, A.M. (2010) Influence of Post Weld Heat Treatment on the HAZ of Low Alloy Steel Weldments. International Journal of Integrated (Issue on Mechanical, Material and Manufacturing Engineering).
http://eprints.uthm.edu.my/616/1/ijiev22010p2.pdf

[12]   Zahirul, H.M. (1989) Effect of Alloying Elements in HSLA. MsC Engg. Thesis, Department of Metallurgical Engineering, BUET, Dhaka, 130-150.

[13]   Clark, D.S. and Varney, W.R. (1962) Physical Metallurgy for Engineers. 2nd Edition, Litton Educational Publishing Inc., New York.

 
 
Top