Author(s)

C. I. Nwoye, C. N. Anyakwo, E. Obidiegwu, N. E. Nwankwo

Department of Materials and Metallurgical Engineering Federal University of Technology,Owerri, Nigeria..
Department of Metallurgical and Materials Engineering University of Lagos, Nigeria..
Department of Metallurgical Engineering and Materials Engineering Nnamdi Azikiwe University, Awka, Nigeria..

Models have been derived for assessment and computational analysis of the hardness of the heat affected zone (HAZ) in aluminum weldment. The general model; γ = 1.2714[(αβ/α + β)] was found to predict the HAZ hardness of aluminum weldment cooled in water as a function of the HAZ hardness of both mild steel and cast iron welded and cooled under the same conditions. The maximum deviations of the model-predicted HAZ hardness values γ, α and β from the corresponding experimental values γ_exp, α_exp and β_exp were less than 0.02% respectively.

Model, Hardness, Heat Affected Zone, Aluminum Weldments, Mild Steel, Cast Iron.

C. Nwoye, C. Anyakwo, E. Obidiegwu and N. Nwankwo, "Models for Assessment and Computational Analysis of Hardness of the Heat Affected Zone in Water Cooled Aluminum Weldment," Journal of Minerals and Materials Characterization and Engineering, Vol. 10 No. 8, 2011, pp. 707-715. doi: 10.4236/jmmce.2011.108055.