TY - SER AU - Nwoye, C. I. AU - Odo, J. U. AU - Ameh, E. M. AU - Nwakpa, S. O. TI - Factorial Analysis of Welding Current Influence on Heat Affected Zone Hardness of Cast Iron, Aluminium, and Mild Steel Weldments Cooled in Palm Oil KW - Mild Steel Weldments Cooled in Palm Oil KW - Heat Affected Zone Hardness KW - Welding Current Influence ER -