Figure 3. Comparison of mild steel HAZ hardness of weldments as obtained from experiment and derived model

From

Response of Weldment Heat Affected Zone Hardness to the Operational Welding Current Resistance

C. I. Nwoye, P. C. Nwosu, P. Okonji, E. C. Chinwuko

International Journal of Materials Lifetime. 2015, 2(1), 1-5