Issue 77

C. N. Vikas et alii, Fracture and Structural Integrity, 77 (2026) 120-137; DOI: 10.3221/IGF-ESIS.77.09

Figure 7: UTS Residual plots.

Figure 8: Hardness values Residual plots. The F-values for TRS is 99.80 and WS is 29.31 are effectively greater than the critical F-value at 95% confidence level confirming their statistical significance. The corresponding P-values are well below the significance level of 0.05, further validating their importance. The TRS emerged as the most influential input parameter, which orients with its substantial effect on thermal gradient and material flow characteristics during the joining. The welding feed rate, while slightly less

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