September 10, 2025Metallurgical Research & Technology

Effect of Cu content and heat input on post-weld properties and microstructure of Cu-bearing steels

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Increasing copper content up to 2 wt.% improves mechanical properties without cluster formation.
Significant precipitation strengthening observed in steel with 1 wt.% Cu at heat inputs over 150 kJ/cm.
Practical welding tests show decreased grain size in weld joints with higher copper contents.
Heat-affected zone toughness is enhanced with increased copper content and appropriate heat input levels.

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Implication

Experimental analysis highlights the role of copper in enhancing microstructure and toughness in low-carbon steel welds, suggesting optimal heat input levels.

Cite This Study

Jiao et al. (2025) studied this question.

synapsesocial.com/papers/68c23d3ab210217d6478d4e9 https://doi.org/10.1051/metal/2025065

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Implication

Experimental analysis highlights the role of copper in enhancing microstructure and toughness in low-carbon steel welds, suggesting optimal heat input levels.

Effect of Cu content and heat input on post-weld properties and microstructure of Cu-bearing steels

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Discussion

Implication

Cite This Study

Effect of Cu content and heat input on post-weld properties and microstructure of Cu-bearing steels

Key Points

Discussion

Implication

Cite This Study

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Also Consider