Impact of Heat on Welding Joints in Duplex Stainless Steel
Author Information
Author(s): Pałubicki Stanisław, Plichta Jarosław, Nadolny Krzysztof, Cheepu Murali Mohan
Primary Institution: Koszalin University of Technology
Hypothesis
This study aims to determine the relationship between heat input parameters and the size of cross-sectional areas in welded joints of ferritic–austenitic stainless steel.
Conclusion
The study confirms a correlation between heat input and the size of the average cross-sectional area of the weld, which can help predict the properties of welded joints.
Supporting Evidence
- The study found that increased heat input leads to larger weld cross-sectional areas.
- Regression models developed can predict weld sizes based on input parameters.
- Quality levels of welded joints were assessed according to EN ISO standards.
Takeaway
This research shows that the amount of heat used in welding affects how strong and big the welds are, which is important for making sure they work well.
Methodology
The study used a five-level rotational experiment plan to analyze the effects of welding current, arc voltage, and welding speed on weld cross-sectional areas.
Limitations
The applicability of the findings is limited to the tested range of parameters and requires stable arc conditions.
Statistical Information
P-Value
0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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