Abstract
A novel technique, by implementing a well-designed simulated welding, is proposed to precisely locate the soft zone. We capture and demonstrate that essential factors, including hardness profiles, geometrical dimension, microstructures, and elemental distributions, could enable fair comparison of key heat-affected zone sub-regions between actual and simulated welding samples. It is found that the width of the heat-affected zone has been expanded approximately 3 times, which will unambiguously facilitate the identification of the elusive soft zone.
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Acknowledgments
The authors wish to thank the financial supports from National Natural Science Foundation of China (Grant Nos. U20A20277, 52050410341, 51861130361, 51861145312, and 52011530180), Newton Advanced Fellowship by the Royal Society (Grant No. RP12G0414), Royal Academy of Engineering (Grant No. TSPC1070), The Fundamental Research Fund for Central Universities (Grant No. N2025025), Natural Science Foundation of Liaoning (Grant No. 2019KF0502), Regional Innovation Joint Fund of Liaoning Province (Grant No. 2020-YKLH-39), Special Fund for Key Program of Science and Technology of Liaoning Province (Grant No. 2019JH1/10100014), and Xingliao Talents Program (Grant Nos. XLYC1807024 and XLYC1802024).
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Manuscript submitted February 21, 2021, accepted April 16, 2021.
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Shen, Y., Gu, Z. & Wang, C. Facilitating the Identification of the Soft Zone in a 1.25Cr-0.5Mo Heat-Resistant Steel. Metall Mater Trans B 52, 1923–1929 (2021). https://doi.org/10.1007/s11663-021-02193-8
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DOI: https://doi.org/10.1007/s11663-021-02193-8