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Microstructure and Stress Distribution Analysis of T-Joint of Clam Steel

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Abstract

The microstructure and stress distribution on T-joint of China Low Activation Martensitic steel was investigated in this research. Two kinds of grooves, single bevel groove and K groove, were prepared to study the residual deformation of T-joint. Microstructure and microhardness distributions along web plate on K groove sample were detected. The distributions of the longitudinal and transverse residual stress on T-joint were simulated by a finite element model, residual deformation process of T-joint was discussed. All the results indicate that tempered martensite are found in the weld metal and heat affected zone on web plate and flange plate. The obvious residual deformation can be observed in two kinds of T-joint sample. According to the results of numerical studies, transverse residual stress is tensile stress at middle section of weld joint and pressure stress at start and end section of weld joint, the longitudinal residual stress is tensile stress along the welding direction.

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Acknowledgments

This work is supported by the China National Natural Science Foundation with Grant No. 51375216, and the Open-Fund Research of State Key Lab of Advanced Welding and Joining with Grant No. AWJ-Z13-01, and the Natural Science Foundation of Jiangsu Province in China with Grant No. BK20130509, and Foundation for Advanced Talents of Jiangsu University with Grant No. 13JDG008.

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Authors and Affiliations

  1. School of material science and engineering, Jiangsu University, No. 301 Xuefu Rd, Zhenjiang, China

    Qiang Zhu, Yucheng Lei, Yunlong Wang, Shenyong Liang, Yimin Ye & Changsheng Li

  2. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, China

    Yucheng Lei

  3. Institute of Advanced material, Jiangsu University, Zhenjiang, China

    Changsheng Li

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  1. Qiang Zhu
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  2. Yucheng Lei
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  3. Yunlong Wang
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  4. Shenyong Liang
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  5. Yimin Ye
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  6. Changsheng Li
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Correspondence to Qiang Zhu or Yucheng Lei.

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Zhu, Q., Lei, Y., Wang, Y. et al. Microstructure and Stress Distribution Analysis of T-Joint of Clam Steel. J Fusion Energ 34, 540–544 (2015). https://doi.org/10.1007/s10894-014-9837-8

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  • DOI: https://doi.org/10.1007/s10894-014-9837-8

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