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Study of laser butt welding of SUS301L stainless steel and welding joint analysis

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Abstract

This paper describes a study on laser butt welding of 4 and 2 mm SUS301L stainless steel and a detailed analysis of welding joints. The gap tolerance of butt joint was also studied with optimized process parameters. The electrolytic etching in 10 % oxalate solution was used to test the intergranular corrosion of the 4 mm SUS301L welded joint. Fatigue property of the 2 mm SUS301L welded joint was tested under the conditional cycle times of 1 × 107. Using optical microscopy, the changes of metallurgical microstructure in the weld zone of 4 mm SUS301L were also studied. It has been found that laser butt welding of 4 mm SUS301L is able to achieve sound metallurgical morphology and high strength weld joint when the butt gap is within certain tolerance. The weld joint also has good resistance to intergranular corrosion and has a fatigue limit of 310 MPa.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China

    Long Chen, Longzao Zhou, Chao Tang, Chunming Wang, Xiyuan Hu, Jun Wang & Fei Yan

  2. Technical Center, Alcoa, PA, USA

    Wei Huang

  3. Zhuzhou Electric Locomotive CO., LTD, Zhuzhou, 412000, China

    Xuefang Wang & Zhengguang Jiang

  4. School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China

    Xinyu Shao

Authors
  1. Long Chen
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  2. Longzao Zhou
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  3. Chao Tang
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  4. Wei Huang
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  5. Chunming Wang
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  6. Xiyuan Hu
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  7. Jun Wang
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  8. Fei Yan
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  9. Xuefang Wang
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  10. Zhengguang Jiang
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  11. Xinyu Shao
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Correspondence to Chunming Wang.

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Chen, L., Zhou, L., Tang, C. et al. Study of laser butt welding of SUS301L stainless steel and welding joint analysis. Int J Adv Manuf Technol 73, 1695–1704 (2014). https://doi.org/10.1007/s00170-014-5928-y

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  • DOI: https://doi.org/10.1007/s00170-014-5928-y

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