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Microstructure evolution of friction stir processed 2507 duplex stainless steel

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Abstract

Microstructure evolution of friction stir processed 2507 duplex stainless steel was investigated at rotational speed of 400 rpm and traverse speed of 100 mm/min. The microstructural evolution in processed zone was studied by optical microscopy and electron backscattered diffraction. Regions in the stir zone and the thermo-mechanically affected zone experienced different microstructure evolution due to different thermo-mechanical processes. The results showed that static recrystallization, dynamic recrystallization, and dynamic recovery occurred in the processed zone. And the ferrite was occurred the recrystallization prior to the austenite.

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Funding

The research was sponsored by the Key Research and Development Program in Shandong Province (No. 2017CXGC0811) and the Science and Technology Plan Project of Guangzhou City (201704030038).

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Authors and Affiliations

  1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, People’s Republic of China

    Shikang Gao, Hongyun Zhao, Renxiao Zhang, Chengyue Ma, Li Zhou, Guo Chen, Haifeng Yang & Xiaoguo Song

  2. Shandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology At Weihai, Weihai, 264209, People’s Republic of China

    Shikang Gao, Hongyun Zhao, Renxiao Zhang, Chengyue Ma, Li Zhou, Guo Chen, Degang Li, Haifeng Yang & Xiaoguo Song

  3. Shandong Institute of Shipbuilding Technology, Shandong, China

    Xiaoguo Song

  4. Guangdong Provincial Key Laboratory of Advanced Welding Technology, Guangdong Welding Institute (China-Ukraine E. O. Paton Institute of Welding), Guangzhou, 510650, People’s Republic of China

    Yunqiang Zhao

Authors
  1. Shikang Gao
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  2. Hongyun Zhao
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  3. Renxiao Zhang
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  4. Chengyue Ma
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  5. Li Zhou
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  6. Guo Chen
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  7. Degang Li
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  8. Haifeng Yang
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  9. Xiaoguo Song
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  10. Yunqiang Zhao
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Correspondence to Li Zhou or Yunqiang Zhao.

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Recommended for publication by Commission III - Resistance Welding, Solid State Welding, and Allied Joining Process

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Gao, S., Zhao, H., Zhang, R. et al. Microstructure evolution of friction stir processed 2507 duplex stainless steel. Weld World 65, 2349–2358 (2021). https://doi.org/10.1007/s40194-021-01175-3

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  • DOI: https://doi.org/10.1007/s40194-021-01175-3

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