Microstructure evolution of friction stir processed 2507 duplex stainless steel

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 s...

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Bibliographic Details
Published in:Welding in the world 2021-12, Vol.65 (12), p.2349-2358
Main Authors: Gao, Shikang, Zhao, Hongyun, Zhang, Renxiao, Ma, Chengyue, Zhou, Li, Chen, Guo, Li, Degang, Yang, Haifeng, Song, Xiaoguo, Zhao, Yunqiang
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Duplex stainless steels
Dynamic recrystallization
Electron backscatter diffraction
Evolution
Materials Science
Metallic Materials
Microstructure
Optical microscopy
Research Paper
Solid Mechanics
Stainless steel
Theoretical and Applied Mechanics
Thermomechanical treatment
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Summary: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.
ISSN:0043-2288
1878-6669
DOI:10.1007/s40194-021-01175-3