Superplasticity mechanism of duplex stainless steels

ZHANG Peixue; REN Xueping; XIE Jianxin; ZHANG Bingzhe; HAN Wendian; SONG Jie

doi:10.13374/j.issn1001-053x.2005.01.017

Volume 27 Issue 1

Aug. 2021

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ZHANG Peixue, REN Xueping, XIE Jianxin, ZHANG Bingzhe, HAN Wendian, SONG Jie. Superplasticity mechanism of duplex stainless steels[J]. Chinese Journal of Engineering, 2005, 27(1): 68-71. doi: 10.13374/j.issn1001-053x.2005.01.017

Citation:

ZHANG Peixue, REN Xueping, XIE Jianxin, ZHANG Bingzhe, HAN Wendian, SONG Jie. Superplasticity mechanism of duplex stainless steels[J]. Chinese Journal of Engineering, 2005, 27(1): 68-71. doi: 10.13374/j.issn1001-053x.2005.01.017

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Superplasticity mechanism of duplex stainless steels

doi: 10.13374/j.issn1001-053x.2005.01.017

1. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. Technology Center, Jinan Iron & Steel Co. Ltd., Jinan 250101, China;
3. Scheduling Department, Jinan Iron & Steel Co. Ltd., Jinan 250101, China

Received Date: 2003-09-05
Rev Recd Date: 2004-04-10

Available Online: 2021-08-17

Abstract

Abstract

The superplasticity mechanism of duplex stainless steels was studied mainly by means of crystallography. On this basis, the Electron Back Scatter Diffraction (EBSD) system was used to obtain the orientation distribution, Tango-mapping and Mambo-pole figures. Microstructural studies associated with transmission electron micrographs observed in the specimens during superplastic deformation suggest that superplastic process occurs mainly by strain-induced phase transformation and dynamic recrystallization, grain boundary sliding and grain re-orientation mechanism.
- superplasticity,
- texture,
- phase transformation,
- orientation