J Mater Sci Technol ›› 1990, Vol. 6 ›› Issue (3): 177-181.

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Microdeformation Behaviour of a Ferritic-Austenitic Duplex Stainless Steel

HE Jianhong TANG Xiangyun CHEN Nanping Department of Materials Science and Engineering Huazhong University of Science and Technology Wuhan,430074,China.Department of Materials Science and Engineering Qinghua University,Beijing,100084,China.   

  • Received:1990-05-28 Revised:1990-05-28 Online:1990-05-28 Published:2009-10-10

Abstract: Microdeformation of ferritic and austenitic grains in a ferritic-austenitic duplex stainless steel have been observed in-situ by SEM with photoetch. The plastic deformation behaviour of austenitic grains are similar to ferritic grains for hydrogen uncharged specimens,it follows Mileiko's strain-equal model.But it will be changed when the specimens are hydrogen charged.

Key words: microdeformation, duplex stainless steel, in-situ observation