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Evolution of intermetallics in a 26Cr-4Mo-2Ni (Ti + Nb) super ferritic stainless steel aged at 800°C

Journal Article


Abstract


  • The precipitation of intermetallics in a 26Cr-4Mo-2Ni (Ti + Nb) super ferritic stainless steel during aging at 800°C was investigated. Optical, scanning electron and transmission electron microscopes and X-ray diffractometer were used to characterize the microstructure. Results show that the Χ phase formed in 5 min and almost disappeared within 24 h. The σ phase began to form at grain boundaries when aged for 30 min and its amount increased with prolonged aging. After 24 h, the σ phase covered the grain boundaries and grew into the grain interiors. The Laves phase was found to form within 30 min.

Publication Date


  • 2015

Citation


  • He, M. L., Yu, L. M., & Li, H. J. (2015). Evolution of intermetallics in a 26Cr-4Mo-2Ni (Ti + Nb) super ferritic stainless steel aged at 800°C. Materials Research Innovations, 19, S136-S140. doi:10.1179/1432891715Z.0000000001364

Scopus Eid


  • 2-s2.0-84941219566

Web Of Science Accession Number


Start Page


  • S136

End Page


  • S140

Volume


  • 19

Abstract


  • The precipitation of intermetallics in a 26Cr-4Mo-2Ni (Ti + Nb) super ferritic stainless steel during aging at 800°C was investigated. Optical, scanning electron and transmission electron microscopes and X-ray diffractometer were used to characterize the microstructure. Results show that the Χ phase formed in 5 min and almost disappeared within 24 h. The σ phase began to form at grain boundaries when aged for 30 min and its amount increased with prolonged aging. After 24 h, the σ phase covered the grain boundaries and grew into the grain interiors. The Laves phase was found to form within 30 min.

Publication Date


  • 2015

Citation


  • He, M. L., Yu, L. M., & Li, H. J. (2015). Evolution of intermetallics in a 26Cr-4Mo-2Ni (Ti + Nb) super ferritic stainless steel aged at 800°C. Materials Research Innovations, 19, S136-S140. doi:10.1179/1432891715Z.0000000001364

Scopus Eid


  • 2-s2.0-84941219566

Web Of Science Accession Number


Start Page


  • S136

End Page


  • S140

Volume


  • 19