Thermal loading of duplex steels

Vadim V. Silberschmidt, Ewald A. Werner, Christof Messner

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Ferritic-austenltic duplex steels demonstrate a complex deformational behavior even in the absence of mechanical loads. Purely thermal cycling in the temperature interval from 20°C to 900°C can cause either accumulation of inelastic strains (thermal ratchetting) or plastic shakedown, depending on microstructure morphology and/or the strength and thermal properties of the constituting phases. In this paper, a study is undertaken on duplex steel containing nitrogen, including experimental and theoretical analyses at microscopic and macroscopic levels. High-precision dilatometry and roughness measurements are accompanied by thorough numerical simulations based on different microstructural models.

Original languageEnglish
Pages (from-to)56-64
Number of pages9
JournalJournal of Engineering Materials and Technology
Issue number1
StatePublished - Jan 2003


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