Superplasticity in Fe3Al based alloy

A. Shan, M. Chen, D. Lin, D. Li

    Research output: Contribution to journalConference articlepeer-review

    1 Citation (Scopus)

    Abstract

    This paper announced the superplasticity of a Fe3Al based alloy (Fe-28Al-2Ti in atomic percent) for the first time. This alloy exhibits superplasticity between 800 °C and 900 °C under strain rates from 4×10-3 to 4.8×10-4/s Its m value is about 0.30 to 0.42 and the maximum elongation may reach 332.8% at 850 °C under a strain rate of 1.0×10-3/s. Significantly, specimens for this test were prepared by traditional casting and hot rolling, the grain size is much bigger(>100 μm) than that people generally believed to be necessary for structural superplasticity. Changes of the microstructures before and after deformation were examined by OM and TEM. The reason for this superplasticity was ascribed to the dynamic recrystallization which takes place during superplastic deformation.

    Original languageEnglish
    Pages (from-to)489-494
    Number of pages6
    JournalMaterials Science Forum
    Volume170-172
    Publication statusPublished - 1994 Dec 1
    EventProceedings of the 1994 International Conference on Superplasticity in Advanced Materials (ICSAM-94) - Moscow, Russia
    Duration: 1994 May 241994 May 26

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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