Hypothesis on phase transition nucleation and propagation in polycrystalline NiTi shape memory alloys under nanoscale compressive loading

Abbas Amini, Chunhui Yang, Yang Xiang

    Research output: Chapter in Book / Conference PaperConference Paperpeer-review

    2 Citations (Scopus)

    Abstract

    ![CDATA[There is a need to clarify the phase transition nucleation and propagation phenomena in a polycrystalline NiTi shape memory alloy under extremely small-scale compressive loading. In the present study, the strain-stress indentation curves, temperature rise, phase transition volume, plastic volume and hardness of this smart material during static and dynamic loading are discussed and a hypothesis is proposed for the nucleation and propagation of phase transition volume underneath the stressed spot. According to the indentation curve, jagged loading/unloading stages are the evidences of discrete nucleation and propagation in the phase transformed zone.]]
    Original languageEnglish
    Title of host publicationMaterials Today, Vol. 3, Issue 2: Proceedings of the First International Conference on Advances in Functional Materials (AFM 2015), Stony Brook University, USA, 29 June - 3 July 2015
    PublisherElsevier
    Pages708-714
    Number of pages7
    DOIs
    Publication statusPublished - 2016
    EventInternational Conference on Advances in Functional Materials -
    Duration: 29 Jun 2015 → …

    Publication series

    Name
    ISSN (Print)1873-4103

    Conference

    ConferenceInternational Conference on Advances in Functional Materials
    Period29/06/15 → …

    Keywords

    • compression testing
    • nucleation
    • phase transformations (statistical physics)
    • propagation
    • shape memory alloys

    Fingerprint

    Dive into the research topics of 'Hypothesis on phase transition nucleation and propagation in polycrystalline NiTi shape memory alloys under nanoscale compressive loading'. Together they form a unique fingerprint.

    Cite this