Abstract
A novel method for grain refinement of martensite structures was proposed, in which transformation strain is accumulated by cyclic displacive forward and reverse transformations. This method can refine martensite structures in an Fe-18Ni alloy because a high density of austenite dislocations is introduced by a displacive reverse transformation in addition to an inheritance of dislocations in body-centered cubic martensite into austenite during cyclic transformation. The addition of a small amount of carbon accelerates structure refinement significantly, which results in the formation of ultra-fine-grained structures after ten cycles.
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21 June 2017
An erratum to this article has been published.
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The original article has been corrected as reflected in the erratum: In the original article, Hassan Shirazi’s name was presented incorrectly.
Manuscript submitted November 10, 2016.
An erratum to this article is available at https://doi.org/10.1007/s11661-017-4183-x.
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Chiba, T., Shirazi, H., Miyamoto, G. et al. Grain Refinement by Cyclic Displacive Forward/Reverse Transformation in Fe-High-Ni Alloys. Metall Mater Trans A 48, 4204–4210 (2017). https://doi.org/10.1007/s11661-017-4152-4
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DOI: https://doi.org/10.1007/s11661-017-4152-4