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dc.contributor.authorWang, Xen_US
dc.contributor.authorWan, Jen_US
dc.contributor.authorWang, Jen_US
dc.contributor.authorZhu, Len_US
dc.contributor.authorRuan, Hen_US
dc.identifier.citationMaterials and design, 2019, v. 181, 108071en_US
dc.description.abstractThis work reports an anomalous and remarkable Sudden Drop of Modulus (SDM) associated with a precipitous surge of internal friction induced by the solid-state phase transformation (SSPT) in a severely cold-rolled duplex stainless steel (DSS). It is further shown that such a sudden drop does not appear if the DSS is not plastically deformed or if the severely rolled single-phase stainless steel is examined, indicating respectively that the phase growth or the recrystallization is not the cause. This anomaly occurs at the temperature between 930 and 950 °C, which is much lower than the solidus temperature of the DSS. And the results of differential scanning calorimetry (DSC) do not render any strong endothermic behavior at the temperature of SDM, excluding the possibility of pre-melting of some last solidified region. Based on these experimental results, we speculate that the SSPT in the severely deformed DSS may undergo a crystal-amorphous-crystal (CAC) two-step process, in which the intermediate amorphous phase with a low viscosity accounts for the sudden drop of the Young's modulus and the sudden surge of the internal friction. This amorphous phase is metastable, which gradually transforms to crystalline phase associated with a heat release and the slow recovery of stiffness.en_US
dc.description.sponsorshipDepartment of Mechanical Engineeringen_US
dc.relation.ispartofMaterials and designen_US
dc.rights© 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (
dc.rightsThe following publication Wang, X., Wan, J., Wang, J., Zhu, L., & Ruan, H. (2019). Anomalous sudden drop of temperature-dependent Young's modulus of a plastically deformed duplex stainless steel. Materials & Design, 181, 108071 is available at
dc.subjectMetallic materialen_US
dc.subjectMetastable phasesen_US
dc.subjectNondestructive testingen_US
dc.subjectSolid state phase transformationen_US
dc.titleAnomalous sudden drop of temperature-dependent young's modulus of a plastically deformed duplex stainless steelen_US
dc.typeJournal/Magazine Articleen_US
dc.description.validate201910 bcma-
Appears in Collections:Journal/Magazine Article
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