High ductility of ultrafine-grained steel via phase transformation

S. Cheng; H. Choo; Y. H. Zhao; X. L. Wang; Y. T. Zhu; Y. D. Wang; J. Almer; P. K. Liaw; J. E. Jin; Y. K. Lee

doi:10.1557/jmr.2008.0213

High ductility of ultrafine-grained steel via phase transformation

S. Cheng, H. Choo, Y. H. Zhao, X. L. Wang, Y. T. Zhu, Y. D. Wang, J. Almer, P. K. Liaw, J. E. Jin, Y. K. Lee

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

23 Citations (Scopus)

Abstract

There is often a tradeoff between strength and ductility, and the low ductility of ultrafine-grained (UFG) materials has been a major obstacle to their practical structural applications despite their high strength. In this study, we have achieved a ∼40% tensile ductility while increasing the yield strength of FeCrNiMn steel by an order of magnitude via grain refinement and deformation-induced martensitic phase transformation. The strain-rate effect on the inhomogeneous deformation behavior and phase transformation was studied in detail. © 2008 Materials Research Society.

Original language	English
Pages (from-to)	1578-1586
Journal	Journal of Materials Research
Volume	23
Issue number	6
DOIs	https://doi.org/10.1557/jmr.2008.0213
Publication status	Published - Jun 2008
Externally published	Yes

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title = "High ductility of ultrafine-grained steel via phase transformation",

abstract = "There is often a tradeoff between strength and ductility, and the low ductility of ultrafine-grained (UFG) materials has been a major obstacle to their practical structural applications despite their high strength. In this study, we have achieved a ∼40% tensile ductility while increasing the yield strength of FeCrNiMn steel by an order of magnitude via grain refinement and deformation-induced martensitic phase transformation. The strain-rate effect on the inhomogeneous deformation behavior and phase transformation was studied in detail. {\textcopyright} 2008 Materials Research Society.",

author = "S. Cheng and H. Choo and Zhao, {Y. H.} and Wang, {X. L.} and Zhu, {Y. T.} and Wang, {Y. D.} and J. Almer and Liaw, {P. K.} and Jin, {J. E.} and Lee, {Y. K.}",

year = "2008",

month = jun,

doi = "10.1557/jmr.2008.0213",

language = "English",

volume = "23",

pages = "1578--1586",

journal = "Journal of Materials Research",

issn = "0884-2914",

publisher = "Springer International Publishing ",

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TY - JOUR

T1 - High ductility of ultrafine-grained steel via phase transformation

AU - Cheng, S.

AU - Choo, H.

AU - Zhao, Y. H.

AU - Wang, X. L.

AU - Zhu, Y. T.

AU - Wang, Y. D.

AU - Almer, J.

AU - Liaw, P. K.

AU - Jin, J. E.

AU - Lee, Y. K.

PY - 2008/6

Y1 - 2008/6

N2 - There is often a tradeoff between strength and ductility, and the low ductility of ultrafine-grained (UFG) materials has been a major obstacle to their practical structural applications despite their high strength. In this study, we have achieved a ∼40% tensile ductility while increasing the yield strength of FeCrNiMn steel by an order of magnitude via grain refinement and deformation-induced martensitic phase transformation. The strain-rate effect on the inhomogeneous deformation behavior and phase transformation was studied in detail. © 2008 Materials Research Society.

AB - There is often a tradeoff between strength and ductility, and the low ductility of ultrafine-grained (UFG) materials has been a major obstacle to their practical structural applications despite their high strength. In this study, we have achieved a ∼40% tensile ductility while increasing the yield strength of FeCrNiMn steel by an order of magnitude via grain refinement and deformation-induced martensitic phase transformation. The strain-rate effect on the inhomogeneous deformation behavior and phase transformation was studied in detail. © 2008 Materials Research Society.

UR - http://www.scopus.com/inward/record.url?scp=48949117350&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-48949117350&origin=recordpage

U2 - 10.1557/jmr.2008.0213

DO - 10.1557/jmr.2008.0213

M3 - RGC 21 - Publication in refereed journal

SN - 0884-2914

VL - 23

SP - 1578

EP - 1586

JO - Journal of Materials Research

JF - Journal of Materials Research

IS - 6

ER -

High ductility of ultrafine-grained steel via phase transformation

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