Transformation-induced extraordinary ductility in an ultrafine-grained alloy with nanosized precipitates

Y. K. Lee; J. E. Jin; Y. Q. Ma

doi:10.1016/j.scriptamat.2007.06.047

Transformation-induced extraordinary ductility in an ultrafine-grained alloy with nanosized precipitates

Y. K. Lee, J. E. Jin, Y. Q. Ma

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

An ultrafine-grained (UFG) alloy with nanosized precipitates was fabricated by strain-induced martensitic transformation and the reverse transformation through a conventional rolling and annealing process. The UFG alloy possesses a high yield stress (860 MPa), five times higher than that of coarse-grained alloy, very high tensile stress (1140 MPa), and exceptional uniform elongation of above 30% due to both precipitates and strain-induced martensite that form in these alloys during tensile tests.

Original language	English
Pages (from-to)	707-710
Number of pages	4
Journal	Scripta Materialia
Volume	57
Issue number	8
DOIs	https://doi.org/10.1016/j.scriptamat.2007.06.047
Publication status	Published - 2007 Oct

Bibliographical note

Funding Information:
This study was supported by a grant-in-aid for the National Core Research Center program of MOST and KOSEF. We are thankful to R.Z. Valiev and E. Ma for critical reading of the manuscript and helpful comments.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2007.06.047

Cite this

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abstract = "An ultrafine-grained (UFG) alloy with nanosized precipitates was fabricated by strain-induced martensitic transformation and the reverse transformation through a conventional rolling and annealing process. The UFG alloy possesses a high yield stress (860 MPa), five times higher than that of coarse-grained alloy, very high tensile stress (1140 MPa), and exceptional uniform elongation of above 30% due to both precipitates and strain-induced martensite that form in these alloys during tensile tests.",

author = "Lee, {Y. K.} and Jin, {J. E.} and Ma, {Y. Q.}",

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AU - Jin, J. E.

AU - Ma, Y. Q.

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AB - An ultrafine-grained (UFG) alloy with nanosized precipitates was fabricated by strain-induced martensitic transformation and the reverse transformation through a conventional rolling and annealing process. The UFG alloy possesses a high yield stress (860 MPa), five times higher than that of coarse-grained alloy, very high tensile stress (1140 MPa), and exceptional uniform elongation of above 30% due to both precipitates and strain-induced martensite that form in these alloys during tensile tests.

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Transformation-induced extraordinary ductility in an ultrafine-grained alloy with nanosized precipitates

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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