Deformation mechanisms of nanocrystalline hexagonal close-packed metals

Guangping Zheng

Deformation mechanisms of nanocrystalline hexagonal close-packed metals

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

Using molecular dynamics simulation, a reverse martensitic transformation from hexagonal close-packed (hep) to face-centered cubic (fee) structure is observed in nanocrystalline (nc) cobalt and zirconium undergoing plastic deformation. In nc-cobalt hcp-to-fcc transformation is prevalent and deformation twinning is rarely observed. The transformation mechanism involves the motion of Shockley partial dislocation 1/3〈1100〉 in every other (0001) hcp /(111)fcc plane. From the simulation results, it is suggested that the interaction among partials should be considered to understand the deformation mechanisms of hep nc metals.

Original language	English
Title of host publication	Mechanics of Nanoscale Materials and Devices
Pages	43-48
Number of pages	6
Volume	924
Publication status	Published - 1 Dec 2006
Externally published	Yes
Event	2006 MRS Spring Meeting - San Frnacisco, CA, United States Duration: 17 Apr 2006 → 21 Apr 2006

Conference

Conference	2006 MRS Spring Meeting
Country/Territory	United States
City	San Frnacisco, CA
Period	17/04/06 → 21/04/06

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

Cite this

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title = "Deformation mechanisms of nanocrystalline hexagonal close-packed metals",

abstract = "Using molecular dynamics simulation, a reverse martensitic transformation from hexagonal close-packed (hep) to face-centered cubic (fee) structure is observed in nanocrystalline (nc) cobalt and zirconium undergoing plastic deformation. In nc-cobalt hcp-to-fcc transformation is prevalent and deformation twinning is rarely observed. The transformation mechanism involves the motion of Shockley partial dislocation 1/3〈1100〉 in every other (0001) hcp /(111)fcc plane. From the simulation results, it is suggested that the interaction among partials should be considered to understand the deformation mechanisms of hep nc metals.",

author = "Guangping Zheng",

year = "2006",

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language = "English",

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N2 - Using molecular dynamics simulation, a reverse martensitic transformation from hexagonal close-packed (hep) to face-centered cubic (fee) structure is observed in nanocrystalline (nc) cobalt and zirconium undergoing plastic deformation. In nc-cobalt hcp-to-fcc transformation is prevalent and deformation twinning is rarely observed. The transformation mechanism involves the motion of Shockley partial dislocation 1/3〈1100〉 in every other (0001) hcp /(111)fcc plane. From the simulation results, it is suggested that the interaction among partials should be considered to understand the deformation mechanisms of hep nc metals.

AB - Using molecular dynamics simulation, a reverse martensitic transformation from hexagonal close-packed (hep) to face-centered cubic (fee) structure is observed in nanocrystalline (nc) cobalt and zirconium undergoing plastic deformation. In nc-cobalt hcp-to-fcc transformation is prevalent and deformation twinning is rarely observed. The transformation mechanism involves the motion of Shockley partial dislocation 1/3〈1100〉 in every other (0001) hcp /(111)fcc plane. From the simulation results, it is suggested that the interaction among partials should be considered to understand the deformation mechanisms of hep nc metals.

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M3 - Conference article published in proceeding or book

SN - 1558998810

SN - 9781558998810

VL - 924

SP - 43

EP - 48

BT - Mechanics of Nanoscale Materials and Devices

T2 - 2006 MRS Spring Meeting

Y2 - 17 April 2006 through 21 April 2006

ER -

Deformation mechanisms of nanocrystalline hexagonal close-packed metals

Abstract

Conference

ASJC Scopus subject areas

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