Phase field modeling of beta1 precipitation in WE54 alloy

Yipeng Gao; Hong Liu; Rongpei Shi; Ning Zhou; Zheng Long Xu; Jian Feng Nie; Y Wang

doi:10.1002/9781118359228.ch6

Phase field modeling of beta1 precipitation in WE54 alloy

Yipeng Gao, Hong Liu, Rongpei Shi, Ning Zhou, Zheng Long Xu, Jian Feng Nie, Y Wang

Materials Science & Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

2 Citations (Scopus)

Abstract

WE54 (Mg-5wt Y-2w1 Nd-2wt HRE), which has high strength and lightweight at elevated temperatures, has been identified as one of the most successful magnesium alloys. The strength of WF54 can be achieved via precipitation strengthening by aging at 150-250?C during which precipitations of intermediate phases ? 1 and ? and equilibrium phase ? take place. In order to understand the microstructure evolution of ? 1 phase and its effects on dislocation gliding, a phase field model of ? 1 precipitation has been developed. Model inputs, including lattice parameters, precipitate-matrix orientation relationship, elastic constants and free energy data, are obtained from experimental characterization, ab initio calculations and thermodynamic databases. Through computer simulations, the equilibrium shape and spatial distribution of the ? 1 precipitates are quantitatively determined. The interactions between precipitates and gliding basal dislocations and corresponding effects on the strength of the alloy have been investigated.

Original language	English
Title of host publication	Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition
Subtitle of host publication	Orlando, Florida, USA; March 11-15, 2012
Editors	Suveen N Mathaudhu, Wim H Sillekens, Neale R Neelameggham, Norbert Hort
Place of Publication	Hoboken NJ USA
Publisher	John Wiley & Sons
Pages	377 - 382
Number of pages	6
ISBN (Electronic)	9781118359228
ISBN (Print)	9781118291214
DOIs	https://doi.org/10.1002/9781118359228.ch6
Publication status	Published - 2012
Event	Magnesium Technology Symposium 2012 - Orlando, United States of America Duration: 11 Mar 2012 → 15 Mar 2012 https://link.springer.com/book/10.1007/978-3-319-48203-3 (Proceedings front matter)

Conference

Conference	Magnesium Technology Symposium 2012
Country	United States of America
City	Orlando
Period	11/03/12 → 15/03/12
Internet address	https://link.springer.com/book/10.1007/978-3-319-48203-3 (Proceedings front matter)

Access to Document

10.1002/9781118359228.ch6

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Cite this

Gao, Y., Liu, H., Shi, R., Zhou, N., Xu, Z. L., Nie, J. F., & Wang, Y. (2012). Phase field modeling of beta1 precipitation in WE54 alloy. In S. N. Mathaudhu, W. H. Sillekens, N. R. Neelameggham, & N. Hort (Eds.), Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition: Orlando, Florida, USA; March 11-15, 2012 (pp. 377 - 382). John Wiley & Sons. https://doi.org/10.1002/9781118359228.ch6

Gao, Yipeng ; Liu, Hong ; Shi, Rongpei ; Zhou, Ning ; Xu, Zheng Long ; Nie, Jian Feng ; Wang, Y. / Phase field modeling of beta1 precipitation in WE54 alloy. Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition: Orlando, Florida, USA; March 11-15, 2012. editor / Suveen N Mathaudhu ; Wim H Sillekens ; Neale R Neelameggham ; Norbert Hort. Hoboken NJ USA : John Wiley & Sons, 2012. pp. 377 - 382

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title = "Phase field modeling of beta1 precipitation in WE54 alloy",

abstract = "WE54 (Mg-5wt Y-2w1 Nd-2wt HRE), which has high strength and lightweight at elevated temperatures, has been identified as one of the most successful magnesium alloys. The strength of WF54 can be achieved via precipitation strengthening by aging at 150-250?C during which precipitations of intermediate phases ? 1 and ? and equilibrium phase ? take place. In order to understand the microstructure evolution of ? 1 phase and its effects on dislocation gliding, a phase field model of ? 1 precipitation has been developed. Model inputs, including lattice parameters, precipitate-matrix orientation relationship, elastic constants and free energy data, are obtained from experimental characterization, ab initio calculations and thermodynamic databases. Through computer simulations, the equilibrium shape and spatial distribution of the ? 1 precipitates are quantitatively determined. The interactions between precipitates and gliding basal dislocations and corresponding effects on the strength of the alloy have been investigated.",

author = "Yipeng Gao and Hong Liu and Rongpei Shi and Ning Zhou and Xu, {Zheng Long} and Nie, {Jian Feng} and Y Wang",

year = "2012",

doi = "10.1002/9781118359228.ch6",

language = "English",

isbn = "9781118291214",

pages = "377 -- 382",

editor = "Mathaudhu, {Suveen N} and Sillekens, {Wim H} and Neelameggham, {Neale R} and Norbert Hort",

booktitle = "Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition",

publisher = "John Wiley & Sons",

address = "United States of America",

note = "Magnesium Technology Symposium 2012 ; Conference date: 11-03-2012 Through 15-03-2012",

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Gao, Y, Liu, H, Shi, R, Zhou, N, Xu, ZL, Nie, JF & Wang, Y 2012, Phase field modeling of beta1 precipitation in WE54 alloy. in SN Mathaudhu, WH Sillekens, NR Neelameggham & N Hort (eds), Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition: Orlando, Florida, USA; March 11-15, 2012. John Wiley & Sons, Hoboken NJ USA, pp. 377 - 382, Magnesium Technology Symposium 2012, Orlando, United States of America, 11/03/12. https://doi.org/10.1002/9781118359228.ch6

Phase field modeling of beta1 precipitation in WE54 alloy. / Gao, Yipeng; Liu, Hong; Shi, Rongpei; Zhou, Ning; Xu, Zheng Long; Nie, Jian Feng; Wang, Y.

Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition: Orlando, Florida, USA; March 11-15, 2012. ed. / Suveen N Mathaudhu; Wim H Sillekens; Neale R Neelameggham; Norbert Hort. Hoboken NJ USA : John Wiley & Sons, 2012. p. 377 - 382.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

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T1 - Phase field modeling of beta1 precipitation in WE54 alloy

AU - Gao, Yipeng

AU - Liu, Hong

AU - Shi, Rongpei

AU - Zhou, Ning

AU - Xu, Zheng Long

AU - Nie, Jian Feng

AU - Wang, Y

PY - 2012

Y1 - 2012

N2 - WE54 (Mg-5wt Y-2w1 Nd-2wt HRE), which has high strength and lightweight at elevated temperatures, has been identified as one of the most successful magnesium alloys. The strength of WF54 can be achieved via precipitation strengthening by aging at 150-250?C during which precipitations of intermediate phases ? 1 and ? and equilibrium phase ? take place. In order to understand the microstructure evolution of ? 1 phase and its effects on dislocation gliding, a phase field model of ? 1 precipitation has been developed. Model inputs, including lattice parameters, precipitate-matrix orientation relationship, elastic constants and free energy data, are obtained from experimental characterization, ab initio calculations and thermodynamic databases. Through computer simulations, the equilibrium shape and spatial distribution of the ? 1 precipitates are quantitatively determined. The interactions between precipitates and gliding basal dislocations and corresponding effects on the strength of the alloy have been investigated.

AB - WE54 (Mg-5wt Y-2w1 Nd-2wt HRE), which has high strength and lightweight at elevated temperatures, has been identified as one of the most successful magnesium alloys. The strength of WF54 can be achieved via precipitation strengthening by aging at 150-250?C during which precipitations of intermediate phases ? 1 and ? and equilibrium phase ? take place. In order to understand the microstructure evolution of ? 1 phase and its effects on dislocation gliding, a phase field model of ? 1 precipitation has been developed. Model inputs, including lattice parameters, precipitate-matrix orientation relationship, elastic constants and free energy data, are obtained from experimental characterization, ab initio calculations and thermodynamic databases. Through computer simulations, the equilibrium shape and spatial distribution of the ? 1 precipitates are quantitatively determined. The interactions between precipitates and gliding basal dislocations and corresponding effects on the strength of the alloy have been investigated.

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BT - Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition

A2 - Mathaudhu, Suveen N

A2 - Sillekens, Wim H

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PB - John Wiley & Sons

CY - Hoboken NJ USA

T2 - Magnesium Technology Symposium 2012

Y2 - 11 March 2012 through 15 March 2012

ER -

Gao Y, Liu H, Shi R, Zhou N, Xu ZL, Nie JF et al. Phase field modeling of beta1 precipitation in WE54 alloy. In Mathaudhu SN, Sillekens WH, Neelameggham NR, Hort N, editors, Magnesium Technology 2012 - Held During TMS 2012 Annual Meeting and Exhibition: Orlando, Florida, USA; March 11-15, 2012. Hoboken NJ USA: John Wiley & Sons. 2012. p. 377 - 382 https://doi.org/10.1002/9781118359228.ch6