Physics and model of strengthening by parallel stacking faults

W. W. Jian; G. M. Cheng; W. Z. Xu; C. C. Koch; Q. D. Wang; Y. T. Zhu; S. N. Mathaudhu

doi:10.1063/1.4822323

Physics and model of strengthening by parallel stacking faults

W. W. Jian, G. M. Cheng, W. Z. Xu, C. C. Koch^*, Q. D. Wang^*, Y. T. Zhu^*, S. N. Mathaudhu^*

^*Corresponding author for this work

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

99 Citations (Scopus)

Abstract

We have recently reported that parallel stacking faults (SFs) can tremendously increase the strength of a magnesium alloy. The strengthening is found to increase linearly with the reciprocal of the mean SF spacing, d. In this study we analyze dislocation interactions with SFs, and then propose a physics-based model to explain the observed relationship between yield strength and SFs spacing. Similar to the empirical Hall-Petch relationship for grain size, it is expected that this strengthening mechanism will hold true for a variety of materials engineered with parallel spaced stacking faults over a wide range of fault spacing. © 2013 AIP Publishing LLC.

Original language	English
Article number	133108
Journal	Applied Physics Letters
Volume	103
Issue number	13
DOIs	https://doi.org/10.1063/1.4822323
Publication status	Published - 23 Sept 2013
Externally published	Yes

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title = "Physics and model of strengthening by parallel stacking faults",

abstract = "We have recently reported that parallel stacking faults (SFs) can tremendously increase the strength of a magnesium alloy. The strengthening is found to increase linearly with the reciprocal of the mean SF spacing, d. In this study we analyze dislocation interactions with SFs, and then propose a physics-based model to explain the observed relationship between yield strength and SFs spacing. Similar to the empirical Hall-Petch relationship for grain size, it is expected that this strengthening mechanism will hold true for a variety of materials engineered with parallel spaced stacking faults over a wide range of fault spacing. {\textcopyright} 2013 AIP Publishing LLC.",

author = "Jian, {W. W.} and Cheng, {G. M.} and Xu, {W. Z.} and Koch, {C. C.} and Wang, {Q. D.} and Zhu, {Y. T.} and Mathaudhu, {S. N.}",

year = "2013",

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doi = "10.1063/1.4822323",

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T1 - Physics and model of strengthening by parallel stacking faults

AU - Jian, W. W.

AU - Cheng, G. M.

AU - Xu, W. Z.

AU - Koch, C. C.

AU - Wang, Q. D.

AU - Zhu, Y. T.

AU - Mathaudhu, S. N.

PY - 2013/9/23

Y1 - 2013/9/23

N2 - We have recently reported that parallel stacking faults (SFs) can tremendously increase the strength of a magnesium alloy. The strengthening is found to increase linearly with the reciprocal of the mean SF spacing, d. In this study we analyze dislocation interactions with SFs, and then propose a physics-based model to explain the observed relationship between yield strength and SFs spacing. Similar to the empirical Hall-Petch relationship for grain size, it is expected that this strengthening mechanism will hold true for a variety of materials engineered with parallel spaced stacking faults over a wide range of fault spacing. © 2013 AIP Publishing LLC.

AB - We have recently reported that parallel stacking faults (SFs) can tremendously increase the strength of a magnesium alloy. The strengthening is found to increase linearly with the reciprocal of the mean SF spacing, d. In this study we analyze dislocation interactions with SFs, and then propose a physics-based model to explain the observed relationship between yield strength and SFs spacing. Similar to the empirical Hall-Petch relationship for grain size, it is expected that this strengthening mechanism will hold true for a variety of materials engineered with parallel spaced stacking faults over a wide range of fault spacing. © 2013 AIP Publishing LLC.

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U2 - 10.1063/1.4822323

DO - 10.1063/1.4822323

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 103

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 13

M1 - 133108

ER -

Physics and model of strengthening by parallel stacking faults

Abstract

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