Outstanding enhancement in critical resolved shear stress of basal slip with precipitation in Mg-10Dy-0.7La alloy: A micro-pillar compression study

U. R. Ghori; A. Prasad; Y. Lu; Y. L. Chiu; I. P. Jones; S. S. Singh; N. N. Gosvami; J. Jain

doi:10.1016/j.matlet.2021.131265

Outstanding enhancement in critical resolved shear stress of basal slip with precipitation in Mg-10Dy-0.7La alloy: A micro-pillar compression study

U. R. Ghori, A. Prasad, Y. Lu, Y. L. Chiu, I. P. Jones, S. S. Singh, N. N. Gosvami, J. Jain^*

^*Corresponding author for this work

Metallurgy and Materials

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

Abstract

The strengthening effect of precipitates on the operation of basal < a > slip in Mg-10Dy-0.7La has been studied. Micropillar compression was performed on grains of solution-treated and peak-aged specimens selected to favour basal < a > slip. The CRSS of basal < a > slip was calculated from the stress–strain curves. The peak-aged alloy showed a remarkable increase in the CRSS for basal < a > slip as compared to that of solution-treated specimen: the highest reported increase for any Mg-RE alloy. Increased CRSS can be rationalised by considering network of precipitates.

Original language	English
Article number	131265
Number of pages	5
Journal	Materials Letters
Volume	308
Issue number	B
Early online date	10 Nov 2021
DOIs	https://doi.org/10.1016/j.matlet.2021.131265
Publication status	Published - 1 Feb 2022

Bibliographical note

Publisher Copyright:
© 2021 Elsevier B.V.

Keywords

Basal slip
CRSS
Electron microscopy
Micro-pillar
Microstructure

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Outstanding enhancement in critical resolved shear stress of basal slip with precipitation in Mg-10Dy-0.7La alloy: A micro-pillar compression study",

abstract = "The strengthening effect of precipitates on the operation of basal < a > slip in Mg-10Dy-0.7La has been studied. Micropillar compression was performed on grains of solution-treated and peak-aged specimens selected to favour basal < a > slip. The CRSS of basal < a > slip was calculated from the stress–strain curves. The peak-aged alloy showed a remarkable increase in the CRSS for basal < a > slip as compared to that of solution-treated specimen: the highest reported increase for any Mg-RE alloy. Increased CRSS can be rationalised by considering network of precipitates.",

keywords = "Basal slip, CRSS, Electron microscopy, Micro-pillar, Microstructure",

author = "Ghori, {U. R.} and A. Prasad and Y. Lu and Chiu, {Y. L.} and Jones, {I. P.} and Singh, {S. S.} and Gosvami, {N. N.} and J. Jain",

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T1 - Outstanding enhancement in critical resolved shear stress of basal slip with precipitation in Mg-10Dy-0.7La alloy

T2 - A micro-pillar compression study

AU - Ghori, U. R.

AU - Prasad, A.

AU - Lu, Y.

AU - Chiu, Y. L.

AU - Jones, I. P.

AU - Singh, S. S.

AU - Gosvami, N. N.

AU - Jain, J.

PY - 2022/2/1

Y1 - 2022/2/1

N2 - The strengthening effect of precipitates on the operation of basal < a > slip in Mg-10Dy-0.7La has been studied. Micropillar compression was performed on grains of solution-treated and peak-aged specimens selected to favour basal < a > slip. The CRSS of basal < a > slip was calculated from the stress–strain curves. The peak-aged alloy showed a remarkable increase in the CRSS for basal < a > slip as compared to that of solution-treated specimen: the highest reported increase for any Mg-RE alloy. Increased CRSS can be rationalised by considering network of precipitates.

AB - The strengthening effect of precipitates on the operation of basal < a > slip in Mg-10Dy-0.7La has been studied. Micropillar compression was performed on grains of solution-treated and peak-aged specimens selected to favour basal < a > slip. The CRSS of basal < a > slip was calculated from the stress–strain curves. The peak-aged alloy showed a remarkable increase in the CRSS for basal < a > slip as compared to that of solution-treated specimen: the highest reported increase for any Mg-RE alloy. Increased CRSS can be rationalised by considering network of precipitates.

KW - Basal slip

KW - CRSS

KW - Electron microscopy

KW - Micro-pillar

KW - Microstructure

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VL - 308

JO - Materials Letters

JF - Materials Letters

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Outstanding enhancement in critical resolved shear stress of basal slip with precipitation in Mg-10Dy-0.7La alloy: A micro-pillar compression study

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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