Effect of La addition on precipitation hardening in Mg–10Dy alloy

A. Prasad; S. Si; U. R. Ghori; G. Thirunavukkarasu; Y. L. Chiu; I. P. Jones; S. Y. Lee; S. S. Singh; N. N. Gosvami; J. Jain

doi:10.1016/j.mtla.2020.100898

Effect of La addition on precipitation hardening in Mg–10Dy alloy

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

^*Corresponding author for this work

Metallurgy and Materials

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

1 Citation (Scopus)

Abstract

The effect of a small lanthanum (La) addition on Mg–10 wt% Dy alloy has been studied using isothermal aging at 120 °C. A combination of scanning transmission electron microscope (STEM) imaging and high-angle annular dark field (HAADF) based electron tomography has been used to characterize the precipitates. β_F^′ and β′ precipitates were determined, where β_F^′ precipitates form a bridge connecting two β′ precipitates, thus forming a continuous network of precipitates. This network results in a significant increase in hardness.

Original language	English
Article number	100898
Journal	Materialia
Volume	14
DOIs	https://doi.org/10.1016/j.mtla.2020.100898
Publication status	Published - Dec 2020

Keywords

Electron tomography
Mg alloys
Microstructure
Precipitation hardening
STEM

ASJC Scopus subject areas

Materials Science(all)

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10.1016/j.mtla.2020.100898

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@article{dea3b700421a42949e857f782ebdaa70,

title = "Effect of La addition on precipitation hardening in Mg–10Dy alloy",

abstract = "The effect of a small lanthanum (La) addition on Mg–10 wt% Dy alloy has been studied using isothermal aging at 120 °C. A combination of scanning transmission electron microscope (STEM) imaging and high-angle annular dark field (HAADF) based electron tomography has been used to characterize the precipitates. βF′ and β′ precipitates were determined, where βF′ precipitates form a bridge connecting two β′ precipitates, thus forming a continuous network of precipitates. This network results in a significant increase in hardness.",

keywords = "Electron tomography, Mg alloys, Microstructure, Precipitation hardening, STEM",

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

year = "2020",

month = dec,

doi = "10.1016/j.mtla.2020.100898",

language = "English",

volume = "14",

journal = "Materialia",

issn = "2589-1529",

publisher = "Elsevier",

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TY - JOUR

T1 - Effect of La addition on precipitation hardening in Mg–10Dy alloy

AU - Prasad, A.

AU - Si, S.

AU - Ghori, U. R.

AU - Thirunavukkarasu, G.

AU - Chiu, Y. L.

AU - Jones, I. P.

AU - Lee, S. Y.

AU - Singh, S. S.

AU - Gosvami, N. N.

AU - Jain, J.

PY - 2020/12

Y1 - 2020/12

N2 - The effect of a small lanthanum (La) addition on Mg–10 wt% Dy alloy has been studied using isothermal aging at 120 °C. A combination of scanning transmission electron microscope (STEM) imaging and high-angle annular dark field (HAADF) based electron tomography has been used to characterize the precipitates. βF′ and β′ precipitates were determined, where βF′ precipitates form a bridge connecting two β′ precipitates, thus forming a continuous network of precipitates. This network results in a significant increase in hardness.

AB - The effect of a small lanthanum (La) addition on Mg–10 wt% Dy alloy has been studied using isothermal aging at 120 °C. A combination of scanning transmission electron microscope (STEM) imaging and high-angle annular dark field (HAADF) based electron tomography has been used to characterize the precipitates. βF′ and β′ precipitates were determined, where βF′ precipitates form a bridge connecting two β′ precipitates, thus forming a continuous network of precipitates. This network results in a significant increase in hardness.

KW - Electron tomography

KW - Mg alloys

KW - Microstructure

KW - Precipitation hardening

KW - STEM

UR - http://www.scopus.com/inward/record.url?scp=85090597365&partnerID=8YFLogxK

U2 - 10.1016/j.mtla.2020.100898

DO - 10.1016/j.mtla.2020.100898

M3 - Article

AN - SCOPUS:85090597365

SN - 2589-1529

VL - 14

JO - Materialia

JF - Materialia

M1 - 100898

ER -

Effect of La addition on precipitation hardening in Mg–10Dy alloy

Abstract

Keywords

ASJC Scopus subject areas

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