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

General Materials Science

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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",

}

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 - https://www.scopus.com/pages/publications/85090597365

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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