Microstructural evolution and creep resistance in Mg-Sn-Ca alloy

Do Hyung Kim; Hyun Kyu Lim; Ju Youn Lee; Won Tae Kim; Do Hyang Kim

Microstructural evolution and creep resistance in Mg-Sn-Ca alloy

Do Hyung Kim, Hyun Kyu Lim, Ju Youn Lee, Won Tae Kim, Do Hyang Kim

Department of Materials Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

Microstructural evolution of Mg-Sn-Ca system depending on the Ca/Sn ratio and their high temperature properties have been investigated in the present study. As-cast microstructures of the Mg-Sn-Ca alloys exhibit typical dendritic structure consisted of primary α-Mg and secondary solidification phases. The secondary solidification phases have been identified as Mg₂Sn, CaMgSn or Mg₂Ca depending on the Ca/Sn ratio. With small amount of Ca addition (∼1wt%), eutectic Mg₂Sn phase disappears and CaMgSn phase is newly formed. Eutectic Mg₂Sn phase at grain boundary deteriorates the creep resistance. On the other hand, Mg₂Ca phase remarkably improves the creep properties. This result is attributed to the inherent thermally stability and precipitation of the Mg₂Ca phase in matrix.

Original language	English
Title of host publication	Magnesium Technology 2008
Pages	417-420
Number of pages	4
Publication status	Published - 2008
Event	Magnesium Technology 2008 - New Orleans, LA, United States Duration: 2008 Mar 9 → 2008 Mar 13

Publication series

Name	Magnesium Technology
ISSN (Print)	1545-4150

Other

Other	Magnesium Technology 2008
Country/Territory	United States
City	New Orleans, LA
Period	08/3/9 → 08/3/13

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

@inproceedings{1b7960ddc2194cf0ace642bc38be0677,

title = "Microstructural evolution and creep resistance in Mg-Sn-Ca alloy",

abstract = "Microstructural evolution of Mg-Sn-Ca system depending on the Ca/Sn ratio and their high temperature properties have been investigated in the present study. As-cast microstructures of the Mg-Sn-Ca alloys exhibit typical dendritic structure consisted of primary α-Mg and secondary solidification phases. The secondary solidification phases have been identified as Mg2Sn, CaMgSn or Mg2Ca depending on the Ca/Sn ratio. With small amount of Ca addition (∼1wt%), eutectic Mg2Sn phase disappears and CaMgSn phase is newly formed. Eutectic Mg2Sn phase at grain boundary deteriorates the creep resistance. On the other hand, Mg2Ca phase remarkably improves the creep properties. This result is attributed to the inherent thermally stability and precipitation of the Mg2Ca phase in matrix.",

author = "Kim, {Do Hyung} and Lim, {Hyun Kyu} and Lee, {Ju Youn} and Kim, {Won Tae} and Kim, {Do Hyang}",

year = "2008",

language = "English",

isbn = "9780873397117",

series = "Magnesium Technology",

pages = "417--420",

booktitle = "Magnesium Technology 2008",

note = "Magnesium Technology 2008 ; Conference date: 09-03-2008 Through 13-03-2008",

}

TY - GEN

T1 - Microstructural evolution and creep resistance in Mg-Sn-Ca alloy

AU - Kim, Do Hyung

AU - Lim, Hyun Kyu

AU - Lee, Ju Youn

AU - Kim, Won Tae

AU - Kim, Do Hyang

PY - 2008

Y1 - 2008

N2 - Microstructural evolution of Mg-Sn-Ca system depending on the Ca/Sn ratio and their high temperature properties have been investigated in the present study. As-cast microstructures of the Mg-Sn-Ca alloys exhibit typical dendritic structure consisted of primary α-Mg and secondary solidification phases. The secondary solidification phases have been identified as Mg2Sn, CaMgSn or Mg2Ca depending on the Ca/Sn ratio. With small amount of Ca addition (∼1wt%), eutectic Mg2Sn phase disappears and CaMgSn phase is newly formed. Eutectic Mg2Sn phase at grain boundary deteriorates the creep resistance. On the other hand, Mg2Ca phase remarkably improves the creep properties. This result is attributed to the inherent thermally stability and precipitation of the Mg2Ca phase in matrix.

AB - Microstructural evolution of Mg-Sn-Ca system depending on the Ca/Sn ratio and their high temperature properties have been investigated in the present study. As-cast microstructures of the Mg-Sn-Ca alloys exhibit typical dendritic structure consisted of primary α-Mg and secondary solidification phases. The secondary solidification phases have been identified as Mg2Sn, CaMgSn or Mg2Ca depending on the Ca/Sn ratio. With small amount of Ca addition (∼1wt%), eutectic Mg2Sn phase disappears and CaMgSn phase is newly formed. Eutectic Mg2Sn phase at grain boundary deteriorates the creep resistance. On the other hand, Mg2Ca phase remarkably improves the creep properties. This result is attributed to the inherent thermally stability and precipitation of the Mg2Ca phase in matrix.

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M3 - Conference contribution

AN - SCOPUS:45749095883

SN - 9780873397117

T3 - Magnesium Technology

SP - 417

EP - 420

BT - Magnesium Technology 2008

T2 - Magnesium Technology 2008

Y2 - 9 March 2008 through 13 March 2008

ER -

Microstructural evolution and creep resistance in Mg-Sn-Ca alloy

Abstract

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