Mechanism of grain refinement of Mg-Al alloys by SiC inoculation

Yuanding Huang; Karl Ulrich Kainer; Norbert Hort

doi:10.1016/j.scriptamat.2011.01.005

Mechanism of grain refinement of Mg-Al alloys by SiC inoculation

Yuanding Huang^*
, Karl Ulrich Kainer
, Norbert Hort

^*Korrespondierende/r Autor/-in für diese Arbeit

Helmholtz-Zentrum Hereon

Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › Begutachtung

88 Zitate (Scopus)

Abstract

The mechanism of grain refinement was investigated for Mg-Al alloys inoculated with SiC particles. Contrary to the previously reported Al ₄C₃ hypothesis, the ternary carbide Al₂MgC ₂ was observed, which has a crystal structure closer to that of Mg than to that of Al₄C₃. In the centre of the grains, one or more "hillocks" enriched in Al and C were observed. Based on the observed phenomena, a novel mechanism is suggested to explain the grain refinement of Mg-Al alloys with the addition of SiC particles.

Originalsprache	Englisch
Zeitschrift	Scripta Materialia
Jahrgang	64
Ausgabenummer	8
Seiten (von - bis)	793-796
Seitenumfang	4
ISSN	1359-6462
DOIs	https://doi.org/10.1016/j.scriptamat.2011.01.005
Publikationsstatus	Erschienen - 04.2011
Extern publiziert	Ja

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Ingenieurwissenschaften

ASJC Scopus Sachgebiete

Maschinenbau
Werkstoffwissenschaften (insg.)
Physik der kondensierten Materie
Metalle und Legierungen
Werkstoffmechanik

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10.1016/j.scriptamat.2011.01.005

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title = "Mechanism of grain refinement of Mg-Al alloys by SiC inoculation",

abstract = "The mechanism of grain refinement was investigated for Mg-Al alloys inoculated with SiC particles. Contrary to the previously reported Al 4C3 hypothesis, the ternary carbide Al2MgC 2 was observed, which has a crystal structure closer to that of Mg than to that of Al4C3. In the centre of the grains, one or more {"}hillocks{"} enriched in Al and C were observed. Based on the observed phenomena, a novel mechanism is suggested to explain the grain refinement of Mg-Al alloys with the addition of SiC particles.",

keywords = "AlMgC, Carbon inoculation, Grain refining, Magnesium alloys, Solidification, Engineering",

author = "Yuanding Huang and Kainer, \{Karl Ulrich\} and Norbert Hort",

year = "2011",

month = apr,

doi = "10.1016/j.scriptamat.2011.01.005",

language = "English",

volume = "64",

pages = "793--796",

journal = "Scripta Materialia",

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T1 - Mechanism of grain refinement of Mg-Al alloys by SiC inoculation

AU - Huang, Yuanding

AU - Kainer, Karl Ulrich

AU - Hort, Norbert

PY - 2011/4

Y1 - 2011/4

N2 - The mechanism of grain refinement was investigated for Mg-Al alloys inoculated with SiC particles. Contrary to the previously reported Al 4C3 hypothesis, the ternary carbide Al2MgC 2 was observed, which has a crystal structure closer to that of Mg than to that of Al4C3. In the centre of the grains, one or more "hillocks" enriched in Al and C were observed. Based on the observed phenomena, a novel mechanism is suggested to explain the grain refinement of Mg-Al alloys with the addition of SiC particles.

AB - The mechanism of grain refinement was investigated for Mg-Al alloys inoculated with SiC particles. Contrary to the previously reported Al 4C3 hypothesis, the ternary carbide Al2MgC 2 was observed, which has a crystal structure closer to that of Mg than to that of Al4C3. In the centre of the grains, one or more "hillocks" enriched in Al and C were observed. Based on the observed phenomena, a novel mechanism is suggested to explain the grain refinement of Mg-Al alloys with the addition of SiC particles.

KW - AlMgC

KW - Carbon inoculation

KW - Grain refining

KW - Magnesium alloys

KW - Solidification

KW - Engineering

UR - https://www.scopus.com/pages/publications/79951518214

U2 - 10.1016/j.scriptamat.2011.01.005

DO - 10.1016/j.scriptamat.2011.01.005

M3 - Journal articles

AN - SCOPUS:79951518214

SN - 1359-6462

VL - 64

SP - 793

EP - 796

JO - Scripta Materialia

JF - Scripta Materialia

IS - 8

ER -

Mechanism of grain refinement of Mg-Al alloys by SiC inoculation

Abstract

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