Mechanism of grain refinement of Mg-Al alloys by SiC inoculation
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Mechanism of grain refinement of Mg-Al alloys by SiC inoculation. / Huang, Yuanding; Kainer, Karl Ulrich; Hort, Norbert.
In: Scripta Materialia, Vol. 64, No. 8, 04.2011, p. 793-796.Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
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 - http://www.scopus.com/inward/record.url?scp=79951518214&partnerID=8YFLogxK
U2 - 10.1016/j.scriptamat.2011.01.005
DO - 10.1016/j.scriptamat.2011.01.005
M3 - Journal articles
AN - SCOPUS:79951518214
VL - 64
SP - 793
EP - 796
JO - Scripta Materialia
JF - Scripta Materialia
SN - 1359-6462
IS - 8
ER -