Source:http://linkedlifedata.com/resource/pubmed/id/17059525
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
Pt 3
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| pubmed:dateCreated |
2006-10-24
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| pubmed:abstractText |
The structure of Al(3)Zr precipitates in Al-1.0Mg-0.6Si-0.5Zr (in wt.%) alloy was investigated using conventional transmission electron microscopy (TEM) and high-resolution TEM (HREM). After annealing of the alloy in the temperature range 450-540 degrees C, spherical precipitates of metastable L1(2)-Al(3)Zr phase appeared nearly homogeneously within the matrix, and elongated particles were found at grain boundaries. L1(2)-structured Al(3)Zr were about 20-30 nm in diameter and coherent with the matrix. Inside some of them, planar faults parallel to {100} planes were revealed by use of HREM. Most probably, these faults are an indication of the transition stage of transformation to the stable D0(23)-type Al(3)Zr phase. The elongated precipitates (about 100 nm) were identified as D0(22)-type Al(3)Zr. Energy-dispersive X-ray analysis showed that they contain, apart from Al, mainly Zr with small amounts of Si. The substitution of Al by Si increased the stability of the D0(22)-Al(3)Zr as compared with D0(23)-Al(3)Zr.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
|
| pubmed:month |
Sep
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| pubmed:issn |
0022-2720
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:volume |
223
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| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
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| pubmed:pagination |
182-4
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| pubmed:year |
2006
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| pubmed:articleTitle |
TEM and HREM study of Al3Zr precipitates in an Al-Mg-Si-Zr alloy.
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| pubmed:affiliation |
Institute of Metallurgy and Materials Science Polish Academy of Sciences, Cracow, Poland. nmlityns@imim-pan.krakow.pl
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| pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|