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Effect of Sn Addition in Preprecipitation Stage in Al-Cu Alloys: A Correlative Transmission Electron Microscopy and Atom Probe Tomography Study

Abstract:

The effect of a trace addition of Sn (0.01 at. pct) in Al-1.7Cu (at. pct) alloy in the preprecipitation stage has been investigated by atom probe tomography (APT) and transmission electron microscopy (TEM). APT demonstrates that Sn clusters form independently of Cu in the as-quenched (AQ) state in Al-1.7Cu-0.01Sn alloy. The Sn clusters lead to the rapid nucleation of β-Sn precipitates during increased temperature aging. The APT analysis also indicates that Cu tends to cluster with Sn when the...

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Publication status:
Published

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Publisher copy:
10.1007/s11661-012-1111-y

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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Ringer, SP More by this author
Journal:
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
Volume:
43A
Issue:
7
Pages:
2192-2202
Publication date:
2012-07-05
DOI:
EISSN:
1543-1940
ISSN:
1073-5623
URN:
uuid:76f35713-7a21-4343-acdb-448103d1a60b
Source identifiers:
360394
Local pid:
pubs:360394
Language:
English

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