Comments on a comparison of early and recent work on the effect of trace additions of Cd, In, or Sn on nucleation and growth of θ′ in Al–Cu alloys

The role of trace elements X (Cd, In or Sn) in θ ′ formation in Al–Cu alloys is considered. Two processes may occur: (i) heterogeneous nucleation on small particles of X (mainly at 200 °C and above) and (ii) incorporation of atoms of X into the θ ′ nuclei reducing the misfit with the aluminium matri...

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Bibliographic Details
Published inScripta materialia Vol. 46; no. 5; pp. 389 - 394
Main Authors Silcock, J.M, Flower, H.M
Format Journal Article
LanguageEnglish
Published New York, NY Elsevier Ltd 11.03.2002
Elsevier Science
Subjects
Aluminium alloys
Applied sciences
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Materials science
Metals. Metallurgy
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Precipitation
Solid-phase precipitation
Trace elements
Aluminium alloys
Precipitation
Trace elements
Tin additions
Binary alloys
Theta phase
Aluminium base alloys
Property composition relationship
Alloying effects
Copper alloys
Indium additions
Experimental study
Cadmium additions
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Summary:The role of trace elements X (Cd, In or Sn) in θ ′ formation in Al–Cu alloys is considered. Two processes may occur: (i) heterogeneous nucleation on small particles of X (mainly at 200 °C and above) and (ii) incorporation of atoms of X into the θ ′ nuclei reducing the misfit with the aluminium matrix (principally at lower temperatures).
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1359-6462
1872-8456
DOI:10.1016/S1359-6462(02)00003-9