Fatigue crack nucleation assisted by thermal activation

Experimental evidence is presented that very early in the fatigue lifetime of Sn–Pb eutectic solder the fatigue damage is governed by microcrack nucleation. A model for thermally assisted fatigue crack initiation is presented using standard equations for nucleation in phase transformations. Predicti...

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Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 272; no. 1; pp. 5 - 9
Main Authors Fine, M.E, Stolkarts, V, Keer, L.M
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.11.1999
Elsevier
Subjects
Activation
Applied sciences
Brazing. Soldering
Crack
Exact sciences and technology
Fatigue
Joining, thermal cutting: metallurgical aspects
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Nucleation
Solder
Thermal
Solder
Fatigue
Activation
Nucleation
Crack
Thermal
Fatigue life
Phase transformation
Microcrack
Lead alloy
Tin alloy
Experimental study
Activation energy
Crack initiation
Damaging
Fatigue crack
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Summary:Experimental evidence is presented that very early in the fatigue lifetime of Sn–Pb eutectic solder the fatigue damage is governed by microcrack nucleation. A model for thermally assisted fatigue crack initiation is presented using standard equations for nucleation in phase transformations. Predictions of the model are in good agreement with nucleation data for this solder.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0921-5093
1873-4936
DOI:10.1016/S0921-5093(99)00456-6