Microstructure-based modeling of deformation in Sn-rich (Pb-free) solder alloys

Nikhilesh Chawla, R. S. Sidhu

Research output: Contribution to journalReview articlepeer-review

28 Scopus citations


The mechanical properties of Sn-rich solder alloys are directly related to their heterogeneous microstructure. Thus, numerical modeling of the properties of these alloys is most effective when the microstructure is explicitly incorporated into the model. In this review, we provide several examples where 2D and 3D microstructures have been used to model the material behavior using finite element modeling. These included (a) 3D visualization of the solder microstructure, (b) 3D microstructure-based modeling of tensile behavior, (c) 2D modeling of the effect of intermetallic volume fraction and morphology on shear behavior of solder joints, and (d) prediction of crack growth in solder joints. In all these cases, the experimentally observed behavior matches very well with the microstructure-based models.

Original languageEnglish (US)
Pages (from-to)175-189
Number of pages15
JournalJournal of Materials Science: Materials in Electronics
Issue number1-3
StatePublished - Mar 1 2007

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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