Influence of crystallographic orientation on fatigue reliability of β-Sn and β-Sn micro-joint

Yoshiharu Kariya, Sho Tajima, Saori Yamada

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Crystallographic anisotropy of static mechanical characteristics and fatigue reliability of β-Sn single crystal was investigated in this study. The static mechanical properties of β-Sn strongly depend on crystallographic orientation and yield stress is extremely high in the [001] orientation compared with other orientations. The low cycle fatigue life of β-Sn also exhibits remarkable orientation dependence and the life of β-Sn can be predicted by inelastic strain energy density regardless of crystallographic orientation. The finite element analysis based on these experimental data revealed that the thermal fatigue lives of BGA joints, in the case of β-Sn single crystal, differ remarkably as the inelastic strain energy density produced per cycle differs in conjunction with the difference in crystallographic orientation.

Original languageEnglish
Pages (from-to)2067-2071
Number of pages5
JournalMaterials Transactions
Volume53
Issue number12
DOIs
Publication statusPublished - 2012

Fingerprint

Fatigue of materials
Strain energy
Single crystals
Thermal fatigue
fatigue life
Yield stress
Anisotropy
flux density
thermal fatigue
Finite element method
Mechanical properties
cycles
single crystals
mechanical properties
anisotropy

Keywords

  • β-tin
  • Crystallographic anisotropy
  • Finit element analysis (FEA)
  • Low-cycle fatigue
  • Mechanical properties
  • Single crystal
  • Thermal fatigue

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Influence of crystallographic orientation on fatigue reliability of β-Sn and β-Sn micro-joint. / Kariya, Yoshiharu; Tajima, Sho; Yamada, Saori.

In: Materials Transactions, Vol. 53, No. 12, 2012, p. 2067-2071.

Research output: Contribution to journalArticle

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