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

Yoshiharu Kariya, Sho Tajima, Saori Yamada

研究成果: Article査読

11 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)2067-2071
ページ数5
ジャーナルMaterials Transactions
53
12
DOI
出版ステータスPublished - 2012

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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