The effect of electrical current on tensile properties and vibration characteristics of Sn-9Zn-1Cu lead-free solder

Fei-Yi Hung, Truan-Sheng Lui, Li Hui Chen, Ji Ge You

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The effect of electrical current on the microstructure, the tensile properties and vibration deformation mechanisms of the Sn-9Zn-1 Cu leadfree solder were examined in this study. Results showed that Zn-rich phase, Sn-Zn eutectic, Cu5Zn8 intermetallic compounds and proeutectic Sn-rich phase existed in the matrix of a Sn-9Zn-1Cu specimen. An electrical current flowing for a short duration was able to improve the tensile strength of the solder alloy. But prolonging the duration more than 7 hours led to a deterioration in the tensile mechanical properties and vibration resistance. Under both constant force and initial-deflection conditions, the electrical current caused the vibration life of the specimens to deteriorate. Lamellar-deformed structures (LDS) decreased and Cu5Zn8 fractured easily, which in turn decreased the crack propagation resistance.

Original languageEnglish
Pages (from-to)2935-2941
Number of pages7
JournalMaterials Transactions
Volume47
Issue number12
DOIs
Publication statusPublished - 2006 Dec 1

Fingerprint

tensile properties
solders
Tensile properties
Soldering alloys
vibration
Lamellar structures
Eutectics
Intermetallics
Deterioration
Crack propagation
Tensile strength
crack propagation
deterioration
eutectics
Mechanical properties
tensile strength
Microstructure
intermetallics
deflection
mechanical properties

All Science Journal Classification (ASJC) codes

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

Cite this

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The effect of electrical current on tensile properties and vibration characteristics of Sn-9Zn-1Cu lead-free solder. / Hung, Fei-Yi; Lui, Truan-Sheng; Chen, Li Hui; You, Ji Ge.

In: Materials Transactions, Vol. 47, No. 12, 01.12.2006, p. 2935-2941.

Research output: Contribution to journalArticle

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