Strain Hardening Characteristics of 99.9% Pure Silver at Large Strains

Doohyun Cho, Jung Hoon Kim, Hyo Chan Kwon, Kwon Hee Kim

Research output: Contribution to journalArticlepeer-review

Abstract

Silver has wide-ranging applications, such as industrial equipment, semiconductors, musical instruments, and silverware. Despite its diversified applications, publications on its strain-hardening characteristics are rare. In this work, tensile and hardness tests were performed for cold-rolled specimens at different levels of thickness reduction after full annealing. Up to the true strain of 1.7, strain-hardening characteristics and variations in Rockwell hardness were obtained for 99.9% pure silver. The consistency between the true stress–strain curve and the hardness data was confirmed through finite-element modeling and analysis of the hardness test procedure. Strain-hardened pure silver was verified to have yield strength comparable to sterling silver. For applications where both of purity and deformation resistance are important, strain hardened pure silver could be a practical candidate.

Original languageEnglish
Pages (from-to)1061-1067
Number of pages7
JournalInternational Journal of Precision Engineering and Manufacturing
Volume22
Issue number6
DOIs
Publication statusPublished - 2021 Jun

Keywords

  • Cold rolling
  • Finite-element analysis
  • Ford
  • Hardness test
  • Rockwell
  • Silver
  • Stress–strain curves

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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