Time dependent hardness and residual stress reduction in a shotpeened aluminum alloy 2024-T351

Omar Suliman Zaroog, Mohd Rashdan Isa, Muhammad Zulhimi Bin Mohd Mohni

Research output: Contribution to journalArticle

Abstract

In common engineering practice, the shot-peened aluminum alloy 2024-T351 is often subjected to loading. After time passes, the residual stress induced by shot peening might relax leading to respective metal cracking and failure. For this study, samples were stored for two years and a comparison of the hardness and microstructure before and after two years storage was carreid out. The primary aim of this study was to determine the effect of time on hardness and microstructure of shot-peened sample, thus to calculate the residual stress relaxation depending on time parameter. The results showed that the hardness and the residual stress of the material reduced after two years. The average reduction of the hardness is 20 % and the residual stress reduction ranged at 47 %.

Original languageEnglish
Pages (from-to)997-1000
Number of pages4
JournalMaterialpruefung/Materials Testing
Volume58
Issue number11-12
DOIs
Publication statusPublished - 01 Nov 2016

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Aluminum alloys
Residual stresses
Hardness
Microstructure
Shot peening
Stress relaxation
Metals

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "In common engineering practice, the shot-peened aluminum alloy 2024-T351 is often subjected to loading. After time passes, the residual stress induced by shot peening might relax leading to respective metal cracking and failure. For this study, samples were stored for two years and a comparison of the hardness and microstructure before and after two years storage was carreid out. The primary aim of this study was to determine the effect of time on hardness and microstructure of shot-peened sample, thus to calculate the residual stress relaxation depending on time parameter. The results showed that the hardness and the residual stress of the material reduced after two years. The average reduction of the hardness is 20 {\%} and the residual stress reduction ranged at 47 {\%}.",
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Time dependent hardness and residual stress reduction in a shotpeened aluminum alloy 2024-T351. / Zaroog, Omar Suliman; Isa, Mohd Rashdan; Bin Mohd Mohni, Muhammad Zulhimi.

In: Materialpruefung/Materials Testing, Vol. 58, No. 11-12, 01.11.2016, p. 997-1000.

Research output: Contribution to journalArticle

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