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Dynamic strain aging of a commercial Al-Mg-Si-Cu alloy during equal channel angular extrusion process

Tabatabaei, N ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jallcom.2010.04.125
  3. Publisher: 2010
  4. Abstract:
  5. In this research, the occurrence of dynamic strain aging (DSA) phenomenon during equal channel angular extrusion (ECAE) of a commercial air cooled Al-Mg-Si-Cu alloy is investigated. In order to detect the negative strain rate sensitivity behaviour associated with DSA, samples were ECAE-ed at various temperatures and strain rates. Subsequently, the extruded billets were subjected to mechanical and physical tests and it was found that at a certain ECAE temperature range there is a critical strain rate above which DSA occurs. The implication of the results to strengthening of dilute solid solutions is discussed
  6. Keywords:
  7. Al-Mg-Si-Cu alloys ; Critical strains ; Dynamic strain aging ; ECAE temperature ; Equal channel angular extrusion ; Extruded billets ; Strain rate sensitivity ; Aluminum ; Analog differential analyzers ; Copper alloys ; Dynamics ; Extrusion ; Mechanical properties ; Silicon ; Silicon alloys ; Strain rate
  8. Source: Journal of Alloys and Compounds ; Volume 502, Issue 1 , July , 2010 , Pages 59-62 ; 09258388 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0925838810009783