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  1. Work hardening and mechanical properties of severely deformed AA3003 by constrained groove pressing
Work hardening and mechanical properties of severely deformed AA3003 by constrained groove pressing
1633 viewed

Work hardening and mechanical properties of severely deformed AA3003 by constrained groove pressing

Khakbaz, F

Work hardening and mechanical properties of severely deformed AA3003 by constrained groove pressing

Khakbaz, F ; Sharif University of Technology | 2012

1633 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.jmapro.2011.07.001
  3. Publisher: 2012
  4. Abstract:
  5. A severe plastic straining method, called constrained groove pressing, is used to improve the microstructure and mechanical properties of non-hardenable 3003 Al-Mn alloy. Williamson-Hall method is utilized to measure the grain size from X-ray diffraction patterns of deformed samples. The results show that ultra-fine grained 3003 alloy having grain size of 580 nm can be successfully produced by constrained groove pressing at room temperature. Mechanical properties of sheets, examined by tensile test, are approximately exhibited 170% improvement in comparison with those of annealed sample. Also, comparing the achieved results with those of aluminum 1100 alloy confirms the rapid rate of grain refinement and mechanical properties improvement in 3003 alloy. This is attributed to the presence of fine dispersoids of Al 6Mn in microstructure of the alloy. Tensile tests demonstrate that the work hardening rate of constrained groove pressed sheet is increased in comparison with that of annealed samples. Investigating of the work hardening by a model reveals why improvement stops after third pass and also work hardening rate diagrams show that only one stage of work hardening is detectable for the sheet after three passes of constrained groove pressing, while in lower pass numbers, more work hardening stages can be observed. © 2011 The Society of Manufacturing Engineers © 2011 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved
  6. Keywords:
  7. AA3003 ; Work hardening ; Al-Mn alloys ; Annealed samples ; Constrained groove pressing ; Deformed samples ; Grain size ; Microstructure and mechanical properties ; Plastic straining ; Rapid rate ; Room temperature ; Tensile tests ; Three-pass ; Ultrafine-grained ; Williamson-Hall ; Work hardening rate ; Alloys ; Aluminum ; Aluminum sheet ; Grain refinement ; Grain size and shape ; Manganese ; Mechanical properties ; Microstructure ; Tensile testing ; X ray diffraction ; Strain hardening
  8. Source: Journal of Manufacturing Processes ; Volume 14, Issue 1 , 2012 , Pages 20-25 ; 15266125 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S1526612511000144