On the influence of dispersoids on the particle stimulated nucleation of recrystallization

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Recrystallization of Al alloys is controlled by precipitates. Whereas large particles are generally assumed to promote recrystallization by particle stimulated nucleation, finely dispersed precipitates, either already present in the as-deformed state or precipitating during the recrystallization anneal, are known to strongly retard the progress of recrystallization. It was the aim of this study to elucidate these concurring effects of large particles, and small dispersoids as well as of a supersaturation of solutes on recrystallization in a ternary Al-Fe-Si model alloy. Samples were prepared with different pre-annealing treatments to produce different states of precipitation and supersaturation. Evolution of the microstructure and ... continued below

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11 p.

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Engler, O. December 31, 1996.

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Description

Recrystallization of Al alloys is controlled by precipitates. Whereas large particles are generally assumed to promote recrystallization by particle stimulated nucleation, finely dispersed precipitates, either already present in the as-deformed state or precipitating during the recrystallization anneal, are known to strongly retard the progress of recrystallization. It was the aim of this study to elucidate these concurring effects of large particles, and small dispersoids as well as of a supersaturation of solutes on recrystallization in a ternary Al-Fe-Si model alloy. Samples were prepared with different pre-annealing treatments to produce different states of precipitation and supersaturation. Evolution of the microstructure and of the crystallographic texture was followed during cold rolling and recrystallization. Conclusions were drawn on the efficiency of recrystallization nucleation at the various nucleation sites and, especially, on the influence of dispersoids on recrystallization.

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11 p.

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OSTI as DE97001957

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  • ReX `96: international conference on recrystallization and related phenomena, Monterey, CA (United States), 21-24 Oct 1996

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  • Other: DE97001957
  • Report No.: LA-UR--96-3751
  • Report No.: CONF-9610242--2
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 441099
  • Archival Resource Key: ark:/67531/metadc680727

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  • December 31, 1996

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  • July 25, 2015, 2:21 a.m.

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  • Feb. 25, 2016, 10:09 p.m.

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Engler, O. On the influence of dispersoids on the particle stimulated nucleation of recrystallization, article, December 31, 1996; New Mexico. (digital.library.unt.edu/ark:/67531/metadc680727/: accessed December 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.