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Watching the growth of bulk grains during recrystallization of deformed metals.
MedLine Citation:
PMID:  15247474     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We observed the in situ growth of a grain during recrystallization in the bulk of a deformed sample. We used the three-dimensional x-ray diffraction microscope located at the European Synchrotron Radiation Facility in Grenoble, France. The results showed a very heterogeneous growth pattern, contradicting the classical assumption of smooth and spherical growth of new grains during recrystallization. This type of in situ bulk measurement opens up the possibility of obtaining experimental data on scientific topics that before could only be analyzed theoretically on the basis of the statistical characterization of microstructures. For recrystallization, the in situ method includes direct measurements of nucleation and boundary migration through a deformed matrix.
Authors:
S Schmidt; S F Nielsen; C Gundlach; L Margulies; X Huang; D Juul Jensen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  305     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2004 Jul 
Date Detail:
Created Date:  2004-07-12     Completed Date:  2004-08-02     Revised Date:  2007-03-19    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  229-32     Citation Subset:  -    
Affiliation:
Center for Fundamental Research, Metal Structures in Four Dimensions, Risø National Laboratory, 4000 Roskilde, Denmark. soeren.schmidt@risoe.dk
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Comment In:
Science. 2004 Jul 9;305(5681):190-1   [PMID:  15247464 ]

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