Correlation between Continuous/Discontinuous Yielding and Hall-Petch Slope in High Purity Iron

Title
Correlation between Continuous/Discontinuous Yielding and Hall-Petch Slope in High Purity Iron
Author(s)
Si Gao[Si Gao]Akinobu Shibata[Akinobu Shibata]Meichuan Chen[Meichuan Chen]박노근Nobuhiro Tsuji[Nobuhiro Tsuji]
Keywords
ULTRAFINE-GRAINED ALUMINUM; DEFORMATION; STEELS
Issue Date
201401
Publisher
JAPAN INST METALS
Citation
MATERIALS TRANSACTIONS, v.55, no.1, pp.69 - 72
Abstract
High purity iron specimens containing 11 ppm carbon and 8 ppm nitrogen with different grain sizes were fabricated by cold rolling and subsequent annealing. It was found that the specimens exhibited entirely different yielding behavior in tensile tests depending on different cooling processes after annealing. The water-cooled specimens exhibited continuous yielding while the air-cooled ones exhibited discontinuous yielding. It was found that the Hall-Petch slope, k(y), significantly changed depending on the different yielding behaviors.
URI
http://hdl.handle.net/YU.REPOSITORY/33564http://dx.doi.org/10.2320/matertrans.MA201326
ISSN
1345-9678
Appears in Collections:
공과대학 > 신소재공학부 > Articles
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