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Tensile properties and work hardening behaviors of ultrafine grained carbon steel and pure iron processed by warm high pressure torsion. / Ning, Jiang li; Courtois-Manara, Eglantine; Kurmanaeva, Lilia; Ganeev, Artur V.; Valiev, Ruslan Z.; Kübel, Christian; Ivanisenko, Yulia.
в: Materials Science and Engineering A, Том 581, 01.10.2013, стр. 8-15.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Tensile properties and work hardening behaviors of ultrafine grained carbon steel and pure iron processed by warm high pressure torsion
AU - Ning, Jiang li
AU - Courtois-Manara, Eglantine
AU - Kurmanaeva, Lilia
AU - Ganeev, Artur V.
AU - Valiev, Ruslan Z.
AU - Kübel, Christian
AU - Ivanisenko, Yulia
PY - 2013/10/1
Y1 - 2013/10/1
N2 - Using automated crystal-orientation mapping (ACOM) in TEM, we have shown the formation of an ultrafine grained (UFG) structure with predominantly (>90%) high angle grain boundaries in C45 steel and Armco iron after high pressure torsion (HPT) at 350°C. The UFG C45 steel exhibits a combination of high tensile strength and ductility and its mechanical properties were improved significantly compared to the analogously processed Armco iron. The higher strength of the processed C45 steel is attributed to the finer grain size, the highly fragmented cementite particles induced by the HPT deformation. The difference in ductility of the two materials is related to the distinct work hardening behaviors due to the different microstructural characteristics.
AB - Using automated crystal-orientation mapping (ACOM) in TEM, we have shown the formation of an ultrafine grained (UFG) structure with predominantly (>90%) high angle grain boundaries in C45 steel and Armco iron after high pressure torsion (HPT) at 350°C. The UFG C45 steel exhibits a combination of high tensile strength and ductility and its mechanical properties were improved significantly compared to the analogously processed Armco iron. The higher strength of the processed C45 steel is attributed to the finer grain size, the highly fragmented cementite particles induced by the HPT deformation. The difference in ductility of the two materials is related to the distinct work hardening behaviors due to the different microstructural characteristics.
KW - ACOM TEM
KW - High pressure torsion
KW - Strain hardening rate
KW - Tensile behavior
KW - Ultrafine grained materials
UR - http://www.scopus.com/inward/record.url?scp=84879474319&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2013.05.008
DO - 10.1016/j.msea.2013.05.008
M3 - Article
AN - SCOPUS:84879474319
VL - 581
SP - 8
EP - 15
JO - Materials Science and Engineering: A
JF - Materials Science and Engineering: A
SN - 0921-5093
ER -
ID: 35166804