caa a22 4500 388021578 CHVBK 20180307124926.0 cr unu---uuuuu 161130e199802 xx s 000 0 eng 10.1557/JMR.1998.0057 doi S0884291400042941 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0057 Observations of grain boundary structure in submicrometer-grained Cu and Ni using high-resolution electron microscopy [Elektronische Daten] Submicrometer-grained (SMG) structures were produced in Cu and Ni using an intense plastic straining technique, and the grain boundaries and their vicinities were observed by high-resolution electron microscopy. The grain boundaries exhibited zigzag configurations with irregular arrangements of facets and steps, and thus they were found to be in a high-energy nonequilibrium state. A similar conclusion was reached earlier for SMG Al-Mg solid solution alloys which have much lower melting points than Cu and Ni, suggesting that nonequilibrium grain boundaries are a typical feature of metals processed by intense plastic straining. Copyright © Materials Research Society 1998 Horita Zenji Department of Materials Science and Engineering, Faculty of Engineering 36, Kyushu University, Fukuoka 812-81, Japan Smith David J. Center for Solid State Science and Department of Physics and Astronomy, Arizona State University, Tempe, Arizona 85287 Nemoto Minoru Department of Materials Science and Engineering, Faculty of Engineering 36, Kyushu University, Fukuoka 812-81, Japan Valiev Ruslan Z. Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa 450000, Russia Langdon Terence G. Departments of Materials Science and Mechanical Engineering, University of Southern California, Los Angeles, California 90089-1453 Journal of Materials Research Cambridge University Press 13/2(1998-02), 446-450 0884-2914 13:2<446 1998 13 JMR https://doi.org/10.1557/JMR.1998.0057 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0057 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Horita Zenji Department of Materials Science and Engineering, Faculty of Engineering 36, Kyushu University, Fukuoka 812-81, Japan NATIONALLICENCE 700 1- Smith David J. Center for Solid State Science and Department of Physics and Astronomy, Arizona State University, Tempe, Arizona 85287 NATIONALLICENCE 700 1- Nemoto Minoru Department of Materials Science and Engineering, Faculty of Engineering 36, Kyushu University, Fukuoka 812-81, Japan NATIONALLICENCE 700 1- Valiev Ruslan Z. Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa 450000, Russia NATIONALLICENCE 700 1- Langdon Terence G. Departments of Materials Science and Mechanical Engineering, University of Southern California, Los Angeles, California 90089-1453 NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/2(1998-02), 446-450 0884-2914 13:2<446 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge