Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 446-450 |
| Number of pages | 5 |
| Journal | Journal of Materials Research |
| Volume | 13 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jan 1 1998 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Observations of grain boundary structure in submicrometer-grained Cu and Ni using high-resolution electron microscopy. / Horita, Zenji; Smith, David J.; Nemoto, Minoru; Valiev, Ruslan Z.; Langdon, Terence G.
In: Journal of Materials Research, Vol. 13, No. 2, 01.01.1998, p. 446-450.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Observations of grain boundary structure in submicrometer-grained Cu and Ni using high-resolution electron microscopy
AU - Horita, Zenji
AU - Smith, David J.
AU - Nemoto, Minoru
AU - Valiev, Ruslan Z.
AU - Langdon, Terence G.
PY - 1998/1/1
Y1 - 1998/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0031997491&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031997491&partnerID=8YFLogxK
U2 - 10.1557/JMR.1998.0057
DO - 10.1557/JMR.1998.0057
M3 - Article
AN - SCOPUS:0031997491
VL - 13
SP - 446
EP - 450
JO - Journal of Materials Research
JF - Journal of Materials Research
SN - 0884-2914
IS - 2
ER -