Microstructural characteristics of an ultrafine grain metal processed with equal-channel angular pressing

Journal Article · Fri Nov 01 00:00:00 EST 1996 · Materials Characterization

DOI:https://doi.org/10.1016/S1044-5803(96)00131-3· OSTI ID:474230

Furukawa, Minoru ^[1]; Horita, Zenji; Nemoto, Minoru ^[2]; Valiev, R Z ^[3]; Langdon, T G ^[4]

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1. Fukuoka Univ. of Education, Munakata, Fukuoka (Japan). Dept. of Technology
2. Kyushu Univ., Fukuoka (Japan). Dept. of Materials Science and Engineering
3. Ufa State Aviation Technical Univ. (Russian Federation). Inst. of Physics of Advanced Materials
4. Univ. of Southern California, Los Angeles, CA (United States)

Equal-channel angular pressing is a procedure for producing a fully dense material with an ultrafine grain size, typically in the submicrometer or nanometer range, by subjecting the material to a very high plastic strain. This paper describes the principle of equal-channel angular pressing and illustrates the capability of the technique by reference to a series of detailed experiments conducted on an Al-3%Mg solid solution alloy in which the grain size was successfully reduced by equal-channel angular pressing from an initial size of {approximately}500{micro}m in the hot-rolled condition to a final size of {approximately}0.2{micro}m.

• Sponsoring Organization: National Science Foundation, Washington, DC (United States)
• OSTI ID: 474230
• Journal Information: Materials Characterization, Vol. 37, Issue 5; Other Information: PBD: Nov 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PRESSING
MICROSTRUCTURE
ALUMINIUM BASE ALLOYS
MAGNESIUM ALLOYS
SOLID SOLUTIONS
DIES
STRAINS
PLASTICITY
GRAIN SIZE
ANNEALING