Evolution of grain boundary structure in submicrometer-grained Al-Mg alloy

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

DOI:https://doi.org/10.1016/S1044-5803(96)00178-7· OSTI ID:474231

Horita, Zenji; Nemoto, Minoru ^[1]; Smith, D J ^[2]; Furukawa, Minoru ^[3]; Valiev, R Z ^[4]; Langdon, T G ^[5]

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

This paper presents high-resolution electron microscopy studies of grain boundary structures in a submicrometer-grained Al-3%Mg solid solution alloy produced by an intense plastic straining technique. The studies include the effect of static annealing on the grain boundary structure. Many grain boundaries are in a high-energy nonequilibrium state in the as-strained sample. The nonequilibrium character is retained on some grain boundaries in samples annealed at temperatures below the onset of significant grain growth. The effect of electron irradiation on the grain boundary structure also is examined.

• Sponsoring Organization: National Science Foundation, Washington, DC (United States)
• OSTI ID: 474231
• 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
GRAIN BOUNDARIES
ALUMINIUM BASE ALLOYS
MAGNESIUM ALLOYS
SOLID SOLUTIONS
GRAIN REFINEMENT
GRAIN SIZE
ANNEALING
DISLOCATIONS
GRAIN GROWTH