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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Recrystallization in two-phase alloys

Baker, Ian January 1982 (has links)
This study is concerned with the effect of particles, which are too small to produce Particle Stimulated Nucleation, on recrystallization. A single crystal model system of internally oxidised copper-aluminium was deformed by rolling. The deformed and annealed structures were investigated both electron-microscopically and optically. Measurements of the stored energy of deformation were combined with measurements of the recrystallization kinetics by the use of anisothermal differential scanning calorimetry. The effect of particles on the mechanical properties of metals and the microstructural inhomogeneities produced during deformation in the single phase are reviewed. The literature concerning recrystallization is surveyed with emphasis on the possible sites for nucleation and the effects of a second phase. Comparison of the deformed structure of copper-alumina and copper revealed that cells form at lower strains in the particle-containing material. These cells are smaller than those found in copper and show alignment with {111} planes. Dynamic recovery at higher strains leads to the formation of a banded structure from these cells. Microbands were found at all strains, they increased in frequency and decreased in width as the strain increased. Misorientation measurements using STEM microdiffraction could find no evidence of a slip homogenizing effect due to the particles, in fact larger misorientations were found across cell boundaries in particle-containing material. Addition of particles raised the stored energy and this increase was greater at higher strains. A comparison of the recrystallization kinetics of particle-hardened and single phase material found complex behaviour in the former. Increasing the strain could lead to a change from complete suppression, to retardation, to acceleration of recrystallization in two-phase alloys. A model based on the properties of microbands and particle pinning is presented to account for these effects.
12

Scanning electron microscopy applied to studies of recrystallization in cubic metals

Pease, Nicolas Clive January 1979 (has links)
No description available.
13

Deformation and recrystallisation of Cu-2%Fe

Chan, Hang-ting., 陳杏婷. January 2000 (has links)
published_or_final_version / Mechanical Engineering / Master / Master of Philosophy
14

Recrystallisation in single crystal nickel-based superalloys

Mathur, Harshal January 2013 (has links)
No description available.
15

X-ray diffraction measurement of the change in the lattice parameter of high-purity aluminum during annealing

Eubig, Casimir, 1940- January 1965 (has links)
No description available.
16

Effect of stress relaxation on the kinetics of recovery and recrystallization in hot worked ETP copper

Vazquez Brisen̄o, Lucio. January 1980 (has links)
No description available.
17

Effect of aluminum on recrystallization and precipitation of Nb HSLA steels

Wang, Ganlin. January 1986 (has links)
No description available.
18

Microstructural evolution and recrystallization modeling in AA6013 and compositional variants of 6013

Thanaboonsombut, Buncha 12 1900 (has links)
No description available.
19

Static recrystallization and precipitation in titanium-microalloyed steels containing different levels of manganese

Macchione, Alfred. January 1985 (has links)
No description available.
20

Effect of the joint addition of aluminum and molybdenum on the precipitation and recrystallization in HSLA steels

Anderson, Danny. January 1986 (has links)
No description available.

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