Effects of transformation on texture and iodine stress corrosion cracking resistance of zircaloy sheet

Hwang, Seongpil; Ryoo, H. S.; Morris, J. W.

doi:10.1007/bf02664990

Cited by 7 publications

(3 citation statements)

References 20 publications

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“…An orientation in Euler space has unique or several Euler angles based on symmetry [39]. A fiber is a series of orientations generalized to a single class for identification-the origin of such a fiber may have links with prior processing [2,6,10,24,39]. In the present case, however, drawing such a link is premature at this stage, the fiber generalization was mainly for convenience.…”

Section: Starting Microstructures and Texturesmentioning

confidence: 97%

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Explaining absence of texture development in cold rolled two-phase Zr–2.5 wt% Nb alloy

et al. 2003

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In the present study, two distinct starting microstructures of Zr-2.5 wt% Nb have been used: (1) single-phase α hcp martensitic structure; and (2) two-phase, 10% bcc β and rest hcp α, Widmanstätten structure. In the second case, two types of α were present-near grain boundary predominantly single-phase α (about 5% of the total α) and α plates in an apparently continuous β matrix. Both (1) and (2) had similar starting crystallographic texture of the hcp α phase and were deformed by unidirectional and cross rolling. In the two-phase structure the changes in the bulk texture on cold rolling was found to be insignificant, while in the single-phase material noticeable textural changes were observed. Taylor type deformation texture models predicted textural changes in single-phase structure but failed to predict the observed lack of textural development in the two-phase material. Microtexture observations showed that α plates remained approximately single crystalline after cold rolling, while the β matrix underwent significant orientational changes. Relative hardening, estimated by X-ray peak broadening, was observed mainly in β phase; while aspect ratio of α plates remained unchanged with cold rolling-indicating absence of effective macroscopic strain in the hcp α plates. Based on microstructural and microtextural observations, a simple model is proposed in which the plastic flow is mainly confined to the β matrix within which the α plates are subjected to 'in-plane rigid body rotation'. The model explains the observed lack of textural developments in the two-phase structure.

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Section: Starting Microstructures and Texturesmentioning

confidence: 97%

“…Zirconium alloys have, in general, less than ideal c/a ratio and exhibit a strong texture development during fabrication [20]. The crystallographic texture and the microstructure usually play major roles in determining in-reactor performance of Zr alloys [17,18,[21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Explaining absence of texture development in cold rolled two-phase Zr–2.5 wt% Nb alloy

et al. 2003

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“…doi:10.1016/j.jnucmat.2004.07.003 unanswered questions on the developments of bulk and microtexture. Texture strongly affects properties of the Zr based alloys, as used in the nuclear industry [1,2,[5][6][7][8][9][10][11][12][13][14][15][16]]. An optimized texture development is naturally one of the emphases in a TMP sequence.…”

Section: Introductionmentioning

confidence: 99%

Textural and microstructural developments during fabrication of Zr–2.5Nb pressure tubes

Kumar

Vanitha

Samajdar

et al. 2004

Journal of Nuclear Materials

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Effect of Mo on recrystallization characteristics of Zr–Nb–(Sn)–Mo experimental alloys

Chun

Hwang

Kim

et al. 1999

Journal of Nuclear Materials

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Effects of transformation on texture and iodine stress corrosion cracking resistance of zircaloy sheet

Cited by 7 publications

References 20 publications

Explaining absence of texture development in cold rolled two-phase Zr–2.5 wt% Nb alloy

Explaining absence of texture development in cold rolled two-phase Zr–2.5 wt% Nb alloy

Textural and microstructural developments during fabrication of Zr–2.5Nb pressure tubes

Effect of Mo on recrystallization characteristics of Zr–Nb–(Sn)–Mo experimental alloys

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