Microstructure and texture of Zr alloys plays a significant role in deciding the material properties and its performance in nuclear reactor. In order to understand the development of microstructure, it is important to know the phase transformations mechanism in these alloys. Dilute Zr-Nb alloys exhibit a range of diffusional, diffusion less and hybrid phase transformations which includes martensitic omega and hydride transformation. With these points in view detail studies on the physical metallurgy aspects of the binary, ternary and quaternary Zirconium base alloys has been carried out in this study. Electron Diffraction and X-ray diffraction techniques have been used to determine the phases, defects and their crystallographic features. Hydriding is most important corrosion problem in the Zirconium cladding alloys. The mechanism of hydride phase transformation and their crystallographic and microstructural aspects has been presented in detail in some Zirconium alloys. Zirconium alloys being crystallographically asymmetric it shows deformation and annealing texture. Result of the studies on bulk and micro texture in some zirconium alloys and some micro-textural aspects on hydride formation is presented in this paper.
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17th International Conference on Nuclear Engineering
July 12–16, 2009
Brussels, Belgium
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4351-2
PROCEEDINGS PAPER
Evolution of Microstructure, Microtexture and Texture in Dilute Zirconium Based Structural Components of Pressurised Heavy Water Reactors
D. Srivastava,
D. Srivastava
Bhabha Atomic Research Center, Mumbai, India
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K. V. Mani Krishna,
K. V. Mani Krishna
Bhabha Atomic Research Center, Mumbai, India
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S. Neogy,
S. Neogy
Bhabha Atomic Research Center, Mumbai, India
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G. K. Dey,
G. K. Dey
Bhabha Atomic Research Center, Mumbai, India
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I. Samajdar,
I. Samajdar
Indian Institute of Technology Bombay, Mumbai, India
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S. Banerjee
S. Banerjee
Bhabha Atomic Research Center, Mumbai, India
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D. Srivastava
Bhabha Atomic Research Center, Mumbai, India
K. V. Mani Krishna
Bhabha Atomic Research Center, Mumbai, India
S. Neogy
Bhabha Atomic Research Center, Mumbai, India
G. K. Dey
Bhabha Atomic Research Center, Mumbai, India
I. Samajdar
Indian Institute of Technology Bombay, Mumbai, India
S. Banerjee
Bhabha Atomic Research Center, Mumbai, India
Paper No:
ICONE17-75274, pp. 401-409; 9 pages
Published Online:
February 25, 2010
Citation
Srivastava, D, Mani Krishna, KV, Neogy, S, Dey, GK, Samajdar, I, & Banerjee, S. "Evolution of Microstructure, Microtexture and Texture in Dilute Zirconium Based Structural Components of Pressurised Heavy Water Reactors." Proceedings of the 17th International Conference on Nuclear Engineering. Volume 1: Plant Operations, Maintenance, Engineering, Modifications and Life Cycle; Component Reliability and Materials Issues; Next Generation Systems. Brussels, Belgium. July 12–16, 2009. pp. 401-409. ASME. https://doi.org/10.1115/ICONE17-75274
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