| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5453984 | Journal of Nuclear Materials | 2017 | 11 Pages |
Abstract
Transmission electron microscopy (TEM) and Secondary Ion Mass Spectroscopy (SIMS) were used to investigate the microstructural and chemical evolution in a zirconium alloy processed by high pressure torsion (HPT) under 4 GPa at room temperature. Results showed that the grain sizes were significantly reduced and no α to Ï phase transformation was detected after the HPT processing. A new phenomenon of which the Cr atoms diffused from the second phase particles (SPPs) to the zirconium matrix was confirmed. Further TEM analysis indicated that a large number of dislocations were generated especially in the vicinity of the SPPs. The possible mechanisms for the absence of the α to Ï phase transformation and the Cr depletion of the SPPs were discussed.
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Authors
Jian Zheng, Wei Zhou, Jinchao Zhang, Xiankun Liu, Qijie Feng, Xianghai An, Bin Tang, Xiaosong Zhou, Hongzu Wang, Shuming Peng,