Yong Jiang

Prof. Yong Jiang

orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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4 March 2022 in Journal of Materials Science & Technology
Verified
Journal Article
Closed access
QAQi An
Qi An
LHLujun Huang
Lujun Huang
QQQi Qian
Qi Qian
Yong JiangYong Jiang
Yong Jiang
SWShuai Wang
Shuai Wang
LWLiqin Wang
Liqin Wang

4 December 2017 in Philosophical Magazine
Verified
Journal Article
Closed access
FCFuhua Cao
Fuhua Cao
Yong JiangYong Jiang
Yong Jiang
THTao Hu
Tao Hu
DYDengfeng Yin
Dengfeng Yin
Grain boundary extra free volume (GB EFV) can be considered as fundamental microstructural parameter for polycrystalline or nano-crystalline materials. Here, we present a systematic first principles study on a group of representative symmetric tilt grain boundaries of Al with various EFVs subjected to vacancy formation and Mg segregation. All grain boundaries were constructed using the coincident site lattice (CSL) and the structural unit (SU) models. It was found that the SU model is superior to the CSL in describing FCC-Al GBs, the same as we previously revealed for BCC-Fe. The predicted relation between GB misorientation angle and EFV, and the predicted EFV criteria for a stable GB, both agree with available experimental observations. Vacancy formation and Mg segregation show stronger preference to those GBs with high EFV values, due to the resultant high levels of atomic disorder. These findings not only provide a new, atomistic perspective on the significance of EFV, but also suggest a viable means of predicting GB properties based on direct experimental characterisation of GB EFVs.

10 April 2014 in Journal of Applied Physics
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Journal Article
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LYLitong Yang
Litong Yang
Yong JiangYong Jiang
Yong Jiang
GOG. Robert Odette
G. Robert Odette
TYTakuya Yamamoto
Takuya Yamamoto
ZLZuming Liu
Zuming Liu
YLYong Liu
Yong Liu
Pyrochlore Y2Ti2O7 is a primary precipitate phase in nano-structured ferritic alloys (NFAs) for fission and fusion energy applications. We report a theoretical study for assessing the relative stability of trapping helium in Y2Ti2O7 versus in matrix iron. Various defect structures and the associated energies are examined and compared. Results reveal that helium can be deeply trapped in Y2Ti2O7 and that the corresponding self-interaction is essentially repulsive. Transmutant helium in NFAs prefers to occupy individual octa-interstitial sites in Y2Ti2O7, before forming small clusters in Y2Ti2O7. Helium partitioning in NFAs depends on the number and dispersion of Y2Ti2O7; and thus initially, bubble formation and growth in iron matrix can be largely suppressed. Charge transfer occurs from helium to neighboring oxygen anions, but not to neighboring metal cations, suggesting a general effectiveness of trapping helium in oxides. Reasons for the ultimate fate of helium to form small nm-scale interface bubbles are also discussed.

4 January 2013 in Journal of Materials Science
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Journal Article
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YCY. Q. Chen
Y. Q. Chen
DYD. Q. Yi
D. Q. Yi
Yong JiangYong Jiang
Yong Jiang
BWB. Wang
B. Wang
DXD. Z. Xu
D. Z. Xu
SLS. C. Li
S. C. Li

1 May 2019 in Computational Materials Science
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Journal Article
Closed access
CZChaomin Zhang
Chaomin Zhang
DYDengfeng Yin
Dengfeng Yin
Yong JiangYong Jiang
Yong Jiang
YWYiren Wang
Yiren Wang

28 August 2022 in Acta Materialia
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Journal Article
Closed access
ZLZhengqing Liu
Zhengqing Liu
PMPeipei Ma
Peipei Ma
Yong JiangYong Jiang
Yong Jiang
YWYiren Wang
Yiren Wang
CLChunhui Liu
Chunhui Liu