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Nano-twinning in a γ′ precipitate strengthened Ni-based superalloy

Submitted by Yizhe_Tang on
research
Ni-based superalloy
twinning
Co alloying

Dear Colleagues,

Please see attached a recent article published in Materials Research Letters. In this article, we identified a new twinning pathway in a γ′ precipitate strengthened Ni-based superalloy by high-resolution transmission electron microscopy, and demonstrated, via atomistic simulations, that Co in the γ′ precipitates promotes the new twinning pathway featured with nucleation of one complex stacking fault (CSF) on the middle plane between two separated CSFs. 

Best,

Yizhe

The plausibility of <c + a> dislocation slip on {-12-11} planes in Mg

Submitted by Yizhe_Tang on
research
<c+a> slip
cross-slip
new slip plane
hcp Mg

Dear Colleagues,

Please see the link for a recent article published in Scripta Materialia. In this article, active cross-slip behavior of screw <c + a> dislocations in Mg is observed, and the plausibility of <c + a> dislocation slip on new planes {-12-11} that have hitherto not been considered possible, is shown for the first time.

Thanks to Elsevier’s sharing policy, this article has 50 days' free access, and anyone can read and download it before August 30, 2018.

Inertia of Dislocation Motion and Negative Mechanical Response in Crystals

Submitted by Yizhe_Tang on
research
Dislocation

Dear Colleagues,

Please see attached a recent article published in Scientific Reports on the fundamental nature of dislocation motion in crystals. Leave your comments or whatever you think of it.

Link: https://www.nature.com/articles/s41598-017-18254-5

 

Best,

Yizhe

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