144 citations · 358 across the 29 of their papers we have counts for
8 papers · 1 filter
Atomic resolution observations of silver segregation in a [111] tilt grain boundary in copper
Lena Langenohl, Tobias Brink, Gunther Richter +2
Alloying a material and hence segregating solutes to grain boundaries is one way to tailor a material to the demands of its application. Direct observation of solute segregation is…
Interstitial segregation has the potential to mitigate liquid metal embrittlement in iron
Ali Ahmadian, Daniel Scheiber, Xuyang Zhou +6
The embrittlement of metallic alloys by liquid metals leads to catastrophic material failure and severely impacts their structural integrity. The weakening of grain boundaries by t…
Atomic motifs govern the decoration of grain boundaries by interstitial solutes
Xuyang Zhou, Ali Ahmadian, Baptiste Gault +4
Grain boundaries, the two-dimensional (2D) defects between differently oriented crystals, control mechanical and transport properties of materials. Our fundamental understanding of…
Universality of grain boundary phases in fcc metals: Case study on high-angle [111] symmetric tilt grain boundaries
Tobias Brink, Lena Langenohl, Hanna Bishara +1
Grain boundaries often exhibit ordered atomic structures. Increasing amounts of evidence have been provided by transmission electron microscopy and atomistic computer simulations t…
Green laser powder bed fusion based fabrication and rate-dependent mechanical properties of copper lattices
Sung-Gyu Kang, Ramil Gainov, Daniel Heußen +5
Lattice structures composed of periodic solid frames and pores can be utilized in energy absorption applications due to their high specific strength and large deformation. However,…
Chemical Partitioning at Crystalline Defects in PtAu as a Pathway to Stabilize Electrocatalysts
Xuyang Zhou, Olga Kasian, Ting Luo +8
Dissolution of electrocatalysts during long-term and dynamic operation is a challenging problem in energy conversion and storage devices such as fuel cells and electrolyzers. To de…
Effect of Pore Formation on Redox-Driven Phase Transformation
Xuyang Zhou, Yang Bai, Ayman A. El-Zoka +7
When solid-state redox-driven phase transformations are associated with mass loss, vacancies are produced that develop into pores. These pores can influence the kinetics of certain…
Preferred corrosion pathways for oxygen in Al2Ca-twin boundaries and dislocations
Nicolas J. Peter, Daniela Zander, Xumeng Cao +5
With an ongoing discussion on the oxygen diffusion along crystal defects remaining, it is difficult to study this phenomenon in Al containing intermetallic materials due to its rap…