Results 81 to 90 of about 8,297 (199)

Atomistic and First Principles Studies of Pb Segregation to Al Grain Boundaries and its Influence on Thermal Stability and Mechanical Behavior

, 2009
Nanostructured materials have received much interest because they exhibit different properties compared to coarse-grained polycrystals of the same material.
Purohit, Yojna
core  

Effects of grain boundary misorientation on the solute segregation in austenitic stainless steels

, 2010
[[abstract]]The purpose of this study is to understand the effects of grain boundary misorientation on the solute segregation in austenitic stainless steels irradiated by protons.
Duh,T. S.;Kai,J. J.;Chen,F. R.;Wang,L. H.
core   +1 more source

Point-Defect Segregation and Space-Charge Potentials at the Σ5(310)[001] Grain Boundary in Ceria

Solids
The atomistic structure and point-defect thermodynamics of the model Σ5(310)[001] grain boundary in CeO2 were explored with atomistic simulations. An interface with a double-diamond-shaped structural repeat unit was found to have the lowest energy ...
Adrian L. Usler, Henrik J. Heelweg, Roger A. De Souza, Annalena R. Genreith-Schriever   +3 more
doaj   +1 more source

Grain Boundary Segregation Predicted by Quantum-Accurate Segregation Spectra but not by Classical Models

In alloys, solute segregation at grain boundaries is classically attributed to three driving forces: a high solution enthalpy, a high size mismatch, and a high difference in interfacial energy.
Naunheim, Yannick, Wagih, Malik, Lei, Tianjiao, Schuh, Christopher A.   +3 more
core   +2 more sources

Inhibition of the second phase precipitation and improvement of intergranular corrosion resistance by boron segregation at the grain boundary of S31254 superaustenitic stainless steel

Corrosion Communications
The inhibition of Mo segregation and phase precipitation is vital for improving the hot workability and corrosion resistance of superaustentic stainless steels (SASS).
Jian Wang, Zhiqiang Liu, Haiyu Tian, Peide Han, Yaiza Gonzalez-Garcia   +4 more
doaj   +1 more source

The Effect of Vacancies on Grain Boundary Segregation in Ferromagnetic fcc Ni. [PDF]

Nanomaterials (Basel), 2020
Mazalová M, Všianská M, Pavlů J, Šob M.   +3 more
europepmc   +1 more source

Interfacial Segregation in Bicrystals: A Database for Grain Boundary Design of Polycrystals

, 1996
Physical meaning of thermodynamic parameters of segregation obtained from measurements of chemical composition of grain boundaries in poly crystals and bi crystals, and calculated for individual grain boundary sites is discussed.
Pavel Lejček
core   +1 more source

Secondary grain boundary dislocations alter segregation energy spectra

Nature Communications
Grain boundaries (GBs) trigger structure-specific chemical segregation of solute atoms. According to the three-dimensional (3D) topology of grains, GBs - although defined as two-dimensional defects - cannot practically be free of curvature. This leads to
Xinren Chen, William Gonçalves, Yi Hu, Yipeng Gao, Patrick Harrison, Gerhard Dehm, Baptiste Gault, Wolfgang Ludwig, Edgar Rauch, Xuyang Zhou, Dierk Raabe   +10 more
doaj   +1 more source

Grain Boundary Solute Segregation in Vanadium

Vanadium alloys are a candidate structural material in nuclear fusion applications, where the presence of grain boundaries can improve mechanical properties and act as a sink for radiation- induced defects.
Ng, Daniel S.
core  

Grain boundary structure and solute segregation in titanium-doped sapphire bicrystals [PDF]

, 2002
Solute segregation to ceramic grain boundaries governs material processing and microstructure evolution, and can strongly influence material properties critical to engineering performance.
Taylor, Seth T., Taylor, Seth T
core