Results 51 to 60 of about 8,297 (199)

Ab Initio Study of the Combined Effects of Alloying Elements and H on Grain Boundary Cohesion in Ferritic Steels

Metals, 2019
Hydrogen enhanced decohesion is expected to play a major role in ferritic steels, especially at grain boundaries. Here, we address the effects of some common alloying elements C, V, Cr, and Mn on the H segregation behaviour and the decohesion mechanism ...
Aparna P. A. Subramanyam, Abril Azócar Guzmán, Smobin Vincent, Alexander Hartmaier, Rebecca Janisch   +4 more
doaj   +1 more source

PSEUDO-MOLECULAR DYNAMICS STUDY 0F GRAIN BOUNDARY SEGREGATION

, 1992
The segregation of bismuth atoms on the [101] tilt copper grain boundaries Σ3 (111) 70.53°,Σ33 (545) 58.99°, Σ11(323) 50.48° and Σ9 (212) 38.94° has been studied by pseudo-molecular dynamicsusing the empirical N-body potentials.
彭八一, 周富信, 吴希俊, 汤奇恒   +3 more
core  

Grain Boundary Specific Segregation in Nanocrystalline Fe(Cr)

, 2016
A cross-correlative precession electron diffraction – atom probe tomography investigation of Cr segregation in a Fe(Cr) nanocrystalline alloy was undertaken. Solute segregation was found to be dependent on grain boundary type.
Yu, Xiao-xiang, Martens, Richard L., Zhou, Xuyang, Thompson, Gregory B., Kaub, Tyler   +4 more
core   +1 more source

Microstructure and properties of (rare earth) doped oxide ceramics [PDF]

A study of alumina (AI203 ) and magnesium aluminate spinel (MgAb04) was undertaken with the aim of investigating the changes in properties and microstructural characteristics upon doping with specific rare earth elements.
Perkins, James M.
core  

Dataset - Computed Entropy Spectra for Grain Boundary Segregation in Polycrystals

, 2023
Grain boundary segregation entropy database from embedded atom method potentials.
Nutth Tuchinda (16379475), Christopher Schuh (16384277)   +1 more
core   +1 more source

Radiation-Induced Grain Boundary Segregation in Austenitic Stainless Steels [PDF]

, 1994
Radiation-induced segregation (RIS) to grain boundaries in Fe-Ni-Cr-Si stainless alloys has been measured as a function of irradiation temperature and dose.
J. S. Vetrano, L. A. Charlot, S. M. Bruemmer, E. P. Simonen   +3 more
core   +2 more sources

Influence of grain boundary segregation on the deformation behavior of nanocrystalline Ni50Co50 solid solution alloys investigated by molecular dynamics simulations

Journal of Materials Research and Technology
Molecular dynamics simulations were carried out to investigate the tensile deformation behavior of Ni50Co50 solid solution nanocrystalline alloys with varying degrees of grain boundary segregation.
Rui Liu, Luyao Cheng, Liang Chen, Jinfu Li, Lingti Kong   +4 more
doaj   +1 more source

Grain boundary diffusion and segregation of Cr in Ni Σ11(1̄13)[110] bicrystals: Decoding the role of grain boundary defects

Grain boundary diffusion of Cr in a near Σ11(1̄13)[110] Ni bicrystal is measured over a temperature interval between 503 K and 1203 K using the radiotracer technique. The grain boundary diffusion coefficients, Dgb, and the triple products, P=s⋅δ⋅Dgb, are
Smirnova, D., Brink, T., Scheiber, D., Brink, Tobias, Sevlikar, Shraddha, Irmer, D., Tas, Bengü, Razumovskiy, Vsevolod, Esin, V., Liebscher, Christian, Smirnova, Daria, Tas, B., Razumovskiy, V., Esin, Vladimir, Muralikrishna, G., Wilde, Gerhard, Liebscher, C., Divinski, S., Muralikrishna, G. Mohan, Gaertner, D., Starikov, Sergei, Sevlikar, S., Divinski, Sergiy, Starikov, S., Wilde, G., Gaertner, Daniel, Scheiber, Daniel, Irmer, Daniel   +27 more
core   +2 more sources

STRUCTURAL EFFECTS ON GRAIN BOUNDARY SEGREGATION, HARDENING AND FRACTURE

, 1985
Recent experimental studies of structural effects on grain boundary segregation, hardening and fracture in metals and alloys are discussed. It has been found that grain boundary segregation, hardening and fracture are difficult to occur at low angle ...
T. Watanabe
core   +1 more source

Segregation of Ti4+ and Ce4+ impurity-cations at the grain boundaries of CeO2-TiO2-ZrO2 ceramics for overcoming strength deterioration after grain coarsening

Materials & Design
The deterioration of the mechanical properties of ZrO2-based ceramics after grain coarsening has become a key challenge hindering their wide application as advanced structural materials. The present work reports that novel TiO2-CeO2-ZrO2 ternary ceramics
Pengyu Lin, Xin You, Junjie Song, Qiuan Sun, Tao Li, Yin Du, Haifeng Wang, Yongsheng Zhang, Litian Hu   +8 more
doaj   +1 more source