Results 41 to 50 of about 8,297 (199)

Polycrystalline Grain Boundary Solute Segregation at Finite Sizes and Temperatures

, 2023
Engineering defect chemistry allows novel pathways for controlling bulk material behavior, especially for high-defect-density materials like nanocrystalline alloys.
Tuchinda, Nutth
core  

Phase Field Simulation of Grain Growth Kinetics with Solute Drag in Fe-Mo-Nb Alloy

Yuanzineng kexue jishu, 2023
The addition of trace Mo and Nb elements to the Fe-Cr-Al ferrite alloy of the accident tolerant fuel (ATF) cladding can play a role in solid solution strengthening and precipitation.
CHENG Gang;CHEN Yupeng;WANG Qingyu
doaj   +1 more source

Molecular Dynamics Study on Influence of P Segregation at BCC Fe Grain Boundary on Tensile Deformation Behavior

Yuanzineng kexue jishu
Grain boundaries are important microstructures in metallic materials, and dislocation nucleation on grain boundaries plays a crucial role in material deformation.
CHEN Mengyao,  HE Xinfu,  MAO Wenlue,  ZHAO Yongpeng,  WANG Shumin,  ZHAO Hongrui
doaj   +1 more source

Grain boundary segregation and intergranular failure [PDF]

, 1980
Trace elements and impurities often segregate strongly to grain boundaries in metals and alloys. Concentrations of these elements at grain boundaries are often 10/sup 3/ to 10/sup 5/ times as great as their overall concentration in the alloy.
White, C. L.
core  

Nano-scale grain growth inhibited by reducing grain boundary energy through solute segregation

, 2004
Combining Gibbs adsorption equation and McLean's grain boundary segregation model derives an empirical relation for isothermal grain growth. This relation predicts that driving grain boundary energy to zero is possible in alloy with high segregation ...
Kirchheim, Reiner, Liu, F.
core   +1 more source

Solute Segregation at Σ11(113)[110] Grain Boundary and Effect of the Segregation on Grain Boundary Cohesion in Aluminum from First Principles

, 2010
We investigate the energy of segregation of solute Ca at symmetric tilt grain boundary in aluminum from the first-principles calculations. As energy of segregation of Ca is negative, Ca atoms tend to segregate at the grain boundary.
Tokuteru Uesugi, Kenji Higashi
core   +1 more source

First-principles Study of Hydrogen-induced Embrittlement in Fe Grain Boundary with Cr Segregation [PDF]

, 2015
First-principles tensile tests were performed to investigate the effect of Cr segregation on the hydrogen-induced embrittlement in Fe grain boundaries.
Chino, Yasumasa, Hakamada, Masataka, Yuasa, Motohiro, Mabuchi, Mamoru   +3 more
core   +1 more source

Effect of Grain Boundary Segregation of Residual Elements Cu-As-Sn on Intergranular Embrittlement Fracture of Low Alloying Steel

Teshugang, 2009
Effect of 0. 10Cu-0.07As-0.05Sn on segregation in solidification, grain boundary segregation in heat treatment and ductility of low alloying steel (%:0.
耿明山, 王新华, 张炯明
doaj  

Current progress on solute segregation at interfaces in Mg alloys

Materials Research Letters
Solute segregation at interfaces has emerged as a pivotal microstructural design strategy for enhancing the mechanical properties and thermal stability of magnesium (Mg) alloys.
Lirong Xiao, Xinjian Chen, Bo Gao, Xinxin Dong, Zaifan Pan, Hao Zhou   +5 more
doaj   +1 more source

Topological grain boundary segregation transitions

Science
Engineering the structure of grain boundaries (GBs) by solute segregation is a promising strategy to tailor the properties of polycrystalline materials. Solute segregation triggering phase transitions at GBs has been suggested theoretically to offer different pathways to design interfaces, but an understanding of their intrinsic atomistic nature is ...
Vivek Devulapalli, Enze Chen, Tobias Brink, Timofey Frolov, Christian H. Liebscher   +4 more
openaire   +4 more sources