Results 21 to 30 of about 203,967 (191)

Interface character distributions in WC/Co cemented carbide

Cailiao gongcheng
Electron backscatter diffraction， five parameter analysis， overlap-pole-figure analysis and near coincident site analysis were used to investigate the interface character distributions of WC/WC grain boundaries and WC/Co phase boundaries in WC/Co ...
YU Shunshi, CHEN Song, LI Guanghui, LI Hui, LIN Yan, LI Hongfeng, DAI Siyuan, WU Tizhen, WANG Weiguo   +8 more
doaj   +1 more source

Atomistic Simulation Study of Grain Boundary Segregation and Grain Boundary Migration in Ni-Cr Alloys

Metals
Using Molecular Dynamics (MD) and Monte Carlo (MC) simulations, we studied the grain boundary (GB) segregation under different temperatures and Cr concentrations in Ni-Cr alloys with two distinct grain-boundary structures, i.e., Σ5(310)[010] and Σ101(200)
Pengwei Huang, Qixin Xiao, Wangyu Hu, Bowen Huang, Dingwang Yuan   +4 more
doaj   +1 more source

Molecular Dynamics Calculations of Grain Boundary Mobility in CdTe

Nanomaterials, 2019
Molecular dynamics (MD) simulations have been applied to study mobilities of Σ3, Σ7 and Σ11 grain boundaries in CdTe. First, an existing MD approach to drive the motion of grain boundaries in face-centered-cubic and body-centered-cubic ...
Rodolfo Aguirre, Sharmin Abdullah, Xiaowang Zhou, David Zubia   +3 more
doaj   +1 more source

Effect of Grain Size on Grain Boundary Segregation Thermodynamics of Phosphorus in Interstitial-Free and 2.25Cr-1Mo Steels

Metals, 2017
Several grain sizes were obtained by heat treatment at different temperatures for interstitial-free (IF) and 2.25Cr-1Mo steels. Samples of the steels with different grain sizes were aged at 600 and 680 °C for IF steel and 520 and 560 °C for 2.25Cr-1Mo ...
Yu Zhao, Shenhua Song, Hong Si, Kai Wang
doaj   +1 more source

Arrangement and Decomposition of Grain Boundary Dislocations: Two-Mode Phase-Field Crystal Simulation

Frontiers in Materials, 2022
The grain-boundary dislocation arrangement and decomposition during constant-volume deformation of a nanoscale bi-crystal system in fcc-structured materials were studied by using the two-mode phase-field crystal (2PFC) method.
Huanqing Li, Xiaona Wang, Haibin Zhang, Xiaolin Tian, Hua Hou, Yuhong Zhao, Yuhong Zhao   +6 more
doaj   +1 more source

Analytical Modeling and Computer Simulation of the Transformation of Ellipsoids Nucleated on Random Parallel Planes [PDF]

Materials Research, 2020
A considerable number of engineering materials is polycrystalline. Cahn proposed analytical expressions for transformations nucleated at the grain faces, triple junctions, and quadruple junctions.
Gabriella Maria Silveira de Sá, Harison da Silva Ventura, Weslley Luiz da Silva Assis, Elena Villa, Paulo Rangel Rios   +4 more
doaj   +1 more source

Study on deviation distribution of Σ3 and Σ9 boundaries in Hastelloy C-276 superalloy with different hot rolling reductions

Journal of Materials Research and Technology, 2023
In this study, the deviation distributions of Σ3 and Σ9 grain boundaries in a Hastelloy C-276 sheet were measured using electron backscatter diffraction technology (EBSD) and the grain boundary plane orientation was analyzed using a five-parameter ...
Shengli Guo, Xiaoyu Zhang, Jun Zhong, Shuaishuai Wu, Wei Jiang   +4 more
doaj  

Mechanism for Magnetic Flux Generation in Grain Boundaries of YBCO [PDF]

Phys. Rev. B54, 13269 (1996), 1996
The spontaneously generated magnetic flux observed by Mannhart et. al. (1996) in 45 degree grain boundaries in YBCO was explained by them in terms of a d-wave superconducting order parameter and grain boundary faceting. This article argues that twin boundaries which contact the grain boundary also play an important role.
arxiv   +1 more source

The Annealing Twins of Fe-20Mn-4Al-0.3C Austenitic Steels during Symmetric and Asymmetric Hot Rolling

Metals, 2018
The present work investigates the annealing twins of Fe-20Mn-4Al-0.3C austenitic steels in symmetric hot rolling (SHR) and asymmetric hot rolling (ASHR).
Changsheng Li, Biao Ma, Yanlei Song, Kun Li, Jingbo Dong   +4 more
doaj   +1 more source

Simulating Diffusion Induced Grain Boundary Migration in Binary Fe–Zn

Metals, 2022
A recently developed phase-field model for simulating diffusion-induced grain boundary migration (DIGM) is applied to binary Fe–Zn. The driving force for the boundary migration is assumed to come from the coherency strain energy mechanism suggested by ...
Deepjyoti Mukherjee, Henrik Larsson, Joakim Odqvist   +2 more
doaj   +1 more source