On the primary spacing and microsegregation of cellular dendrites in laser deposited Ni-Nb alloys [0.03%]
激光沉积Ni-Nb合金中树枝晶胞状组织的初生间距及其偏析研究
Supriyo Ghosh,Li Ma,Nana Ofori-Opoku et al.
Supriyo Ghosh et al.
In this study, an alloy phase-field model is used to simulate solidification microstructures at different locations within a solidified molten pool. The temperature gradient G and the solidification velocity V are obtained from a macroscopi...
Forming limit prediction using a self-consistent crystal plasticity framework: a case study for body-centered cubic materials [0.03%]
基于自洽晶体塑性框架的成形极限预测：一种体心立方材料的案例研究
Youngung Jeong,Minh-Son Pham,Mark Iadicola et al.
Youngung Jeong et al.
A rate-dependent self-consistent crystal plasticity model was incorporated with the Marciniak-Kuczyński model in order to study the effects of anisotropy on the forming limits of BCC materials. The computational speed of the model was impr...
Simulation of temperature, stress and microstructure fields during laser deposition of Ti-6Al-4V [0.03%]
Ti-6Al-4V激光沉积过程中温度、应力与显微组织场的模拟研究
Supriyo Ghosh,Kevin McReynolds,Jonathan E Guyer et al.
Supriyo Ghosh et al.
We study the evolution of prior columnar β phase, interface L phase, and α phase during directional solidification of a Ti-6Al-4V melt pool. Finite element simulations estimate the solidification temperature and velocity fields in the mel...
Chloride diffusivity in hardened cement paste from microscale analyses and accounting for binding effects [0.03%]
基于微尺度分析的硬化水泥石氯离子扩散系数研究及结合效应考量
P Carrara,L De Lorenzis,D P Bentz
P Carrara
The diffusion of chloride ions in hardened cement paste (HCP) under steady-state conditions and accounting for the highly heterogeneous nature of the material is investigated. The HCP microstructures are obtained through segmentation of X-r...