期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Three-dimensional computational characterization of grain size and texture effects in magnesium alloys
1
作者 Shahmeer Baweja shailendra p.joshi 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2023年第10期3657-3672,共16页
This work systematically investigates the microstructure-property relationship in Mg alloys. Emphasis is placed on understanding, through high resolution crystal plasticity modeling, how grain size and texture collect... This work systematically investigates the microstructure-property relationship in Mg alloys. Emphasis is placed on understanding, through high resolution crystal plasticity modeling, how grain size and texture collectively impact material strengthening and hardening, net plastic anisotropy, and tension-compression asymmetry. To achieve this, 528 fully three-dimensional finite element calculations are performed, which comprise eleven textures, four grain sizes, six loading orientations, and two uniaxial loading states(tension and compression). The grain size effect follows Hall-Petch relation that depends on both, loading orientation and initial texture. The reduction in extension twinning with grain size refinement is influenced by texture as well. Below a threshold textural strength, grain size refinement leads to an appreciable reduction in the net plastic anisotropy at yield, quantified using Hill anisotropy, and reduced tension-compression asymmetry. Using a micromechanical basis, the effect of grain size and texture on material ductility is predicted to be non-monotonic. The computational predictions serve as synthetic data sets for experimental validation and reduced-order modeling. 展开更多
关键词 Mg alloys Microstructure-property relations Grain-size effect Crystal plasticity Damage micromechanics
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部