高强韧钛合金组成相成分和形态的精细调控 |
杨锐, 马英杰, 雷家峰, 胡青苗, 黄森森 |
Toughening High Strength Titanium Alloys Through Fine Tuning Phase Composition and Refining Microstructure |
YANG Rui, MA Yingjie, LEI Jiafeng, HU Qingmiao, HUANG Sensen |
图1 第一性原理计算得到的α-Ti-xAl二元合金柱面及基面<a>位错滑移临界剪切应力随Al含量的变化,以及实验测得的Ti-xAl合金屈服强度及断裂韧性随Al含量的变化[ |
Fig.1 Peierls stress (single dislocation critical resolved shear stress, CRSS) τ of Ti-xAl alloys plotted as functions of composition for the relaxed VASP-SQS calculations (a) and mechanical properties of Ti-xAl alloy as functions of Al concentration from experimental measurements (b) (VASP—vienna ab initio simulation package, SQS—special quasirandom structure, |
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