第一性原理研究反位缺陷对<strong>TiAl</strong>基合金力学行为的影响

第一性原理研究反位缺陷对TiAl基合金力学行为的影响

吉宗威^1,^2,³,卢松³,于慧^1,⁴,胡青苗¹(

),Vitos Levente³,杨锐¹

First-Principles Study on the Impact of Antisite Defects on the Mechanical Properties of TiAl-Based Alloys

Zongwei JI^1,^2,³,Song LU³,Hui YU^1,⁴,Qingmiao HU¹(

),Levente Vitos³,Rui YANG¹

图9. 以CSF为前缘分位错的变形模式OD和SD_II的 $γ ˉ$ 随θ的变化

Fig.9. $γ ˉ$ for the CSF partial dislocation leading deformation models OD and SD_II as functions of θ (The critical angles for the transitions from OD to SD_II and from SISF to CSF are represented respectively by the vertical dashed and solid lines)