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13 具有魏氏组织的Ti64合金裂纹尖端塑性区内的大范围形变孪晶及其EBSD表征分析^[51]
(a) four primary twinning variants in single α colony
(b) band contrast map with the red line representing {

10 \overset{ˉ}{1} 2

} twining plane
(c) 3D crystal viewer of the corresponding parent and deformation twinning
(d) pole figures of {

10 \overset{ˉ}{1} 2

} twinning plane of parent grain and the four twinning variants
(e) schematic representation of the crystallo-graphic relationship between the parent grain and twin variants

Fig.13 Characterization of deformation twinning in crack tip plastic zone (CTPZ) of Ti64 alloy with Widmannst?tten microstructure^[51]