کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1575054 1514737 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of adiabatic shear bands intersection on the ballistic impact of Ti-6Al-4V alloys with three microstructures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Influence of adiabatic shear bands intersection on the ballistic impact of Ti-6Al-4V alloys with three microstructures
چکیده انگلیسی
Multiple ASBs and their interactions were observed in the Ti-6Al-4V plates with equiaxed, bimodal, and lamellar microstructures impacted by armor-piercing projectiles. The ASBs mainly expanded along two directions, which were top-to-down and left-to-right. All the ASBs comprised dynamically recrystallized equiaxed grains and some partial dynamically recrystallized strip subgrains. The arrangement directions of these subgrains were different between the top-to-bottom and left-to-right ASBs. The expansion range of the left-to-right ASBs was the largest in the bimodal microstructure and the smallest in the equiaxed microstructure. The existing subgrains in the previously formed ASBs were elongated and fragmented during the intersection process, and decreased with the expansion of later-formed ASBs. Some of the subgrains were sheared again, which probably inhibited the expansion of the later-formed ASBs. The least amount of fragments and the smallest craters were observed in the Ti-6Al-4V plates with the equiaxed microstructure because of the lowest amount of ASB intersections and cracks, as well as the smallest expansion range of sideward ASBs. More and larger fragments and the largest craters were observed in the bimodal and lamellar microstructures because of more intersections, cracks and the largest expansion range of sideward ASBs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 606, 12 June 2014, Pages 257-267
نویسندگان
, , , , , ,