Mechanical Properties and Fracture of Ultrafine-Grained Near β Titanium Alloy under Three-Point Bending

被引：0

作者：

Naydenkin, E. V. ^{[1
]}

Mishin, I. P. ^{[1
]}

Ratochka, I. V. ^{[1
]}

Straumal, B. B. ^{[2
,3
]}

Zabudchenko, O. V. ^{[1
]}

Lykova, O. N. ^{[1
]}

Manisheva, A. I. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Strength Phys & Mat Sci, Siberian Branch, Tomsk 634055, Russia

[2] Russian Acad Sci, Osipyan Inst Solid State Phys, Chernogolovka 142432, Russia

[3] Natl Univ Sci & Technol MISIS, Moscow 119049, Russia

来源：

PHYSICAL MESOMECHANICS | 2024年 / 27卷 / 06期

关键词：

near beta titanium alloy; ultrafine-grained structure; mechanical properties; three-point bending; fracture; MICROSTRUCTURE; DEFORMATION; BEHAVIOR; TI-6AL-4V; STRENGTH;

D O I：

10.1134/S1029959924060109

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Comparative studies are conducted on the structure and mechanical properties of the ultrafine-grained Ti-5Al-5V-5Mo-1Cr-1Fe alloy obtained by abc pressing and radial shear rolling with subsequent aging. It is shown that the ultrafine-grained structure formed by these methods provides increased strength properties under both tension and three-point bending compared to the initial coarse-grained state. At the same time, the alloy obtained by abc pressing demonstrates a higher fracture resistance during three-point bending compared to the alloy obtained by radial shear rolling + aging due to its enhanced ductility. This also determines the ductile fracture pattern of the ultrafine-grained alloy obtained by abc pressing during three-point bending in contrast to ductile-brittle fracture of the alloy obtained by radial shear rolling + aging.

引用

页码：736 / 746

页数：11

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