Grain-structure development in heavily cold-rolled alpha-titanium

被引：36

作者：

Dyakonov, G. S. ^{[1
]}

Mironov, S. ^{[2
]}

Zherebtsov, S. V. ^{[3
]}

Malysheva, S. P. ^{[4
]}

Salishchev, G. A. ^{[3
]}

Salem, A. A. ^{[5
,6
]}

Semiatin, S. L. ^{[6
]}

机构：

[1] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa 450000, Russia

[2] Tohoku Univ, Grad Sch Engn, Dept Mat Proc, Aoba Ku, Sendai, Miyagi 9808579, Japan

[3] Belgorod State Univ, Lab Bulk Nanostruct Mat, Belgorod 308015, Russia

[4] Russian Acad Sci, Inst Met Superplast Problems, Ufa 450001, Russia

[5] Mat Resources LLC, Dayton, OH 45402 USA

[6] AFRL, Mat & Mfg Directorate, RXCM, Wright Patterson AFB, OH 45433 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 607卷

关键词：

EBSD; Nanostructured materials; Titanium alloys; Bulk deformation; Grain refinement; COMMERCIAL-PURITY TITANIUM; TEXTURE EVOLUTION; DEFORMATION; MICROSTRUCTURE; ALLOYS; MECHANISMS; TI;

D O I：

10.1016/j.msea.2014.03.141

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High-resolution electron back-scatter diffraction (EBSD) analysis was employed to establish mirco-structure evolution in heavily cold-rolled alpha-titanium. After thickness reductions of 75% to 96%, significant microstructure and texture changes were documented. The surface area of high-angle grain boundaries was almost tripled, thus giving rise to an ultra-fine microstructure with a mean grain size of 0.6 mu m. Moreover, orientation spread around typical 'split-basal' rolling texture substantially increased. These effects were suggested to be related to the enhancement of pyramidal (c+a) slip. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：145 / 154

页数：10

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