Influence of Globularization Process on Local Texture Evolution of a Near-α Titanium Alloy with a Transformed Microstructure

被引：13
作者：
Zhao, Z. B. [1 ]
Zhang, B. H. [1 ,2 ]
Sun, H. [1 ]
Wang, Q. J. [1 ]
Liu, J. R. [1 ]
Yang, R. [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2023年 / 54卷 / 07期
关键词：
COMMERCIALLY PURE TITANIUM; BETA-PHASE; VARIANT SELECTION; DEFORMATION; TI-6AL-4V; FATIGUE; HETEROGENEITIES; BEHAVIOR; RECRYSTALLIZATION; MICROTEXTURE;
D O I：
10.1007/s11661-023-07063-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure and texture evolution of Ti60 (Ti-5.6Al-3.7Sn-3.2Zr-0.5Mo-0.4Nb-1.0Ta-0.37Si-0.05C) titanium alloy at two deformation temperatures in the alpha + beta two-phase field, 900 degrees C and 980 degrees C, have been investigated in this work. The purpose is to elucidate local texture evolution during alpha + beta hot working process and the mechanisms by which the macrozones formed for bimodal microstructure. To this end, a lamellar Ti60 ingot was compressed and annealed in the alpha + beta phase field. The key finding was that the globularization mechanism of alpha lamellae and crystallographic orientation evolution of both a and b phases strongly depended on deformation temperature. The experimental findings and analyses suggest that hot working in the low alpha + beta two-phase field is beneficial to reducing texture intensity and eliminating the macrozones of near-alpha titanium alloys.
引用
收藏
页码：2849 / 2857
页数：9
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