Effect of Microstructure on the Compressive Mechanical Properties of Ti-20Zr-6.5Al-4V Alloy

被引：0

作者：

Tan, Yuanbiao ^{[1
]}

Duan, Jingli ^{[2
]}

Liu, Wenchang ^{[2
]}

Xiang, Song ^{[1
]}

Zhao, Fei ^{[1
]}

Liang, Yilong ^{[1
]}

机构：

[1] Guizhou Univ, Coll Mat & Met, Guizhou Key Lab Mat Mech Behav & Microstruct, Guiyang 550025, Guizhou, Peoples R China

[2] Yanshan Univ, Coll Mat Sci & Engn, Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

来源：

MATERIALS SCIENCE-MEDZIAGOTYRA | 2019年 / 25卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Ti alloy; deformation; mechanical properties; microstructure; phase transformation; INDUCED MARTENSITIC-TRANSFORMATION; TITANIUM-ALLOY; SUPERELASTIC BEHAVIOR; PHASE-TRANSFORMATION; ALPHA''-MARTENSITE; TENSILE PROPERTIES; STRAIN-RATE; GRAIN-SIZE; ZR; TEMPERATURE;

D O I：

10.5755/j01.ms.25.1.18737

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of microstructure on the mechanical properties of Ti-20Zr-6.5Al-4V alloy after solution and aging treatment was investigated by compression tests. The results showed that the microstructure was consisted of a duplex phase alpha '' + beta structure after solution treatment. With increasing solution treatment temperature, the size of beta phase grain increased and the amount of alpha '' phase decreased. The ultimate compressive strength and elongation decreased with increasing solution treatment temperature, while the yield strength increased. After aging-treatment at 700 degrees C for 1.5 h, the microstructure consisted of a large amount of globular alpha phase, a little amount of fine acicular alpha phase and bulk beta phase for the samples solution-treated at 850 degrees C for 0.5 h. With increasing initial solution treatment temperature, the amount of globular alpha phase and bulk beta phase decreased, however, the amount and size of acicular alpha phase increased after aging treatment. The ultimate compressive strength and elongation decreased with increasing initial solution treatment temperature, whereas the yield strength firstly increased, and then slightly decreased.

引用

页码：28 / 35

页数：8

共 37 条

[1]

Aeby-Gautier E, 2012, J ALLOY COMPD, V577, P439, DOI [10.1016/j.jallcom.2012.02.046, DOI 10.1016/J.JALLCOM.2012.02.046]

[2]

Beal J. D, 2006, ASM HDB B, V14B

[3] Effect of βgrain size on stress induced martensitic transformation in βsolution treated Ti-10V-2Fe-W alloy [J].