Mechanical Properties and High Temperature Deformation of Beta Titanium Alloys

2007 ◽  
Vol 546-549 ◽  
pp. 1379-1382
Author(s):  
Qing Zhou ◽  
Goroh Itoh ◽  
Mitsuo Niinomi
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
High Temperature ◽  
Band Structure ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Beta Titanium Alloy ◽  
Biomedical Implant ◽  
Beta Titanium ◽  
Deformation Behaviors

Because of its excellent environmental resistance and cold-working capacity, beta titanium alloy Ti-15-3 has attracted more and more attention in aerospace manufacture industry. Another beta titanium alloy, Ti-29-13, has been recently developed for biomedical implant materials. The mechanical properties of three alloys including two β and one α+β are presented, particularly the characteristic of β alloy differing from that of α+β alloy. The high temperature deformation behaviors of two alloys are also presented. Excellent formability of Ti-15-3 highlights the metal sheet application in commercial and military airplane. Band structure in Ti-29-13 has been found. Thermalmechanical processing is carried out to reduce the band structure and improve the elongation.

High Temperature Deformation Behavior of a Beta Titanium Alloy for Biomedical Application

2005 ◽  
Vol 475-479 ◽  
pp. 2299-2302 ◽  
Author(s):  
Qing Zhou ◽  
Goroh Itoh ◽  
Hisashi Hasegawa ◽  
Yoshinobu Motohashi ◽  
Mitsuo Niinomi
Keyword(s):  
Titanium Alloy ◽  
Tensile Test ◽  
Biomedical Application ◽  
Rate Sensitivity ◽  
Optical Microscope ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Before And After

The deformation characteristics of a beta-type Ti-29%Nb-13%Ta-5%Zr alloy, developed for biomedical application, and their relation with the microstructure are investigated. The cold-rolled specimen is subjected to a tensile test at high temperatures ranging from 700 to 800°C under a constant cross-head speed ranging from 1×10-4 to 1×10-2s-1. The elongations tested at different temperatures are compared with that of Ti-15%V-3%Cr-3%Sn-3%Al, a typical beta titanium alloy. The deformation mechanism is characterized from the parameter of the strain rate sensitivity. The microstructures before and after the tensile test are observed with optical microscope and the correspondent grain sizes are measured. The grain growth during the deformation is also described.

UNS R54620

Alloy Digest ◽  
1987 ◽  
Vol 36 (7) ◽  
Keyword(s):  
Titanium Alloy ◽  
High Temperature ◽  
Time Use ◽  
Temperature Stability ◽  
High Strength ◽  
Heat Treating ◽  
High Temperature Stability ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Long Time

Abstract UNS No. R54620 is an alpha-beta titanium alloy. It has an excellent combination of tensile strength, creep strength, toughness and high-temperature stability that makes it suitable for service to 1050 F. It is recommended for use where high strength is required. It has outstanding advantages for long-time use at temperatures to 800 F. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and bend strength as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ti-86. Producer or source: Titanium alloy mills.

scholarly journals High-Temperature Flow Behaviour and Constitutive Equations for a TC17 Titanium Alloy

2019 ◽  
Vol 38 (2019) ◽  
pp. 168-177 ◽  
Author(s):  
Liu Shi-feng ◽  
Shi Jia-min ◽  
Yang Xiao-kang ◽  
Cai Jun ◽  
Wang Qing-juan
Keyword(s):  
Titanium Alloy ◽  
High Temperature ◽  
Constitutive Equation ◽  
Constitutive Equations ◽  
Deformation Behaviour ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Compression Tests ◽  
Average Absolute Relative Error ◽  
Wide Range

AbstractIn this study, the high-temperature deformation behaviour of a TC17 titanium alloy was investigated by isothermal hot compression tests in a wide range of temperatures (973–1223 K) and strain rates (0.001–10 s−1). Then, the constitutive equations of different phase regimes (α + β and single β phases) were developed on the basis of experimental stress-strain data. The influence of the strain has been incorporated in the constitutive equation by considering its effect on different material constants for the TC17 titanium alloy. Furthermore, the predictability of the developed constitutive equation was verified by the correlation coefficient and average absolute relative error. The results indicated that the obtained constitutive equations could predict the high-temperature flow stress of a TC17 titanium alloy with good correlation and generalization.

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