Biomedical Engineering Reference
In-Depth Information
Ta b l e 3
.
19
(
Contd
)
R
m
[MPa]
R
e
[MPa]
A
[%]
Z
[%]
E
[GPa]
Structure
type
Composition
Ti-5Al-1.5B 925
−
1080 820
−
930 15
−
17 36
−
45 110
Ti-15Sn-4Nb-
2Ta-0.2Pd
(a)
860
790
21
64
89
(b)
1109
1020
10
39
103
α
+
β
Ti-15Zr-4Nb-
4Ta-0.2Pd
(a)
715
693
28
67
94
(b)
919
806
18
72
99
973
−
1037 836
−
908 10
−
16 27
−
53 79
−
84
β
Ti-13Nb-13Zr
(b)
β
1060
−
1100 900
−
1060 18
−
22 64
−
73 74
−
85
Ti-12Mo-6Zr-
2Fe (a)
β
Ti-15Mo (a) 874
544
21
82
78
Ti-15Mo-5Zr-
3Al (b)
1060
−
1100 1000
−
1060 18
−
22 64
−
73 —
979
−
999 945
−
987 16
−
18 60
β
Ti-15Mo-
2,8Nb-0.2Si (a)
83
β
Ti-35,3Nb-
5,1Ta-7.1Zr
597
547
19
68
55
β
Ti-29Nb-
13Ta-4.6Zr (b)
911
864
13
—
80
(a) Heat treatment.
(b)
Aging treatment.
Ta b l e 3
.
21
Mechanical properties of some Ti-based dental alloys
Synthesis
method
R
m
[MPa]
R
e
[MPa]
A
[%]
Composition
HV
Ti-20Cr-0.2Si Casting
874
669
6
318
Ti-25Pd-5Cr Casting
880
659
5
261
Ti-13Cu-4.5Ni Casting
703
—
2,1
—
Ti-6Al-4V
Casting
976
847
5,1
—
Ti-6Al-4V
Forming
954
729
10
346
Ti-6Al-7Nb Casting
933
817
7,1
—
Ti-Ni
Casting
470
—
8
190
In all conventional titanium alloys,
α
to
β
transus temperature
(known as
β
transus) plays a central role in evolution of micro-
structure and is of great technological importance in determining
heat treatment and processing schedule. The various micro-
