Biomedical Engineering Reference
In-Depth Information
A
30
Titanium 130
Titanium 115
20
10
4
10
4
10
5
10
6
10
7
Cycles to failure
B
26
25
24
Ti 160
+
+
14
+
+
13
+
+
+
++
Ti 120
+
12
11
H.P. Ti.
10
9
10
4
10
5
10
6
10
7
10
8
Cycles to failure
C
1.8
300
°
K
Push- Pull (zero mean stress)
1.6
100 -160 cps
Turner and Roberts
9-112
G.S.
μ
1.4
Lipsitt and Wang 53-76
G.S.
μ
G.S.
Beevers and Robinson 200-300
μ
G.S.
Golland and Beevers 150
μ
G.S.
Turner and Roberts 26 -32
μ
G.S.
(Values in paranthesis indicate grain
size in microns)
Robinson
et al.
250
μ
1.2
1.0
(112)
0.8
(32)
(53)
(9)
(250)
(32)
(32)
(53)
(76)
0.6
(32)
(9)
(53)
(32)
(250)
(150)
(200)
(200)
0.4
(300)
0.2
0
0.4
0.8
1.2
1.6
At. % Oeq
Fig. 3.2.9-11 (A) S-N curves (stress amplitude-number of cycles to failure) at room temperature for CP Ti with varying oxygen content
(see text for O content of Ti 160, 130, and 115), from
Beevers and Robinson (1969)
. (B) S-N curves at room temperature for CP Ti
with varying oxygen content (see text), from
Turner and Roberts (1968a)
. (C) Ratio of fatigue limit to yield stress in unalloyed Ti at 300 K as
a function of at.% oxygen and grain size, from
Conrad et al. (1973)
.
