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ASTM Selected Technical Papers
Biomaterials' Mechanical Properties
By
HE Kambic, M.S.
HE Kambic, M.S.
1
The Cleveland Clinic Foundation
?
Cleveland, OH symposium co-chair and co-editor
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AT Yokobori, Jr, Ph.D. Jr
AT Yokobori, Jr, Ph.D. Jr
2
Tohoku University
,
Sendai,
Japan
symposium co-chair and co-editor
Search for other works by this author on:
ISBN-10:
0-8031-1894-5
ISBN:
978-0-8031-1894-2
No. of Pages:
308
Publisher:
ASTM International
Publication date:
1994

In this paper, some methods for evaluating the properties of metallic biomaterials are proposed and discussed, with special interest in the requirements of biomaterials which strongly relate to corrosive properties. A simple evaluation method for determining metallic elution was proposed, and the results are shown.

The most important mechanical property of a biomaterial is the fatigue life under consideration of actual usage and environment. The methods employed for the artificial joint were used as an example. The appropriate fatigue test for the biomaterial component is a four-point side notch bend specimen and the dimensions of the specimen are given. The notch tip radius of curvature should be the smallest radius of curvature of the implant design. The notch tip surface finishing condition should especially be examined, because not only notch radius (stress concentration) but also notch surface condition (scratch and structure sensitivity) affect the fatigue properties. The corrosion characteristics of biomaterials are also estimated by measuring the difference of the fatigue life in a laboratory air environment to that in a physiological saline solution environment. The details of the results on pure titanium, titanium alloy, and stainless steel are given.

1.
Corrosion and Degradation of Impact Materials
, ASTM STP 684,
Syrett
B. C.
and
Acharya
A.
, Eds.,
American Society for Testing and Materials
,
Philadelphia
,
1979
.
2.
Environment Assisted Fatigue
,”
EOF Publication 7
,
Scott
P.
and
Cottis
R. A.
, Eds.,
Mechanical Engineering Publications
,
1990
.
3.
Laboratory Corrosion Tests and Standards
, ASTM STP 866, Haynes and Baboian, Eds.,
American Society for Testing and Materials
,
Philadelphia
,
1983
.
4.
Mattsson
,
E.
,
Basic Corrosion Technology for Scientists and Engineers
,
Scott
P.
and
Cottis
R. A.
, Eds.,
Ellis Horwood
,
1989
, pp. 15–28.
5.
Kruger
,
J.
, “
Fundamental Aspects of the Corrosion of Metallic Implants
,” in
Corrosion and Degradation of Impact Materials
, ASTM STP 684,
Syrett
B. C.
and
Acharya
A.
, Eds.,
American Society for Testing and Materials
,
Philadelphia
,
1979
, pp. 107–127.
6.
Tipton
,
D. G.
, “
Micro-computer Data Acquisition for Corrosion Research
,” in
Laboratory Corrosion Tests and Standards
, ASTM STP 866, Haynes and Baboian, Eds.,
American Society for Testing and Materials
,
Philadelphia
,
1983
, pp. 24–35.
7.
Roppongi
,
T.
,
Tomita
,
Y.
,
Sugiyama
,
H.
, et al
, “
Effect of Joining the Different Kind of Metallic Component of Artificial Joint on Corrosion
,”
The Journal of the Japanese Orthopedic Association
, Vol.
64
,
1990
, p. S1279 (in Japanese).
8.
Shimojo
,
M.
,
Higo
,
Y.
, and
Nunomura
,
S.
, “
Relation Between the Amount of Fresh Bare Surface at the Crack Tip and the Fatigue Crack Propagation Rate
,”
ISIJ International
, Vol.
31
,
1991
, pp. 870–874.
9.
Takemoto
,
T.
,
Jing
,
K.
,
Sakalakos
,
T.
, et al
, “
The Importance of Surface Layer on Fatigue Behavior of T1-6A1-4V Alloy
,”
Metallurgical Transactions A
, Vol.
14
,
1983
, pp. 127–132.
10.
Peters
,
M.
,
Gysler
,
A.
, and
Lutjering
,
G.
, “
Influence of Texture on Fatigue Properties on Ti-6Al-4V
.”
Metallurgical Transactions
, Vol.
15
,
1984
, pp. 1597–1605.
11.
Ryder
,
J. T.
,
Krupp
,
W. E.
,
Pettit
,
D. E.
, and
Hoeppner
,
D. W.
, “
Corrosion-Fatigue Properties of Recrystallization Annealed Ti-6Al-4V
,”
in Corrosion-Fatigue Technology
, ASTM STP 642,
American Society for Testing and Materials
,
Philadelphia
,
1978
, pp. 202–222.
12.
Cook
,
S. D.
,
Georgette
,
F. S.
,
Skinner
,
H. B.
and
Haddad
,
R. J.
 Jr.
, “
Fatigue Properties of Carbon-and Porous-coated Ti-6\l-4V\l\oy
,”
Journal of Biomedical Materials Research
, Vol.
18
,
1984
, pp. 497–512.
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