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ASTM Selected Technical Papers
Industrial Applications of Titanium and Zirconium: Fourth Volume
By
CS Young
CS Young
1
Astro Metallurgical
,
Wooster, OH, 44691
;
symposium chairman and coeditor
.
Search for other works by this author on:
JC Durham
JC Durham
2
Timet
,
Irvine, CA 92713
;
symposium cochairman and coeditor
.
Search for other works by this author on:
ISBN-10:
0-8031-0484-7
ISBN:
978-0-8031-0484-6
No. of Pages:
229
Publisher:
ASTM International
Publication date:
1986

Copper-nickel alloys and steel are the materials most commonly used for piping applications in a seawater environment. For situations where reduced weight, increased flexibility, and excellent corrosion-erosion resistance are desired, titanium is an extremely attractive alternate material.

Commercially pure grades of titanium can be used for seawater piping, but are rather low in strength. However, by taking advantage of the high specific strength possible with alloys of titanium, substantial weight savings can be achieved.

Based upon screening studies, Ti-3Al-2.5V was selected for investigation as a candidate alloy for this application. Plate 25.4-mm (1-in.) thick, extruded from Ti-3Al-2.5V billet at a 10:1 reduction ratio, was used for heat treatment and property studies. In addition, double-vee butt weldments of this plate were prepared by the automatic cold-wire gas tungsten arc welding process. The results of mechanical property tests will be presented for both Ti-3Al-2.5V plate and weldments.

Results to date indicate that the Ti-3Al-2.5V alloy possesses a highly desirable suite of properties that make it a very attractive candidate for piping and machinery applications in the seawater environment.

1.
Russo
,
P. A.
and
Seagle
,
S. R.
,
Industrial Applications of Titanium and Zirconium: 3rd Conference
, stp 830,
American Society for Testing and Materials
,
Philadelphia
,
1984
, pp. 99-112.
2.
Koon
,
J. F.
, “
Ti-(2.5-3.5) Al-(0-14) V Phase Diagram
,”
KBI Inc. Product Data Sheet 326-4-PD2
,
Albany, KY
.
3.
Joyce
,
J. A.
and
Gudas
,
J.P.
,
Elastic-Plastic Fracture
, stp 668,
American Society for Testing and Materials
,
Philadelphia
,
1979
, pp. 451-468.
4.
Ernst
,
H.
,
Paris
,
P. C.
, and
Landes
,
J. D.
,
Fracture Mechanics: Proceedings of the Thirteenth National Symposium
, stp 743,
American Society for Testing and Materials
,
Philadelphia
,
1981
, pp. 476-502.
5.
Saxena
,
A.
and
Hudak
,
S. J.
, “
Review and Extension of Compliance Information for Common Crack Growth Specimens
,”
International Journal of Fracture
, Vol.
14
, No.
5
,
10
1978
, pp. 453-468.
6.
Paris
,
P. C.
,
Tada
,
H.
,
Zahoor
,
A.
, and
Ernst
,
H.
,
Elastic-Plastic Fracture
, stp 668,
American Society for Testing and Materials
,
Philadelphia
,
1979
, pp. 251-265.
7.
Forrest
,
P. G.
,
Fatigue of metals
,
Pergamon Press
,
New York
,
1962
, p. 83.
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