Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

The effect of hot isostatic pressing on crack initiation, fatigue, and mechanical properties of two cast aluminum alloys

Journal Article · · Journal of Materials Engineering and Performance
;  [1];  [2];  [3];  [4]
  1. Buckness Univ., Lewisburg, PA (United States)
  2. Certainteed Corp., Valley Forge, PA (United States)
  3. Polysurveying, Daphne, AL (United States)
  4. SECOR International Inc., Robbinsville, NJ (United States)
+ Show Author Affiliations
This article presents the results of an experimental materials testing program on the effect of hot isostatic pressing (HIP) on the crack initiation, fatigue, and mechanical properties of two cast aluminum alloys: AMS 4220 and 4225. These alloys are often used in castings for high temperature applications. Standard tensile and instrumented Charpy impact tests were performed at room and elevated temperatures. The resulting data quantify improvements in ultimate tensile strength, ductility, and Charpy impact toughness from the HIP process while indicating little change in yield strength for both alloys. In addition standard fracture mechanics fatigue tests along with a set of unique fatigue crack initiation tests were performed on the alloys. Hot isostatic pressing was shown to produce a significant increase in cycles to crack initiation for AMS 4225, while no change was evident in traditional da/dN fatigue crack growth. The data permits comparisons of the two alloys both with and without the HIP process.
OSTI ID:
364019
Journal Information:
Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 3 Vol. 8; ISSN 1059-9495; ISSN JMEPEG
Country of Publication:
United States
Language:
English

Similar Records

Low-cycle fatigue behavior of polycrystalline NiAl at 1000 K
Journal Article · Mon Jan 31 23:00:00 EST 1994 · Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States) · OSTI ID:5263712
Fatigue properties of hot isostatically pressed Ti-6Al-4V powders
Conference · Fri Dec 31 23:00:00 EST 1982 · Prog. Powder Metall.; (United States) · OSTI ID:5496775
Evaluation of the strength and creep-fatigue behavior of hot isostatically pressed silicon nitride
Journal Article · Tue Sep 01 00:00:00 EDT 1992 · Journal of the American Ceramic Society; (United States) · OSTI ID:6987023

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM BASE ALLOYS
CHARPY TEST
CRACK PROPAGATION
CRACKS
FATIGUE
HOT PRESSING
IMPACT STRENGTH
METALLURGICAL EFFECTS
TENSILE PROPERTIES