Development of a Cast Iron Fatigue Properties Database for use with Modern Design Methods
A reliable and comprehensive database of design properties for cast iron is key to full and efficient utilization of this versatile family of high production-volume engineering materials. A database of strain-life fatigue properties and supporting data for a wide range of structural cast irons representing industry standard quality was developed in this program. The database primarily covers ASTM/SAE standard structural grades of ADI, CGI, ductile iron and gray iron as well as an austempered gray iron. Twenty-two carefully chosen materials provided by commercial foundries were tested and fifteen additional datasets were contributed by private industry. The test materials are principally distinguished on the basis of grade designation; most grades were tested in a 25 mm section size and in a single material condition common for the particular grade. Selected grades were tested in multiple sections-sizes and/or material conditions to delineate the properties associated with a range of materials for the given grade. The cyclic properties are presented in terms of the conventional strain-life formalism (e.g., SAE J1099). Additionally, cyclic properties for gray iron and CGI are presented in terms of the Downing Model, which was specifically developed to treat the unique stress-strain response associated with gray iron (and to a lesser extent with CGI). The test materials were fully characterized in terms of alloy composition, microstructure and monotonic properties. The CDROM database presents the data in various levels of detail including property summaries for each material, detailed data analyses for each specimen and raw monotonic and cyclic stress-strain data. The CDROM database has been published by the American Foundry Society (AFS) as an AFS Research Publication entitled ''Development of a Cast Iron Fatigue Properties Database for Use in Modern Design Methods'' (ISDN 0-87433-267-2).
- Research Organization:
- Climax Research Services, 51229 Century Court, Wixom, MI 48393 (US)
- Sponsoring Organization:
- USDOE Office of Industrial Technologies (OIT) (EE-20) (US)
- DOE Contract Number:
- FC07-00ID13852
- OSTI ID:
- 815140
- Report Number(s):
- DOE/ID13852; TRN: US200320%%149
- Resource Relation:
- Other Information: PBD: 18 Sep 2003
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
ALLOYS
CAST IRON
DESIGN
FOUNDRIES
IRON
MICROSTRUCTURE
STRAIN-LIFE FATIGUE PROPERTIES
AXIAL FATIGUE
DESIGN PROPERTIES
GRAY IRON
DUCTILE IRON
NODULUAR IRON
AUSTEMPERED DUCTILE IRON
COMPACTED GRAPHITE IRON
ADI
CGI
DOWNING METHOD
MICROSTRUCTURE OF CAST IRON
TENSILE PROPERTIES
COMPRESSION PROPERTIES
ELASTIC MODULUS
POISSON'S RATIO
STRAIN HARDENING EXPONENT
STRENGTH COEFFICIENT
FATIGUE STRENGTH COEFFICIENT