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Fracture Toughness of Ductile Iron and Cast Steel / WL. Bradley, KE. McKinney, PC. Gerhardt

Conference Author
Fracture Mechanics: Seventeenth Volume (17th : 1984 : Albany, New York)
Physical Description
1 online resource (20 pages) : illustrations, figures, tables
Additional Creators
Bradley, WL., McKinney, KE., Gerhardt, PC., American Society for Testing and Materials, and ASTM International
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Summary
The dynamic fracture behavior of ductile cast iron and cast steel has been studied to better explain why blunt notched Charpy bars indicate ductile iron has a quite inferior fracture toughness compared with cast steel with similar tensile properties (15 versus 75 J) while fracture mechanics tests indicate a much less significant difference in fracture toughness between the two materials. Using standard and fatigue precracked side-grooved Charpy specimens, it has been shown that the different predictions are due to a difference in constraint, the standard Charpy bar experiencing loss of constraint for the cast steel but remaining fully constrained for the ductile iron. For fatigue precracked and side-grooved Charpy specimens, initial crack extension occurred in both materials under conditions of full constraint, and the cast steel upper shelf fracture toughness was found to be only modestly better than the upper shelf fracture toughness of the ductile iron. Because of its lower ductile-to-brittle transition temperature, ductile iron has been found to have a superior fracture toughness to cast steel with similar tensile properties at temperatures below ambient.
Dates of Publication and/or Sequential Designation
Volume 1986, Issue 905 (January 1986)
Subject(s)
Other Subject(s)
ISBN
9780803149724 (e-ISBN)
9780803104723
0803104723
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 10.
Other Forms
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1986. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
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