Studies of the effect of thickness on the fracture toughness of grade 300 maraging steel, part 1.
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Date
1977-06
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Atomic Energy Commission
Abstract
A series of tests was carried out using the ASTM fracture toughness test standards as a basis to determine the variation in fracture toughness of maraging steel (grade 300) of thickness ranging from 10 to 1 mm. Although these standards are not strictly applicable to maraging steels of the lower thicknesses in this range, they yield a measure of fracture toughness which can be used to predict safe operating stresses for thin walled the structures. A maximum fracture toughness of approximately 90 MPa m was obtained at 1 mm, the minimum thickness examined. The plane strain fracture toughness was approximately 58 MPa m at thicknesses greater
than 5 mm.
Description
Keywords
Fracture properties, Thickness, Sheets, Maraging steels
Citation
Smith, P. D., & Brown, K. R. (1977). Studies of the effect of thickness on the fracture toughness of grade 300 maraging steel, part 1 (AAEC/E405). Lucas Heights, N.S.W.: Australian Atomic Energy Commission Research Establishment.