Mechanical Property Characterization of VascoMax T-300
Abstract
This report addresses a mechanical property characterization of 18% Nickel 300 grade cobalt-free maraging steel (T-300). Hardness, tensile, Charpy V-notch impact energy, and fracture toughness data were obtained for a 2-3/8- inch-diameter forged bar. These data are presented along with existing data on stress corrosion, microstructure, and ballistic performance for this and other maraging steels. The results indicated that the mechanical properties are more dependent on the aging temperature than on the aging time for the temperatures of 900 F and 950 F, and times of 3 and 4 hours. Both hardness and Charpy impact energy were unaffected by varying the aging temperatures and times, while the tensile properties and fracture toughness increased in response to the increase in aging temperature. Based on the information obtained in this study and the existing information available on this alloy, the recommended aging treatment is 950 F for 4 hours.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1989
- Accession Number
- ADA212950
Entities
People
- Charles F. Hickey Jr.
- David Kagan
- David W. Dix