Grain-refining heat treatments increase toughness without substantial strength loss. Five alloys selected for study, all at or near technological limit. Results showed clearly grain sizes of these alloys refined by such heat treatments and grain refinement results in large improvement in toughness without substantial loss in strength. Best improvements seen in HP-9-4-20 Steel, at low-strength end of technological limit, and in Maraging 200, at high-strength end. These alloys, in grain refined condition, considered for model applications in high-Reynolds-number cryogenic wind tunnels.
Increasing the Cryogenic Toughness of Steels
NASA Tech Briefs ; 10 , 2
1986-05-01
Sonstige
Keine Angabe
Englisch
Increasing Cryogenic Fracture Toughness of Alloy 2195
Online Contents | 1997
SAE Technical Papers | 2016
|Increasing Metal Fracture Toughness
NTRS | 1982
|Fracture toughness of ship steels
Tema Archiv | 1989
|