The fracture toughness of Fe-20%Co-15%Cr-5%Mo maraging alloy

✍ Scribed by C. Musiol; R. Brook

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 840 KB
• Volume: 9
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(77)90030-3

✦ Synopsis

The paper describes how the K,< fracture toughness of a high-purity Fe-2O%Co-lS%Cr-S%Mo maraging alloy is influenced by other mechanical properties and metallurgical factors. Particular consideration is given to the influence of residual oxygen content and to the strain-hardening characteristics of the material. The Krafft process-zone concept and the Hahm-Rosenfield relationship are validated.

Although the heat-treatment parameters have not been optimised, the results show this stainless alloy to be capable of developing a high tensile strength, combined with good fracture toughness and the manner in which certain features of the microstructure influence these properties has been discussed.