Creep behavior of a new cast austenitic alloy

Autor:	Neal D. Evans, Philip J. Maziasz, Michael J. Pollard, John P. Shingledecker
Rok vydání:	2007
Předmět:	Austenite Materials science Creep Mechanics of Materials Precipitation (chemistry) Mechanical Engineering Metallurgy Alloy engineering Intermetallic General Materials Science engineering.material Carbide
Zdroj:	International Journal of Pressure Vessels and Piping. 84:21-28
ISSN:	0308-0161
DOI:	10.1016/j.ijpvp.2006.09.014
Popis:	A new cast austenitic alloy, CF8C-Plus, has been developed by Oak Ridge National Laboratory (ORNL) and Caterpillar for a wide range of high temperature applications including diesel exhaust components and turbine casings. The creep strength of the CF8C-Plus steel is much greater than that of the standard cast CF8C stainless steel and is comparable to the highest strength wrought commercial austenitic stainless steels and alloys, such as NF709. The creep properties of CF8C-Plus are discussed in terms of the alloy design methodology and the evaluation of some long-term creep tested specimens (over 20,000 h). Microcharacterization shows that the excellent creep strength is due mainly to the precipitation of very fine nano-scale and stable MC carbides, without the formation of deleterious intermetallic phases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::519625d755c9cb3aed8d26f604376aaf https://doi.org/10.1016/j.ijpvp.2006.09.014 Zobrazit plný text záznamu Full Text from ScienceDirect