Independently Controlled Carbon and Nitrogen Potential: A New Approach to Carbonitriding Process

Autor:	Karl-Michael Winter
Rok vydání:	2013
Předmět:	Austenite Work (thermodynamics) Materials science Carbonitriding Mechanical Engineering Metallurgy chemistry.chemical_element Nitrogen Fatigue limit chemistry Mechanics of Materials Scientific method General Materials Science Carbon Heat treating
Zdroj:	Journal of Materials Engineering and Performance. 22:1945-1956
ISSN:	1544-1024 1059-9495
DOI:	10.1007/s11665-013-0556-5
Popis:	Recent research projects show that retained austenite, if stabilized by nitrogen, has a positive influence on the fatigue strength of work pieces. The combined diffusion profile of carbon and nitrogen applied in a carbonitriding process plays a major role, besides the process temperature. Yet today, only the carbon potential is somehow controlled and even this is not easy to achieve. This paper will present a new system able to measure and control both the carbon potential and the nitrogen potential independently. The knowledge of the activities of nitrogen and carbon in iron and the effect of alloying elements on such activities as well as the solubilities offers a way to apply the potentials on real steels.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1fbd5363f638a0e691e79b39f29ab09b https://doi.org/10.1007/s11665-013-0556-5 Zobrazit plný text záznamu Full text from SpringerLink