The ??? transformation in maraging steel N18K9M5T

Autor:	S. S. Ryzhak, V. L. Nikol'skaya, L. N. Belyakov
Rok vydání:	1968
Předmět:	Austenite Materials science Annealing (metallurgy) Bainite Metallurgy Metals and Alloys chemistry.chemical_element engineering.material Atmospheric temperature range Condensed Matter Physics Nickel chemistry Mechanics of Materials Ferrite (iron) Martensite engineering Maraging steel
Zdroj:	Metal Science and Heat Treatment. 10:438-442
ISSN:	1573-8973 0026-0673
Popis:	1. The α→γ transformation in steel N18K9M5T occurs on holding at 500–730°C or on heating at rates below 30–50 deg/sec by way of martensite decomposition in the two-phase α+γ region with redistribution of alloying elements between ferrite and austenite. 2. The main reason for the stable austenite formed on holding in the α→γ temperature range is the redistribution of alloying elements (enrichment of austenite in nickel). 3. The rate at which martensite decomposes is very high, and therefore during heating to quenching temperature or during welding there is always formed some stable austenite enriched in nickel, which leads to residual austenite in the structure. The amount of residual austenite can be reduced by homogenizing annealing for 30–60 min at 820°C.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ee1c6fe8983397ff125ba5afeee84f2b https://doi.org/10.1007/bf00663712 Zobrazit plný text záznamu Full text from SpringerLink