The role of the divorced eutectoid transformation in the spheroidization of 52100 steel

Autor:	John D. Verhoeven
Rok vydání:	2000
Předmět:	Austenite Materials science Mechanics of Materials Annealing (metallurgy) Metallurgy Metals and Alloys Metallography Cooling rates Pearlite Condensed Matter Physics Microstructure Carbide Eutectic system
Zdroj:	Metallurgical and Materials Transactions A. 31:2431-2438
ISSN:	1543-1940 1073-5623
Popis:	Austenite containing fine particles of carbides may undergo the eutectoid transformation by either the pearlite reaction or the divorced eutectoid transformation (DET) reaction. The latter reaction automatically produces a spheroidized structure, while the pearlite reaction produces a structure that resists spheroidization. This study has evaluated the heat treatment conditions that promote the DET in 52100 steel. The results show that the DET is dominant over the pearlite reaction for austenitization at temperatures of 830 °C and below and for cooling rates of 500 °C/h and below. This information should be useful in the design of more energy efficient heat treatment processes for spheroidization annealing than the very long time processes currently recommended in the literature.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::49b1f80af80fd6002387a8162c92c6b2 https://doi.org/10.1007/s11661-000-0188-x Zobrazit plný text záznamu Full text from SpringerLink