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Título del libro: 30th Asm Heat Treating Society Conference And Exposition, Heat Treat 2019 - Extended Abstracts
Título del capítulo: Pearlite spheroidization and its relationship with tensile strength in hypoeutectoid steels

Autores UNAM:
HECTOR JAVIER VERGARA HERNANDEZ; OCTAVIO VAZQUEZ GOMEZ;
Autores externos:

Idioma:

Año de publicación:
2019
Palabras clave:

Cooling; Heat treatment; Microstructure; Pearlite; Fracture appearance; Furnace cooling; Hypoeutectoid steel; Microstructural evaluation; Pearlite interlamellar spacing; Scanning electrons; Spheroidization; Tensile elongation; Tensile strength


Resumen:

One steel containing 0.6 wt pct C, 0, 78 wt pct Mn, and 0.32 wt pct Cr was austenitized at 840 °C for 1 hour and cooled at two rates. Microstructural evaluation by light optical and scanning electron metallography showed a change in the pearlite microstructure. Cooling in air as compared to furnace cooling reduced the pearlite interlamellar spacing and increased the hardness. The slower cooling resulted in a lower tensile strength, higher tensile elongation, and a different fracture appearance. Copyright © 2019 ASM International® All rights reserved.


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