Residual stress during heat treatment of steel grinding balls

Camurri, C; Carrasco C.; Dille J.

Abstract

This work aimed to model the temperature distribution, phase transformation and residual stress induced during the heat treatment of grinding balls of 3 and 5 in. diameter. The temperature model considered factors such as the heating of the water and the formation of a steam layer that surrounds the balls at the start of the quenching. The model of the residual stress field considered: the temperature distribution, the force equilibrium equations and the constitutive thermo-elastic relationships, including the expansion due to the austenite-martensite transformation. A good agreement between the experimental and theoretical values for the temperature distribution was obtained with the differences at the end of the quenching being no higher than 0.5%. The experimental behavior of the balls in a mill simulator, as well as the residual stress measured by X-ray diffraction, agreed satisfactorily with the theoretical predictions. © 2008 Elsevier B.V. All rights reserved.

Más información

Título según WOS: Residual stress during heat treatment of steel grinding balls
Título según SCOPUS: Residual stress during heat treatment of steel grinding balls
Título de la Revista: JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volumen: 208
Número: 01-mar
Editorial: ELSEVIER SCIENCE SA
Fecha de publicación: 2008
Página de inicio: 450
Página final: 456
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0924013608000654
DOI:

10.1016/j.jmatprotec.2008.01.007

Notas: ISI, SCOPUS