Influencia de la microestructura de partida en la ecuación constitutiva para la fluencia de un acero

Castellanos, J.; Gutiérrez, Víctor Hugo Villanueva; Rieiro, Ignacio; Ruano, Oscar Antonio; Carsí, Manuel

doi:10.3989/revmetalm.0837

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…Por lo tanto, el empleo de estos aceros, especialmente los de contenido medio de carbono, permite reducir los costes económicos y energéticos de fabricación de piezas forjadas en aproximadamente un 15-25 %, en función del tipo de pieza. En este tipo de aceros, el control de las propiedades y de la microestructura se logra a través del afino de grano y del endurecimiento por precipitación durante el enfriamiento de la ferrita [1][2][3][4][5][6] .…”

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Criterios de predicción de inestabilidades plásticas en procesos de conformado en caliente. (Parte II. Caracterización de la fluencia plástica de un acero microaleado de medio carbono usando criterios continuos y fenomenológicos)

Omar¹,

Alcelay²,

Prado³

2010

REVMETAL

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Criterios de predicción de inestabilidades plásticas en procesos de conformado en caliente. (Parte II. Caracterización de la fluencia plástica de un acero microaleado de medio carbono usando criterios continuos y fenomenológicos)

Omar¹,

Alcelay²,

Prado³

2010

REVMETAL

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Criteria for prediction of plastic instabilities for hot working processes: Part II. Characterization of plastic flow of medium carbon microalloyed steel using phenomenological and continuum criteria

Omar

Alcelay

Prado

2012

Welding International

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To cite this article: A. Al Omar , I. Alcelay & J. M. Prado (2012) Criteria for prediction of plastic instabilities for hot working processes: Part II. Characterization of plastic flow of medium carbon microalloyed steel using phenomenological and continuum criteria, Welding International, 26:12, 935-943,In the study of hot working processes, the knowledge of interaction between microstructural behaviour and control process parameters such as temperature, strain rate, and strain is very important. In the last decades, processing maps have been developed to design, control, and optimize the hot strain of various metallic materials. In this work, to study the hot workability of medium carbon microalloyed steel, during hot compression tests, a comparative study between two types of processing maps constructed using phenomenological and thermodynamic continuum criteria has been carried out. The analysis of the maps indicates that the studied steel does not undergo any type of plastic instability. However, the maps corresponding to the strain of 1 ¼ 0.6 reveal a domain of dynamic recrystallization, considered as the more efficient domain within the 'safe' region process. This domain is centred at 11508C and 10 s 21 . Also, the comparative study of the obtained results shows the difference between the positions of plastic strain domains predicted by the two criteria.

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Hot forming of a new steel used in stamping dies and tooling

Barea

Conejero

Candela

et al. 2013

International Journal of Materials Research

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The hot forming behavior of a new steel used in manufacturing processes at high temperatures such as hot stamping has been studied in this article. Compression and tensile tests were performed at low and high strain rates in a temperature range of 1 173–1 473 K to simulate forming processing conditions. The deformation data obtained from these experiments were correlated with the Garofalo equation with a stress exponent of 4.4 and an activation energy of 277 kJ · mol−1. This equation was used to determine the J-factor efficiency and stability of the steel. Temperatures in the range 1 423 to 1 473 K are recommended to conduct the forming process.

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Influencia de la microestructura de partida en la ecuación constitutiva para la fluencia de un acero

Cited by 3 publications

References 11 publications

Criterios de predicción de inestabilidades plásticas en procesos de conformado en caliente. (Parte II. Caracterización de la fluencia plástica de un acero microaleado de medio carbono usando criterios continuos y fenomenológicos)

Criterios de predicción de inestabilidades plásticas en procesos de conformado en caliente. (Parte II. Caracterización de la fluencia plástica de un acero microaleado de medio carbono usando criterios continuos y fenomenológicos)

Criteria for prediction of plastic instabilities for hot working processes: Part II. Characterization of plastic flow of medium carbon microalloyed steel using phenomenological and continuum criteria

Hot forming of a new steel used in stamping dies and tooling

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