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Open AccessArticle

Improvement of Adhesive Wear Behavior by Variable Heat Treatment of a Tool Steel for Sheet Metal Forming

Materials Pro Group, Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica, Universidad de Oviedo, Independencia 13, 33004 Oviedo, Spain
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Materials 2019, 12(17), 2831; https://doi.org/10.3390/ma12172831
Received: 31 July 2019 / Revised: 29 August 2019 / Accepted: 2 September 2019 / Published: 3 September 2019
(This article belongs to the Special Issue Microstructure and Mechanical Properties of Steels)
Vanadis 10 steel is a powder metallurgy (PM) processed tool steel. It is a ledeburitic steel with 8% Cr and 10% V. By deliberately varying the process parameters related to the quenching, tempering, and nitriding of these steels, the aim of this study is to determine which of these parameters have a significant influence on its adhesive wear resistance. The research methodology employed was a Design of Experiments (DoE) with six factors and two levels for each factor. The tempering temperature, number of temperings, and carrying out of a thermochemical nitriding treatment were found to have a significant effect. To increase adhesive wear resistance, austenitization at 1100 °C with air cooling is recommended, followed by three temperings at 500 °C and a subsequent nitriding treatment. It should be noted that the quench cooling medium does not have a significant influence on wear resistance. Furthermore, (Fe,Cr)7C3 (M7C3 carbides) are transformed into carbonitrides during nitriding. However, (Fe,V)C (MC carbides) are not affected by this nitriding process. View Full-Text
Keywords: tool steel; powder metallurgy; adhesive wear; nitriding; carbonitrides; tempering tool steel; powder metallurgy; adhesive wear; nitriding; carbonitrides; tempering
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Gonzalez-Pociño, A.; Alvarez-Antolin, F.; Asensio-Lozano, J. Improvement of Adhesive Wear Behavior by Variable Heat Treatment of a Tool Steel for Sheet Metal Forming. Materials 2019, 12, 2831.

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