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Journal of Failure Analysis and Prevention

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01-06-2012 | Technical Article---Peer-Reviewed

Analysis of Degradation and Failure Mechanisms that Develop in Hot Forging Die

Authors: Fayçal Njeh, Mohamed Kchaou, Riadh Elleuch, Foued El Halouani

Published in: Journal of Failure Analysis and Prevention | Issue 3/2012

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Abstract

A failed die, used to forge gas valves, was analyzed using macroscopic and microscopic equipment on some specimens. Fatigue cracks on the die were evidently observed on all the surfaces of the die. Many processes were found to be major contributors to have caused the die failure. Oxidation was observed in some areas, especially on plane surfaces and thin sections. Surface layers of tools at the tool-workpiece interface were not only exposed to high mechanical stresses but also to severe temperature cycles, which could have led to loss of strength and hardness. Metallographic analysis revealed that the oxide layers consisted of different diffusion layers which accelerated thermal fatigue mechanisms.

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Chastel, Y., Caillet, N., Bouchard, P.O.: Quantitative analysis of the impact of forging operations on fatigue properties of steel components. J. Mater. Process. Technol. 177, 202–205 (2006)CrossRef

Gagg, C.R., Lewis, P.R.: Wear as a product failure mechanism—overview and case studies. Eng. Fail. Anal. 14, 1618–1640 (2007)CrossRef

Gagg, C.R., Lewis, P.R.: In-service fatigue failure of engineered products and structures—case study review. Eng. Fail. Anal. 16, 1775–1793 (2009)CrossRef

Santos, C.A., Aguilar, M.T.P., Campos, H.B., Pertence, A.E.M., Cetlin, P.R.: Failure analysis of the die in the third hot forging stage of a gear blank. Eng. Fail. Anal. 13, 886–897 (2006)CrossRef

Kchaou, M., Elleuch, R., Desplanques, Y., Boidin, X., Degallaix, G.: Identification of failure mechanisms of H13 die on relation to the forging process—a case study of brass gas valves. Eng. Fail. Anal. 17, 403–415 (2010)CrossRef

Njeh, F., Kchaou, M., Elleuch, R., Hallouani, F.: Failure modes of die used for hot forging. In: Premier Congrès Tunisien de Mécanique (COTUME 2008), Hammamet, 17–19 Mar 2008

Felder, E., Montagut, J.L.: Friction and wear during the hot forging of steels. Tribol. Int. 20, 61–68 (1980)CrossRef

Kchaou, M., Elleuch, R., Desplanques, Y., Boidin, X., Degallaix, G.: Etude du comportement de l’acier X40CrMoV5-1 pré-oxydé en frottement-usure sous faible vitesse de glissement. Ann. Chim. Sci. Mater. 35(1), 41–57 (2010)

Sobis, T., Engel, U., Geiger, M.: A theoretical study on wear simulation in metal forming processes. J. Mater. Process. Technol. 34, 233–240 (1992)CrossRef

10.

Kanga, J.H., Parkb, I.W., Jaec, J.S., Kang, S.S.: A study on die wear model considering thermal softening (II): application of the suggested wear model. J. Mater. Process. Technol. 94, 183–188 (1999)CrossRef

11.

Brucelle, O., Bernhart, G.: Methodology for service life increase of hot forging tools. J. Mater. Process. Technol. 87, 237–246 (1999)CrossRef

12.

Sjöström, J., Bergström, J.: Thermal fatigue testing of chromium martensitic hot-work tool steel after different austenitizing treatments. J. Mater. Process. Technol. 153–154, 1089–1096 (2004)CrossRef

13.

Spera, D.A.: What is thermal fatigue? Thermal fatigue of materials components. In: ASTM STP 612, pp. 3–9. ASTM, Philadelphia (1976)

Title: Analysis of Degradation and Failure Mechanisms that Develop in Hot Forging Die
Authors: Fayçal Njeh
Mohamed Kchaou
Riadh Elleuch
Foued El Halouani
Publication date: 01-06-2012
Publisher: Springer US
Published in: Journal of Failure Analysis and Prevention / Issue 3/2012
Print ISSN: 1547-7029
Electronic ISSN: 1864-1245
DOI: https://doi.org/10.1007/s11668-012-9556-2

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