Mechanical properties of high speed steel used in hot strip work rolls

• Autorzy: Ziadi A. , Meciridi M.A. , Bouafia F. , Belhenini S.
• Języki publikacji: EN

Abstrakty

EN

The rolls in the finishing stands must have good resistance to both wear and fire cracks: The use of high-speed steel at the finishing stands has shown satisfactory results. The composition of this high-alloyed steel is an important parameter as the most significant change lays on the type, morphology, and volume fraction of the eutectics carbides. The heat treatment of these products consists of high temperature austenization followed by quenching and two temperings, as required in order to increase their overall hardness and to completely eliminate residual austenite. The influence of tempering temperatures on the mechanical properties of these products, determined using tensile, hot compression and fracture toughness tests, was studied in this research work. Their corresponding failure micromechanisms were defined by means of the analysis of fracture surfaces.

Słowa kluczowe

EN

high speed steels; tensile; fracture toughness; hot compression; mechanical properties; failure micromechanisms

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2007
• Tom: Vol. 7, nr 2(12)
• Strony: 319--326
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Ziadi A.

autor

Meciridi M.A.

autor

Bouafia F.

autor

Belhenini S.

• Department of Mechanical Engineering, University of Sidi Bel Abbes, BP.89, 22000, Algeria

Bibliografia

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• [7] Hwang LC, Lee S, Lee HC (1998) Mater Sci Eng A254:282
• [8] ASTM E9, Standards test methods of compression testing of metallic materials, vol. 03.01, pp 161-168
• [9] ESIS P2-92 (1992) ESIS procedure for determining the fracture behaviour of materials, European Structural Integrity Society
• [10] ASTM E399-90 (1995) Standards test methods for plane-strain fracture toughness of metallic materials. Annual Book of ASTM Standards, vol. 03.01, pp 412--442