Thermal fatigue resistance of the salt quenched AISI H11 hot work tool steel.

• Autorzy: Molinari A. , Gialanella S. , Straffelini G.
• Konferencja: XVth Physical Metallurgy and Materials Science Conference on Advanced Materials & Technologies AMT'98, 17-21 May 1998, Kraków-Krynica, Poland
• Języki publikacji: EN

Abstrakty

EN

In the present work the thermal fatigue resistance of a typical hot work tool steel was studied. The material was subjected to salt quenching, by cooling the specimens in two different ways. The first cooling cycle produces a coarser microstructure than the second one, and induces the formation of upper bainite. While the thermal fatigue crack density is the same in the two materials, a clear difference in their propagation was found. The coarser microstructure and the presence of upper bainite tend to reduce the thermal fatigue resistance.

Słowa kluczowe

EN

fatigue; thermal fatigue; tool steel; hot work steel; resistance; microstructure

PL

zmęczenie; zmęczenie cieplne; stal narzędziowa; stal narzędziowa do pracy na gorąco; wytrzymałość; mikrostruktura

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 3
• Strony: 372--379
• Opis fizyczny: Bibliogr. 4 poz., tab., rys.

Twórcy

autor

Molinari A.

• Dipartimento di Igegneria dei Materiali, Universita di Trento

autor

Gialanella S.

• Dipartimento di Igegneria dei Materiali, Universita di Trento

autor

Straffelini G.

• Dipartimento di Igegneria dei Materiali, Universita di Trento

• Universita di Trento, Dipartimento di Igegneria dei Materiali

Bibliografia

• [1] A. Molinari et al.: Proceedings of 16° Convegno Nazionale Trattamenti Termici, Salsomaggiore 4-6 June 1997, ed. AIM Milano, p. 155
• [2] P. Brozzo: Struttura e proprietà meccaniche dei materiali metallici, vol. 2, ed. E.C.I.G. 1979
• [3] H.K.D.K. Badhesia: Bainite in Steels, The Institute of Materials, London, 1992
• [4] G.A. Roberts, R.A. Cary: Tool Steels ASM 1980