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Behavior of forging steels under cyclic loading — the benefit of air‐hardening martensites

Schmiedl, Tobias ; Gramlich, Alexander R. M. ; Schönborn, Steffen ; Melz, Tobias (2020)
Behavior of forging steels under cyclic loading — the benefit of air‐hardening martensites.
In: Steel research international, 91 (11)
doi: 10.1002/srin.202000172
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

The development of air‐hardening martensitic forging (LHD: luft härtend duktil) steels offers high material performance with a short and simple process route. In this study, five alloys (L1–L5), based on the existing LHD alloy concept but with different contents of aluminum, titanium, boron, and molybdenum, are cast at laboratory scale. The casted blocks are hot forged into semifinished products and cooled in air (uncontrolled). The tensile properties, the Charpy V‐notch impact energy, the cyclic material behavior, and the fatigue strength of the alloys L1–L5 are opposed to each other. Furthermore, the material properties are compared with the standard quench and tempered (Q+T) steel 42CrMo4 (reference material) and ranked against previously developed forging steels. The tensile properties and Charpy V‐notch impact energy are comparable with those of the reference material, whereas the new alloy concepts show a significantly higher cyclic yield strength and fatigue strength.

Typ des Eintrags: Artikel
Erschienen: 2020
Autor(en): Schmiedl, Tobias ; Gramlich, Alexander R. M. ; Schönborn, Steffen ; Melz, Tobias
Art des Eintrags: Bibliographie
Titel: Behavior of forging steels under cyclic loading — the benefit of air‐hardening martensites
Sprache: Englisch
Publikationsjahr: 2020
Ort: Weinheim
Verlag: Wiley-VCH
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Steel research international
Jahrgang/Volume einer Zeitschrift: 91
(Heft-)Nummer: 11
Kollation: 10 Seiten
DOI: 10.1002/srin.202000172
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Kurzbeschreibung (Abstract):

The development of air‐hardening martensitic forging (LHD: luft härtend duktil) steels offers high material performance with a short and simple process route. In this study, five alloys (L1–L5), based on the existing LHD alloy concept but with different contents of aluminum, titanium, boron, and molybdenum, are cast at laboratory scale. The casted blocks are hot forged into semifinished products and cooled in air (uncontrolled). The tensile properties, the Charpy V‐notch impact energy, the cyclic material behavior, and the fatigue strength of the alloys L1–L5 are opposed to each other. Furthermore, the material properties are compared with the standard quench and tempered (Q+T) steel 42CrMo4 (reference material) and ranked against previously developed forging steels. The tensile properties and Charpy V‐notch impact energy are comparable with those of the reference material, whereas the new alloy concepts show a significantly higher cyclic yield strength and fatigue strength.

Freie Schlagworte: forging steels, fracture behavior, martensite, medium manganese steels, tensile and cyclic properties
ID-Nummer: 2000172
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Special Issue: Highlights from ESTAD 2019

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Fachgebiet Systemzuverlässigkeit, Adaptronik und Maschinenakustik (SAM)
Hinterlegungsdatum: 29 Jan 2024 07:01
Letzte Änderung: 29 Jan 2024 07:02
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