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Bending fatigue behavior of metastable and stable austenitic stainless steels with different surface morphologies
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  • Tong Zhu,
  • Marek Smaga,
  • Mustafa Bozoglu,
  • Siva Teja Sala,
  • Nikolai Kashaev,
  • Sergiy Antonyuk,
  • Tilmann Beck
Tong Zhu
Rheinland-Pfalzische Technische Universitat Kaiserslautern-Landau Lehrstuhl fur Werkstoffkunde
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Marek Smaga
Rheinland-Pfalzische Technische Universitat Kaiserslautern-Landau Lehrstuhl fur Werkstoffkunde

Corresponding Author:m.smaga@mv.rptu.de

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Mustafa Bozoglu
Rheinland-Pfalzische Technische Universitat Kaiserslautern-Landau Fachbereich Maschinenbau und Verfahrenstechnik
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Siva Teja Sala
Helmholtz-Zentrum Hereon Institut fur Werkstoffmechanik
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Nikolai Kashaev
Helmholtz-Zentrum Hereon Institut fur Werkstoffmechanik
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Sergiy Antonyuk
Rheinland-Pfalzische Technische Universitat Kaiserslautern-Landau Fachbereich Maschinenbau und Verfahrenstechnik
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Tilmann Beck
Rheinland-Pfalzische Technische Universitat Kaiserslautern-Landau Lehrstuhl fur Werkstoffkunde
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Abstract

The surface morphology has a significant influence on the fatigue behavior of components. For austenitic stainless steels (ASSs), this issue is even more pronounced due to their metastability. Based on the complex deformation mechanisms of metastable ASSs, which include dislocation slip, deformation twinning, and deformation-induced martensitic phase transformation, the metastable stainless steel AISI 347 was investigated in this study together with the stable AISI 904L as a reference material. 4-point bending fatigue tests with load ratio R = 0.1 and testing frequency f = 10 Hz at ambient temperature were carried out on specimens with 5 technically relevant surfaces morphologies: mechanical polished, milled, micro-shot peened, laser shock-peened, and ultrasonic modified. Systematic material characterizations were carried out to clarify the key influences of these morphologies on the fatigue behavior. Deformation-induced martensite layers were proven to improve the fatigue life in metastable austenitic steels, which open perspectives to extend the lifetime of components.
21 Feb 2024Submitted to Fatigue & Fracture of Engineering Materials & Structures
21 Feb 2024Submission Checks Completed
21 Feb 2024Assigned to Editor
07 Apr 2024Review(s) Completed, Editorial Evaluation Pending
30 Jun 2024Reviewer(s) Assigned
02 Aug 2024Review(s) Completed, Editorial Evaluation Pending
03 Aug 2024Editorial Decision: Revise Minor
01 Sep 20242nd Revision Received
01 Sep 2024Submission Checks Completed
01 Sep 2024Assigned to Editor
01 Sep 2024Reviewer(s) Assigned
05 Sep 2024Review(s) Completed, Editorial Evaluation Pending
07 Sep 2024Editorial Decision: Accept