Special Issue "Fatigue and Wear for Steels"

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: 31 March 2018

Special Issue Editor

Guest Editor
Prof. Dr.-Ing. Sabine Weiß

Lehrstuhl Metallkunde und Werkstofftechnik, Konrad-Wachsmann-Allee 17, 03046 Cottbus, Germany
Website | E-Mail
Interests: materials characterization; electron microscopy; tribological behavior of biomedical steels; monotonic and cyclic deformation of oligocrystalline structures; high temperature stable intermetallic titanium aluminides; development of wear resistant coatings

Special Issue Information

Dear Colleagues,

Steel is well known for its diversity. Depending on the alloying elements tensile strengths between 300 MPa and more than 1000 MPa can be reached. Steels can be very brittle or extremely ductile, some of them are corrosion-, fatigue- or wear resistant, others not. This broad range of properties and applications of steels, combined with comparably low productions costs, qualify them to be, perhaps, the most important industrial alloys used by man.

In this Special Issue, we would like to provide a wide set of articles on various aspects of fatigue and/or wear resistance of steels, possibly with respect to the similarities between these two natures of load. Experimental results, as well as numerical and analytical models, can describe the complexity of microstructure characteristics and mechanical phenomena interacting during load and influencing fatigue or tribological properties of steels.

For this purpose, the Special Issue covers all articles on the fatigue and/or tribological behavior, microstructure, defect structure, and performance in final products of all types of steels.

Prof. Dr.-Ing. Sabine Weiß
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Steel
  • High Cycle Fatigue
  • Low Cycle Fatigue
  • Tribology
  • Wear
  • Microstructure

Published Papers (3 papers)

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Research

Open AccessArticle Effect of Shot Blasting on Fatigue Strength of Q345B Steel Plate with a Central Hole
Metals 2017, 7(12), 517; doi:10.3390/met7120517
Received: 15 October 2017 / Revised: 5 November 2017 / Accepted: 7 November 2017 / Published: 23 November 2017
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Abstract
The fatigue strength of Q345B steel plate with a central hole after shot blasting is studied herein. The improvement of fatigue strength related to the failure behavior is highlighted with due analysis of fatigue cracks initiation at the defect below the condensed surface
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The fatigue strength of Q345B steel plate with a central hole after shot blasting is studied herein. The improvement of fatigue strength related to the failure behavior is highlighted with due analysis of fatigue cracks initiation at the defect below the condensed surface induced by shot blasting. The effect of stress concentration is shown to be non-ignorable in the fatigue strength analysis. Codified fatigue categories in accordance with EN 1993-1-9 are used in drawing a comparison of studied fatigue behavior. Finally, an analytical model based on a modified reference model is proposed for the evaluation of the test fatigue strength results. It is demonstrated that the predicted results agree well with test data, since the stress ratio and the size of the defect as well as the stress concentration are appropriately considered. Full article
(This article belongs to the Special Issue Fatigue and Wear for Steels)
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Open AccessArticle Thermally-Induced Crack Evaluation in H13 Tool Steel
Metals 2017, 7(11), 475; doi:10.3390/met7110475
Received: 24 September 2017 / Revised: 21 October 2017 / Accepted: 26 October 2017 / Published: 6 November 2017
Cited by 1 | PDF Full-text (3458 KB) | HTML Full-text | XML Full-text
Abstract
This study reported the effect of thermal wear on cylindrical tool steel (AISI H13) under aluminum die-casting conditions. The AISIH13 steels were immersed in the molten aluminum alloy at 700 °C before water-quenching at room temperature. The process involved an alternating heating and
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This study reported the effect of thermal wear on cylindrical tool steel (AISI H13) under aluminum die-casting conditions. The AISIH13 steels were immersed in the molten aluminum alloy at 700 °C before water-quenching at room temperature. The process involved an alternating heating and cooling of each sample for a period of 24 s. The design of the immersion test apparatus stylistically simulated aluminum alloy dies casting conditions. The testing phase was performed at 1850, 3000, and 5000 cycles. The samples were subjected to visual inspection after each phase of testing, before being examined for metallographic studies, surface crack measurement, and hardness characteristics. Furthermore, the samples were segmented and examined under optical and Scanning Electron Microscopy (SEM). The areas around the crack zones were additionally examined under Energy Dispersive X-ray Spectroscopy (EDXS). The crack’s maximum length and Vickers hardness profiles were obtained; and from the metallographic study, an increase in the number of cycles during the testing phase resulted in an increase in the surface crack formation; suggesting an increase in the thermal stress at higher cycle numbers. The crack length of Region I (spherically shaped) was about 47 to 127 µm, with a high oxygen content that was analyzed within 140 µm from the surface of the sample. At 700 °C, there is a formation of aluminum oxides, which was in contact with the surface of the H13 sample. These stresses propagate the thermal wear crack length into the tool material of spherically shaped Region I and cylindrically shape Region II, while hardness parameters presented a different observation. The crack length of Region I was about 32% higher than the crack length of Region II. Full article
(This article belongs to the Special Issue Fatigue and Wear for Steels)
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Open AccessArticle Optimizing Gear Performance by Alloy Modification of Carburizing Steels
Metals 2017, 7(10), 415; doi:10.3390/met7100415
Received: 30 August 2017 / Revised: 24 September 2017 / Accepted: 26 September 2017 / Published: 6 October 2017
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Abstract
Both the tooth root and tooth flank load carrying capacity are characteristic parameters that decisively influence gear size, as well as gearbox design. The principal requirements towards all modern gearboxes are to comply with the steadily-increasing power density and to simultaneously offer a
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Both the tooth root and tooth flank load carrying capacity are characteristic parameters that decisively influence gear size, as well as gearbox design. The principal requirements towards all modern gearboxes are to comply with the steadily-increasing power density and to simultaneously offer a high reliability of their components. With increasing gear size, the load stresses at greater material depth increase. Thus, the material and particularly the strength properties also at greater material depth gain more importance. The present paper initially gives an overview of the main failure modes of case carburized gears resulting from material fatigue. Furthermore, the underlying load and stress mechanisms, under particular contemplation of the gear size, will be discussed, as these considerations principally define the required material properties. Subsequently, the principles of newly developed, as well as modified alloy concepts for optimized gear steels with high load carrying capacity are presented. In the experimental work, the load carrying capacity of the tooth root and tooth flank was determined using a pulsator, as well as an FZG back-to-back test rig. The results demonstrate the suitability of these innovative alloy concepts. Full article
(This article belongs to the Special Issue Fatigue and Wear for Steels)
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