Metals

Journal Browser

► Journal Browser

Environmental Effects on the Fatigue Behavior of Conventionally and Additively Manufactured Metallic Materials

Share This Special Issue

Special Issue Information

Dear Colleagues,

For this Special Issue, we are inviting recent advances in the comprehension of environmental effects on the fatigue behavior of metallic materials. Experimental, theoretical, and numerical studies aimed at incorporating the research outcomes into design approaches for the fatigue assessment of structural components and mechanical parts are welcomed.

The environment plays a crucial role in dictating the fatigue strength of metallic component exposed to the simultaneous actions of corrosive environment and time-varying stresses. For instance, the synergistic effect of corrosion and fatigue is known to reduce the fatigue strength to an extent even larger than the reduction in fatigue strength caused by the notch effect exerted by corrosion pits. In addition, stress corrosion cracking, hydrogen embrittlement, and galvanic effects can further complicate this damaging scenario. The current state-of-art knowledge of these phenomena is still deficient, also in view of the lack of standardized testing conditions. On the other hand, the advent of emerging technologies, like additive manufacturing or welding of dissimilar materials, will bring to operating conditions materials with very complicated corrosion–fatigue behavior. A meaningful example thereof is the growing interest in additively manufacturing biomedical implants with cellular lattice structures, thus exposing in the aggressive human environment components with extremely high surface-to-volume ratios.

We hope to receive many propositions to provide a high impact for this Special Issue and to stimulate essential collaborations between materials scientists, technologists, and mechanical designers.

Prof. Dr. Vigilio Fontanari
Dr. Matteo Benedetti
Dr. Stefano Rossi
Guest Editors

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 submissions that pass pre-check are 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 2600 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

fatigue
corrosion
environment
stress corrosion cracking
hydrogen embrittlement
galvanic effect

Published Papers (2 papers)

Download All Papers

Research

Jump to: Review

14 pages, 8444 KiB

Open AccessFeature PaperArticle

Fatigue Corrosion Behavior of Friction Welded Dissimilar Joints in Different Testing Conditions

by Stefano Rossi, Francesca Russo, Alberto Maria Lemmi, Matteo Benedetti and Viglio Fontanari

Metals 2020, 10(8), 1018; https://doi.org/10.3390/met10081018 - 29 Jul 2020

Cited by 5 | Viewed by 2810

Abstract

Our study will be focused on stainless steel AISI 304—carbon steel ASTM A105 joints obtained by rotary friction welding and on their fatigue corrosion behavior in different testing environments. As a first thing, the joints will be characterized by microscopy and electrochemical techniques. The manuscript will then describe the optimization of the experimental setup and the validation of the testing procedure. After that, the fatigue behavior of the joints will be tested in different aggressive environments. This study pointed out that it is possible to build a simple and low-cost setup for the study of fatigue corrosion behavior of dissimilar joints while exploiting in situ electrochemical measurements to follow the fatigue corrosion process. Full article

(This article belongs to the Special Issue Environmental Effects on the Fatigue Behavior of Conventionally and Additively Manufactured Metallic Materials)

► Show Figures

Figure 1

Review

Jump to: Research

23 pages, 18233 KiB

Open AccessReview

Structural and Biomedical Properties of Common Additively Manufactured Biomaterials: A Concise Review

by Kristin S. Ødegaard, Jan Torgersen and Christer W. Elverum

Metals 2020, 10(12), 1677; https://doi.org/10.3390/met10121677 - 15 Dec 2020

Cited by 25 | Viewed by 5589

Abstract

Biomaterials are in high demand due to the increasing geriatric population and a high prevalence of cardiovascular and orthopedic disorders. The combination of additive manufacturing (AM) and biomaterials is promising, especially towards patient-specific applications. With AM, unique and complex structures can be manufactured. Furthermore, the direct link to computer-aided design and digital scans allows for a direct replicable product. However, the appropriate selection of biomaterials and corresponding AM methods can be challenging but is a key factor for success. This article provides a concise material selection guide for the AM biomedical field. After providing a general description of biomaterial classes—biotolerant, bioinert, bioactive, and biodegradable—we give an overview of common ceramic, polymeric, and metallic biomaterials that can be produced by AM and review their biomedical and mechanical properties. As the field of load-bearing metallic implants experiences rapid growth, we dedicate a large portion of this review to this field and portray interesting future research directions. This article provides a general overview of the field, but it also provides possibilities for deepening the knowledge in specific aspects as it comprises comprehensive tables including materials, applications, AM techniques, and references. Full article

(This article belongs to the Special Issue Environmental Effects on the Fatigue Behavior of Conventionally and Additively Manufactured Metallic Materials)

► Show Figures