Fatigue Strength and Mechanical Properties of Conventional and Additive Manufactured Alloys
A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Metals and Alloys".
Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 2188
Special Issue Editors
Interests: fatigue and fracture; fracture mechanics; multiaxial fatigue; additive manufacturing; fatigue life assessment methodologies; local approaches
Interests: tribology; wear; microstructure characterization
Special Issues, Collections and Topics in MDPI journals
Interests: biomaterials; mechanical engineering
Interests: fatigue; thermography; mechanical characterization
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Additive manufacturing (AM) techniques have become widely acknowledged, allowing highly complex mechanical parts to be produced, which are not achievable with traditional manufacturing techniques. One of the major advantages of AM is the possibility to customize the shape and mechanical properties of the component, resulting in more application prospects, such as in aerospace, biomedical, and automotive industries. However, AM processes cause a high variability in the achieved mechanical properties that are closely related to the process parameters.
Indeed, depending on the process parameters, the component may be affected by poor surface quality and several defects (such as porosities, inclusions, and a lack of fusion defects). The microstructure is well affected due to the thermal history experienced by the component during the production process, leading to inhomogeneous and anisotropic features. All these aspects affect the mechanical properties of the final component.
Fatigue failure represents the most common in-service failure of mechanical components, and it is highly influenced by the presence of defects. Research efforts are needed both to improve the quality of the produced AM parts and to develop methodologies to directly account for all the factors that influence the fatigue behaviour. Such developments in the AM techniques and in the design methodologies are highly desirable to ensure a sufficient degree of reliability for AM parts and, as a consequence, to promote their use at an industrial scale.
This Special Issue aims to collect original studies on the fatigue characterization of AM alloys, presenting the experimental fatigue results in relation to process parameters and providing information on failure mechanisms and microstructural features and defects. Papers that compare the fatigue properties of AM and conventional alloys are highly appreciated, as well as those that focus on numerical techniques for fatigue life assessment.
Dr. Pietro Foti
Dr. Danilo D'Andrea
Dr. Dario Santonocito
Dr. Giacomo Risitano
Guest Editors
Manuscript Submission Information
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Keywords
- microstructure
- defects
- fatigue behaviour
- failure mechanisms
- mechanical properties
- process parameters
- additive manufacturing
- fatigue life assessment
