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Surface Treatments for Protecting from Fracture and Fatigue Damage II
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Department of Mechanical Engineering, University of Coimbra, 3030-788 Coimbra, Portugal
Department of Chemical Engineering, Materials and Environment, Sapienza University of Rome, 00184 Rome, Italy
Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, 03043 Cassino, FR, Italy
INEGI, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Surface Treatments for Protecting from Fracture and Fatigue Damage II

Abstract submission deadline
closed (20 October 2023)
Manuscript submission deadline
closed (30 December 2023)
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3342

Topic Information

Dear Colleagues,

We would like to invite you to submit your work to this Topic on "Surface Treatments for Protecting from Fracture and Fatigue Damage". The topic is very popular in many engineering applications and affects the structural integrity of a number of critical components and structures spanning different scale lengths, from nano to macro-structures.

The present issue aims to offer a complete update on these interesting subjects, evaluating different aspects of the problem.

The topic will serve as a forum for papers on the following subjects:

  • Innovative coatings.
  • Innovative and sustainable treatments for improving surface properties.
  • Methods for monitoring the properties of the surfaces under service conditions.
  • Innovative methodologies for applying protective and coatings and re-integration materials to structures.
  • Innovative and sustainable surface treatments against fatigue damage.
  • Case studies on innovative and sustainable coatings and surface protection.
  • Applications to real structures.

Dr. Ricardo Branco
Prof. Dr. Filippo Berto
Prof. Dr. Francesco Iacoviello
Dr. José António Correia
Topic Editors

Participating Journals

Journal Name Impact Factor CiteScore Launched Year First Decision (median) APC
Applied Mechanics
applmech 		- 1.4 2020 22.5 Days CHF 1200
Applied Sciences
applsci 		2.7 4.5 2011 16.9 Days CHF 2400
Coatings
coatings 		3.4 4.7 2011 13.8 Days CHF 2600
Materials
materials 		3.4 5.2 2008 13.9 Days CHF 2600
Metals
metals 		2.9 4.4 2011 15 Days CHF 2600

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Published Papers (2 papers)

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8 pages, 819 KiB  
Communication
Optimization of Ultrasonic Powder Coatings on the Surface of Treated Materials
by Oleg M. Gradov
Appl. Sci. 2023, 13(10), 6034; https://doi.org/10.3390/app13106034 - 14 May 2023
Cited by 1 | Viewed by 674
Abstract
By generalizing the theory of contact of solids for the case of triple contact of working bodies, the powder particle, the treated surface and the problem of establishing an optimal value for the amplitude of ultrasonic exposure, at which the coating process proceeds [...] Read more.
By generalizing the theory of contact of solids for the case of triple contact of working bodies, the powder particle, the treated surface and the problem of establishing an optimal value for the amplitude of ultrasonic exposure, at which the coating process proceeds most efficiently, were solved. The relevance of such a solution is directly determined by the need to obtain high-quality coating. Analytical expressions of the desired values for the physical parameters of the materials of the objects participating in the working process were obtained. Possible limitations regarding the most important characteristics of the installation were analyzed. Approximate evaluation of the optimal number of working bodies for the resonant chamber was derived. The basic time of the process duration was estimated for the total treatment of the chosen surface by working bodies. Full article
(This article belongs to the Topic Surface Treatments for Protecting from Fracture and Fatigue Damage II)
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14 pages, 9412 KiB  
Article
The Effect of Particle Type and Size on CoCr Surface Properties by Fine-Particle Shot Peening
by Chavarat Jarungvittayakon, Anak Khantachawana and Paphon Sa-ngasoongsong
Appl. Sci. 2023, 13(9), 5814; https://doi.org/10.3390/app13095814 - 08 May 2023
Cited by 1 | Viewed by 1211
Abstract
Cobalt–chromium (CoCr) alloy is widely used for medical implants such as for dental or joint replacements because of its strength and high corrosion resistance. By throwing a spherical media against a material surface, fine-particle shot peening can modify surface properties and, as a [...] Read more.
Cobalt–chromium (CoCr) alloy is widely used for medical implants such as for dental or joint replacements because of its strength and high corrosion resistance. By throwing a spherical media against a material surface, fine-particle shot peening can modify surface properties and, as a result, has been widely used as a low-cost and simple method to increase a metal’s wear resistance. However, no recent literature has reported the effect of particle type and size on the surface properties of CoCr alloys. This study examined two different particle types (ceramic (alumina–zirconia composites) and silica (SiO2)) and three different particle sizes to determine their effects on CoCr’s surface properties after fine-particle shot peening. The surface properties, including morphology, roughness, hardness, residual stress, and cytotoxicity, were tested to evaluate the effect of the process. The larger size and higher hardness of the particle (ceramic) changed the surface microstructure more than particles with smaller sizes and lower hardness (silica). The results of the cytotoxicity test showed that the fine-particle shot peening on the CoCr material did not affect cell viability, an important fact when considering its potential use as a surface material for medical implants. The results showed that fine-particle shot peening on CoCr material can improve several surface properties and that the larger ceramic particle offers the best results. Full article
(This article belongs to the Topic Surface Treatments for Protecting from Fracture and Fatigue Damage II)
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