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Timothy Devenport, Bernard Rolfe, Michael Pereira and James M. Griffin
In this paper, the applicability of acoustic emission (AE) measurement of galling wear in sheet metal forming (SMF) is investigated.
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Annalisa Fortini, Alessio Suman, Alessandro Vulpio, Mattia Merlin and Michele Pinelli
Surface material loss due to erosive wear is responsible for the increased cost of maintenance and downtime in industries. Hence, hardfacing is one of the most valuable and effective techniques employed to improve the wear resistance of heavy-duty compon...
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Raul Simões, Bruno Martins, José Santos and Victor Neto
A mechanical seal promotes the connection between systems or mechanisms, preventing the escape of fluids to the exterior. Nonetheless, due to extreme working conditions, premature failure can occur. Diamond, due to its excellent properties, is heralded a...
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Almira Zhilkashinova, Madi Abilev and Assel Zhilkashinova
The development of novel designs for hydropower plants is of high interest nowadays. Studies have shown the negative effect of fluid flow on the turbines of mini-hydropower plants when using them in the conditions of the mountain river. To reduce the dam...
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Francisco Silva, Rui Martinho, Maria Andrade, António Baptista and Ricardo Alexandre
It is well known that injection of glass fibre?reinforced plastics (GFRP) causes abrasive wear in moulds? cavities and runners. Physical vapour deposition (PVD) coatings are intensively used to improve the wear resistance of different tools, also being o...
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V. G. Ravlyuk
Pág. 111 - 126
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Andresa Baptista, Gustavo Pinto, Francisco J. G. Silva, Andreia A. Ferreira, Arnaldo G. Pinto and Vitor F. C. Sousa
The automotive industry is a pioneer in solutions that meet market expectations. However, in the automotive industry, some less environmentally friendly technologies are still used, such as electroplating. Due to legislative restrictions in several count...
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Alfredo Morales, Oscar Piamba and Jhon Olaya
We report the results of the influence of the acetylene and oxygen gas pressure on the wear resistance of aluminum?bronze coatings deposited on naval brass substrate by means of the thermal (flame) deposition process. The coatings were characterized by m...
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Luca Pezzato, Dragos Vranescu, Marco Sinico, Claudio Gennari, Alessio Giorgio Settimi, Pietro Pranovi, Katya Brunelli and Manuele Dabalà
In this work, the tribocorrosion behavior of plasma electrolytic oxidation (PEO)-coated AZ91 samples was studied. In particular, two different coatings were produced and compared. One was obtained with an alkaline electrolyte containing sodium phosphate,...
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Marina Kovaleva, Mayya Prozorova, Maria Arseenko, Yuri Tyurin, Oleg Kolisnichenko, Maxim Yapryntsev, Vseslav Novikov, Olga Vagina and Viacheslav Sirota
In this work, dense zircon-based ceramic coatings were obtained from inexpensive zircon powder on a steel substrate by using a new multi-chamber gas-dynamic accelerator. The microstructure and phase composition of the coating were characterized by scanni...
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Jean Robert Pereira Rodrigues, Mauro Araújo Medeiros, Flávia Cristina Sousa e Silva, Keyll Carlos Ribeiro Martins, Marcio Bacci da Silva, Álisson Rocha Machado
Pág. 41 - 45
During the manufacture of a mould, machining is certainly the most important process. The composition required to provide important properties in the steels used, such as hardness, wear and corrosion resistance, results in a low machinability has resulte...
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Edoardo Goti, Andrea Mura, Haozhe Wang, Xiang Ji and Jing Kong
Among the amazing properties of graphene, superlubricity is one of the most promising properties. This property can be used in industrial field components to reduce friction without using liquid lubricants, and therefore, improve machines? efficiency and...
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Thalita Cristina de Paula, Cintia C Petry Mazzaferro (Author); Daniela Fátima Giarollo; Gelsa E Navarro Hidalgo, Breno Basso (Author)
Pág. e50488
Martensitic steels have been successfully employed in resource-based industries where components must endure aggressive conditions. In industrial practice, many parts of these components are joined by welding techniques. The aim of this work was to under...
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Jessica Hembus, Felix Ambellan, Stefan Zachow and Rainer Bader
Currently, new materials for knee implants need to be extensively tested but such tests are expensive in a knee wear simulator in a realized design. However, using a rolling-sliding test bench, these materials can be examined under the same test conditio...
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Duy Quang Pham, Christopher C. Berndt, Ameneh Sadeghpour, Hala Zreiqat, Peng-Yuan Wang and Andrew S. M. Ang
In this work, we measured the mechanical properties and tested the cell viability of a bioceramic coating, strontium?hardystonite?gahnite (Sr?HT?G, Sr?Ca2ZnSi2O7?ZnAl2O4), to evaluate potential use of this novel bioceramic for bone regeneration applicati...
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Harpal Singh, Kalyan C. Mutyala and Gary L. Doll
Solid lubricant molybdenum disulfide (MoS2) coatings have been frequently used to lubricate mechanisms operating in environments where oil and grease lubrication are ineffective. This work evaluated the rolling contact performance of a Titanium-containin...
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Artur Olszak, Karol Osowski, Ireneusz Musialek, Elzbieta Rogos, Andrzej Kesy and Zbigniew Kesy
This paper presents the results of physicochemical and tribological tests of vegetable oils obtained by the supercritical fluid extraction method from berry seeds. The research was conducted by using these oils as the raw material for the biodegradable h...
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Romany R. Moussa, Amer E. Ali, Ragab K. Abdel-Magied, Mohamed N. Elshiekh
Pág. 183 - 187
The mechanical properties as well as microstructure of the ductile cast iron (DCI) are most likely affected by heat treatments. In this work, the mechanical properties of different heat treated of DCI alloy were investigated. Two heat treatment (HT)...
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Wan-Jui Shen, Ming-Hung Tsai and Jien-Wei Yeh
(Al0.34Cr0.22Nb0.11Si0.11Ti0.22)50N50 high-entropy nitride coatings prepared by reactive magnetron sputtering have been proved to have high hardness and superior oxidation resistance. Their thermal stability, adhesion strength, and cutting performance we...
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Alessandra Ciniero, Julian Le Rouzic and Tom Reddyhoff
We present a study on the simultaneous evolution of the electron emission and surface charge accumulation that occurs during scratching tests in order to monitor coating failure. Steel discs coated with a diamond-like-carbon (DLC) film were scratched in ...
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