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Chavarat Jarungvittayakon, Anak Khantachawana and Paphon Sa-ngasoongsong
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 modi...
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Xianqiang Zhao, Zhaoran Xiao and Qingshan Wang
This study aims to clarify the relationship between surface hardness and the peak interfacial frictional coefficient under different particle sizes. The relationship between particle size and the peak interfacial frictional coefficient with different sur...
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Jan Valícek, Marta Harnicárová, Jan Rehor, Milena Ku?nerová, Jaroslava Fulemová, Miroslav Gombár, Ludmila Kucerová, Jan Filipenský and Jan Hnátík
The high-velocity oxy-fuel spraying process was used to investigate and improve the surface properties of a workpiece. The research was focused on the spherical surface of a workpiece made of high-strength steel, a ball and socket assembly. After sprayin...
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Ahmed Elkaseer, Amal Charles, Stella Schneider and Steffen G. Scholz
The work reported in this article leads towards the potential development of functionally graded structures and components using laser powder bed fusion.
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Kateryna Kostyk, Ivan Kuric, Milan Saga, Viktoriia Kostyk, Vitalii Ivanov, Viktor Kovalov and Ivan Pavlenko
The relevant problem is searching for up-to-date methods to improve tools and machine parts? performance due to the hardening of surface layers. This article shows that, after the magnetic-pulse treatment of bearing steel Cr15, its surface microhardness ...
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Mohamed Benaissa, Fethi Benkhenafou, Abdelkader Ziadi, Luis Borja Peral Martinez, Francisco Javier Belzunce, Lyes Douadji
Pág. 199 - 206
Shot-peening is a surface mechanical treatment, widely used to treat metallic parts in the aerospace and automotive industries. This mechanical surface treatment should not be confused with other common applications of other peening treatments, oriented ...
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Dorina Kovács, János Dobránszky
Pág. 214 - 219
Austenitic stainless steels have low corrosion resistance in applications where strong acids and vapors attack the surface, typically in food and chemical industries. This drawback can be improved by surface treatments. Salt bath, gaseous or plasma-based...
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Emilia-Adela Salca and Salim Hiziroglu
The objective of this experimental study was to evaluate the surface roughness and hardness of laminated wood-based composite panels as a function of exposure to high relative humidity (RH). All samples were conditioned in a room having a temperature of ...
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I. O. Vakulenko,V. H. Anofriiev,Yu. L. Nadezhdin
Pág. 256 - 258
The issues re. estimation of character of hardness change along a defect formed during operation of a railway wheel are considered.
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Roberto Montanari, Alex Lanzutti, Maria Richetta, Javokhir Tursunbaev, Emanuele Vaglio, Alessandra Varone and Claudio Verona
Austenitic stainless steels produced by laser powder bed fusion (L-PBF) are quite interesting materials owing to their specific microstructure consisting of dendrite walls built of dislocations pinned by many nano-oxides that involves significant strengt...
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A'rasy Fahruddin
Pág. 55 - 60
This research concerned the standard value of surface roughness on Computer Numerical Control (CNC) to obtain fine pipe cutting result and is more useful for company to simply recognize the appropriate standard gap in designing. Standard design used is 3...
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Zhiyi Leng, Shengfang Zhang, Wenzhe Wang, Hongtao Gu, Jian Yin, Ziguang Wang and Yu Liu
Hydrogen permeation reduces a material?s properties and increases the risk of brittle fracture, which causes a potential safety hazard. A workpiece?s hydrogen permeation resistance could be improved by improving its surface integrity through surface proc...
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Svetlana Zyhulia,Oksana Barauskiene
Pág. 22 - 28
We have developed a comprehensive technology to strengthen printing cylinders by forming a regular microrelief at the surface followed by chromium-plating.Our research into the influence of comprehensive machining of a printing cylinder on the quality of...
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Yongfeng Jiang, Yefeng Bao and Min Wang
Plasma electrolytic boriding (PEB) is a method of combination surface strengthening and surface texturing on metal. In this study, the kinetics and the lubrication friction of borided layers in the plasma electrolytic boriding on the Q235 were investigat...
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Aleksandra Lont, Jacek Górka, Damian Janicki and Krzysztof Matus
The article presents the results of the laser alloying process of a ductile cast iron EN-GJS 350-22 surface with titanium powder in nitrogen atmosphere. The aim of this research was to test the influence of nitrogen atmosphere on the structure and proper...
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Jian Sun and Quantong Yao
Surface mechanical attrition treatment (SMAT) is an effective method to accelerate the nitriding process of metallic materials. In this work, a novel technique named surface nano-alloying (SNA) was developed on the basis of surface mechanical attrition t...
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Artur Wiatrowski, Michal Mazur, Agata Obstarczyk, Damian Wojcieszak, Danuta Kaczmarek, Jerzy Morgiel and Des Gibson
In this paper, a comparison of TiO2 thin films prepared by magnetron sputtering with a continuous and pulsed gas flow was presented. Structural, surface, optical, and mechanical properties of deposited titanium dioxide coatings were analyzed with the use...
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Henry Dempwolf, Matthias Proft, Axel Baumann, Sinah Malz and Olaf Keßler
Titanium-based nitride physical vapour deposition (PVD) coatings, such as titanium nitride (TiN), are state-of-the-art solutions for surface modifications of CoCrMo-based implants for patients who are hypersensitive to metallic ions such as cobalt, chrom...
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Xiaoxing Yan and Wenwen Peng
Urea formaldehyde coated waterborne acrylic resin microcapsules with core-wall ratios of 0.30, 0.45, 0.60, 0.67, and 0.75, and mass fractions of 1.0%, 4.0%, 7.0%, 10.0%, 13.0%, and 16.0% were prepared by in situ polymerization. Their micro morphology was...
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Magda Dziaduszewska, Masaya Shimabukuro, Tomasz Seramak, Andrzej Zielinski and Takao Hanawa
Titania-based films on selective laser melted Ti13Zr13Nb have been formed by micro-arc oxidation (MAO) at different process parameters (voltage, current, processing time) in order to evaluate the impact of MAO process parameters in calcium and phosphate ...
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