Article
Chemistry, Physical
Panagiotis Karmiris-Obratanski, Emmanouil L. Papazoglou, Beata Leszczynska-Madej, Krzysztof Zagorski, Angelos P. Markopoulos
Summary: This paper presents an experimental examination of the Ti-6Al-4V ELI EDM process using a graphite electrode and analyzes its impact on machining performance. The results show that the pulse-on time is a crucial parameter that significantly affects the material removal rate. Statistical data and microscopic images are provided to analyze the material removal efficiency and tool wear rate.
Article
Chemistry, Physical
Andrijana Milinovic, Josip Stojsic, Ivica Kladaric, Bozidar Matijevic
Summary: In this study, the boride layers on C70W2 steel obtained by boronizing at different temperatures and durations were investigated. A new approach based on the change in the volume fraction of the boride phase was used for the characterization of the layers. The results showed that temperature and duration had a significant effect on the thickness of the layers, with temperature having a greater influence. Regression equations were established to predict the volume fraction of the boride phase and the thickness of different parts of the boride layer.
Article
Mechanics
Minghui Yang, Ben Deng, Yu Huang, Fangyu Peng, Xiaowei Tang, Rong Yan
Summary: A comprehensive constitutive model is established for TiBw/TA15 composites, quantifying the strengthening effect and predicting the hardness variation in the machined subsurface, with an explanation derived from the internal mechanism of the constitutive model.
COMPOSITE STRUCTURES
(2023)
Article
Automation & Control Systems
Mateusz Kuklinski, Damian Przestacki, Aneta Bartkowska, Piotr Kieruj, Norbert Radek
Summary: This study compares the effects of conventional and laser-assisted machining on laser-melted Monel 400 alloy. The influence of laser beam scanning velocity on microstructure, microhardness, and depth of melting was examined. The results show that laser-assisted machining can reduce cutting forces, extend tool life, and improve surface roughness.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Renu Kiran Shastri, Chinmaya Prasad Mohanty, Sitaram Dash, Karthick Muthaiah Palaniappan Gopal, A. Raja Annamalai, Chun-Ping Jen
Summary: This paper examines the effects of various association techniques in electrical discharge machining (EDM) and evaluates their impact on performance measures. The study contributes to improving the performance of EDM machining and proposing new solutions.
Article
Materials Science, Multidisciplinary
Derzija Begic-Hajdarevic, Izet Bijelonja
Summary: This paper presents an analysis on the laser beam machining of tungsten alloy, focusing on cutting and drilling processes. Experimental and numerical studies were conducted, and the results showed that the heat-affected zone is larger in the 0.5-mm-thick plate compared to the 1-mm-thick plate under the same drilling conditions.
Article
Materials Science, Multidisciplinary
Farahnaz Haftlang, Alireza Zargaran, Sujung Son, Sunghak Lee, Soon-Jik Hong, Hyoung Seop Kim
Summary: In this study, the tribological performance of V10Cr10Fe45Co30Ni5 high entropy alloy (HEA) was investigated, and its relationship with the subsurface deformed area and the superficial tribo-layer were explored. The results showed that the surface and subsurface structures of the alloy changed with the applied load, leading to enhanced hardness and the formation of a protective tribo-oxide layer.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Coatings & Films
Mourad Keddam, Maria Hudakova, Jana Ptacinova, Roman Moravcik, Peter Gogola, Zuzana Gabalcova, Peter Jurci
Summary: After boronizing treatment of Vanadis 6 steel, the obtained boronized layers had thicknesses ranging from 4 to 133 µm, exhibiting growth following the parabolic growth law. The boronized layers were two-phase (FeB + Fe2B) with the presence of a small amount of chromium boride. The Charpy impact toughness of the steel was reduced by approximately 95% due to the presence of the boronized layers.
SURFACE ENGINEERING
(2021)
Article
Environmental Sciences
Wentao Dong, Jingliang Huang, Chuang Liu, Hongzhong Wang, Guiyou Zhang, Liping Xie, Rongqing Zhang
Summary: Molluscs produce rigid shells to protect their soft bodies, and our study found that different mollusc species share similar structures and compositions in the attachment between soft tissues and shells. This suggests a common evolutionary and functional significance in mollusc evolution.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Sergey N. Grigoriev, Marina A. Volosova, Anna A. Okunkova, Sergey Fedorov, Khaled Hamdy, Pavel A. Podrabinnik
Summary: Research was conducted on the material removal mechanism, submicrostructures, and nanotransformations during electrical discharge machining of X10CrNiTi18-10 and 2024 in a deionized water medium using a brass tool. The observed microstructures and surface roughness parameters provide insights into the nature of electrical wear and nanomodification of the obtained surfaces.
Article
Materials Science, Multidisciplinary
Nikhil Thawari, Chaitanya Gullipalli, Jitendra Kumar Katiyar, T. V. K. Gupta
Summary: This study focuses on the multi-layer laser cladding of high temperature resistance alloys Stellite 6 and Inconel 718 on SS316, investigating the effects of different cladding materials on clad geometry, microstructure evolution, and mechanical properties. The results show significant differences in all aspects, with Inconel 718 outperforming Stellite 6 in terms of clad height, penetration depth, and dilution.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Volodymyr Hutsaylyuk, Mykhailo Student, Volodymyr Posuvailo, Oleksandra Student, Volodymyr Hvozdets'kyi, Pavlo Maruschak, Vadim Zakiev
Summary: This study focused on improving plasma-electrolytic oxidation (PEO) technology of aluminum alloys to increase their abrasive wear resistance. By utilizing thermodynamic calculations, it was found that hydrogen can promote the recovery of aluminum oxides, reducing the interaction between oxygen and aluminum, and slowing down the synthesis of PEO coatings. Through the use of hydrogen peroxide in the electrolyte, the thickness and abrasive wear resistance of the oxide layers were found to increase at higher rates compared to ozone blowing, leading to a significant improvement in the PEO technology.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Characterization & Testing
Tanju Teker, Murat Sari
Summary: In this study, cementation steel was subjected to boronizing process at 950 degrees C for different durations. The microstructural changes on the surface of the samples were analyzed using various techniques, and surface roughness, microhardness, and boride layer thicknesses were measured. The results showed that the boride layers consisted of FeB and Fe2B, and had higher hardness values compared to the substrate material.
Article
Materials Science, Multidisciplinary
Liang Tan, Changfeng Yao, Xiangyu Li, Yi Fan, Minchao Cui
Summary: This study investigates the effects of different machining parameters on the surface integrity of the nickel-based alloy Inconel 718 during face-turning experiments. The results show that a smoother, more uniform surface is obtained when using a ceramic insert. The residual stress and microhardness distributions induced by the carbide and ceramic inserts are similar.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Automation & Control Systems
Diego Fonseca Silva, Pedro Brito
Summary: In this study, the dynamic recrystallization of alloy 316L during friction surfacing was investigated using a CNC machining center. The geometric properties of the coatings were determined as a function of rotation speed, and the strain temperature and Zener-Hollomon parameter were evaluated. The results showed that a rotation speed of 1500 rpm led to the highest Z value, smallest dynamically recrystallized grain size, and more homogeneous grain size distribution. Vickers microhardness was also evaluated to assess the mechanical properties.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
