Article
Chemistry, Physical
Peiran Shi, Hang Yin, Yichen Zhou, Guodong Zhang
Summary: The plasma transferred arc (PTA) deposition of composite Ni-Cr-Mo covering layers provides excellent corrosion and wear resistance, which can improve the service life of ships and address the corrosion and wear issues of mechanized boats. The analysis of the effects of Mo content on the microstructure, hardness, and corrosion resistance of the covering layers reveal that the structure changes and austenite precipitates become granular with increasing Mo content. Furthermore, the corrosion and wear resistance of the covering layers are improved, with the sample containing 5% Mo exhibiting the best performance.
Article
Materials Science, Coatings & Films
Hongmeng Xu, Haihong Huang, Zhifeng Liu
Summary: Remelting the Ni-based overlay coating deposited via plasma transferred arc welding using plasma transferred arc under controlled currents can effectively eliminate defects and improve coating properties. Proper remelting conditions can increase the type and content of hard phases, enhancing microhardness and wear resistance. Excessive currents during remelting may lead to agglomeration and growth of hard phases, negatively impacting coating hardness and wear resistance.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yingyan Yu, Zhiyuan Qu, Jiansheng Zhang, Jie Zhou
Summary: This study proposes a method of surfacing Fe-based alloy layers on WAAM Ni-based material and discusses its effect on the microstructure and wear properties of the material.
Article
Materials Science, Multidisciplinary
Kwang-jin Lee, DaeHan Kim
Summary: Hardfacing layers on mild steel substrates were successfully manufactured using a plasma transferred arc welding (PTAW) process, and the wear resistance was found to be influenced by the morphology and quantity of tungsten carbide powder. Study also investigated the formation of intermetallic compound (IMC) layers and their relationship with wear property, confirming that preferential wear occurs in the binder metal region. Control of PTAW conditions, such as peak temperature and cooling rate, is crucial for obtaining a wear-resistant layer.
Article
Materials Science, Multidisciplinary
Wenhe Wu, Shuixin Ye, Ruidong Wang, Chao Zhang, Yuwen Zhang, Xionggang Lu
Summary: To investigate the influence of process parameters on coating microstructure and wear resistance, Ni60A alloy was deposited on copper surface under various preheating temperatures using plasma cladding. The resulting coatings were composed of a new alloy material formed by the mixture of Ni60A alloy with Cu, and their microstructure and properties were closely associated with the dilution rate. Increasing the preheating temperature significantly raised the dilution rate of the coatings, leading to an increase in copper content and subsequently causing compositional inhomogeneity and deterioration of performance. The average hardness of the coating decreased from 680.3 HV0.1 to 406.6 HV0.1, and the wear resistance reduced by 2.8 times when the preheating temperature increased from 500°C to 800°C. The wear mechanism transitioned from abrasive wear to the combined effect of abrasive wear and adhesive wear. Hence, for optimal wear resistance, it is recommended to maintain a low preheating temperature in practical applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Coatings & Films
Hao-ping Wang, Rui-xue Sun, Meng-qi Zhang, Bin Gou, Ji-liang Mo
Summary: This article explores the feasibility and effectiveness of using surface coatings to improve the wear resistance of the cutter ring. The wear performance of the coating was evaluated using a bespoke impact-sliding device, and the wear mechanism was studied in detail. The results show that the powder composition and preparation process parameters should be reasonably selected according to the impact angle, and the impact-sliding wear experiment can effectively evaluate the impact and sliding wear performance of different coatings. This approach has an important directive function in the promotion and application of cutter ring coatings.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Qingkai Shen, Jiaxiang Xue, Xiaoyan Yu, Zehong Zheng, Ning Ou
Summary: In this study, an innovative triple-wire plasma arc cladding method was used to successfully prepare Cr-Fe-Ni-Ti-x HEA coatings. It was found that increasing the titanium content resulted in a change in the coating structure, an increase in microhardness, and a significant improvement in wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Augustine Nana Sekyi Appiah, Oktawian Bialas, Artur Czuprynski, Marcin Adamiak
Summary: This study investigates a method of surface modification for structural steel using powder plasma transferred arc welding to improve wear resistance. By varying PPTAW process parameters, optimal conditions were selected for further research. Alloying the MMC matrix with chromium was found to increase hardness.
Article
Chemistry, Physical
Long Huang, Bingyuan Li, Bopin Xu, Yicheng Zhou, Mengzhao Li, Chenglin Li, Bing Yang, Chunxu Pan, Guodong Zhang
Summary: High-entropy alloy coatings of CrMnFeCoNi with different ZrC contents were successfully prepared on Q235 steel by plasma transferred arc process. The addition of ZrC had little influence on the main crystal structure and micromorphology of the CrMnFeCoNi HEA coating, but effectively improved its hardness and corrosion resistance.
Article
Materials Science, Multidisciplinary
Linlin Chen, Min Li, Shufeng Wang, Zenglei Guo, Bin Liang, Junxian Xue, Zhongpeng Du, Zhixin Guo
Summary: Ni-Al intermetallic compounds coating was prepared on Q235 steel plate using different powder systems compositions. The microstructure of the coatings changed with the addition of alloying elements. The coatings prepared with NiBSi powder had good corrosion resistance and high hardness, while the coatings fabricated with NiCrBSi powder showed refined grain size, good corrosion resistance, and high hardness.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Review
Materials Science, Multidisciplinary
S. Balaguru, M. Gupta
Summary: Hardfacing is commonly used to increase the service life of structural components, with Ni-base, Co-base, and Fe-base alloys being widely utilized. Ni-base alloys are preferred for their ability to retain hardness at elevated temperatures. Various research works on Ni alloy hardfacings using different processes on different substrates can benefit researchers and industries in the field of hardfacing.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Coatings & Films
T. Zhao, S. Zhang, F. Q. Zhou, H. F. Zhang, C. H. Zhang, J. Chen
Summary: In-situ TiC reinforced titanium matrix composites coating was prepared on the surface of Ti6Al4V using plasma transfer arc welding. The coating exhibited dense structure, no porosity, and good metallurgical bond with the substrate. Different phases formed in the coating contribute to its high microhardness and resistance to wear and corrosion.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Composites
Adeola Oketola, Tamba Jamiru, Adesola T. Adegbola, Olugbenga Ogunbiyi, Azeez L. Rominiyi, Smith Salifu
Summary: By adding ZrO2 additive, the densification and mechanical properties of Ni-Cr-ZrO2 composites can be improved, especially in terms of hardness and elastic modulus. Increasing the ZrO2 content also significantly enhances the wear performance of the composites.
JOURNAL OF COMPOSITE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yingqing Fu, Liyue Li, Xueping Guo, Ming Li, Zhoujian Pan, Haiming Wang, Changhao Liu, Lei Zhao
Summary: In this study, a Fe-Co-based monolayer coating with extremely high saturation magnetization and hardness was successfully deposited on AISI 1010 substrate using PTAW. The coating exhibited a dendrites-eutectics composite structure, with alpha-Fe and Fe2B contributing to the high magnetization and hardness.
Article
Chemistry, Physical
N. Jeyaprakash, G. Prabu, Che-Hua Yang
Summary: In this study, Plasma Transferred Arc (PTA) process was used to preplace ball-milled alloy powders FeCoCrNiAlCuMn on the IN-718 substrate, resulting in an alloyed region with different phases, increased hardness and wear resistance, as well as the formation of oxide layers acting as a lubricant film.
Article
Engineering, Mechanical
S. A. Ataie, M. Soltanieh, R. Naghizadeh, A. Cavaleiro, M. Evaristo, F. Fernandes, F. Ferreira
Summary: The present work investigates the effect of substrate bias voltage on the structural-tribological relations of W-Ti-C-N thin films. Chemical analysis of the coatings is obtained and composite phase structure is revealed. The morphology of the coatings illustrates that defectless surfaces may be achieved. Indentation, scratch, and pin-on-disk tests are applied to study the mechanical behaviors of the films. A model based on the representative volume element is developed to show crack propagation and delamination.
Article
Chemistry, Physical
Andresa Baptista, Gustavo F. Pinto, Vitor F. C. Sousa, Francisco J. G. Silva, Filipe Fernandes
Summary: Microscale abrasion is used to study wear behavior and mechanisms of hard coatings. The study found that the concentration of abrasive particles can affect the surface texture of the ball, which in turn affects the wear modes. Lower particle concentration leads to higher specific wear rate and induces a predominant two-body wear mechanism. Increasing abrasive concentration increases the roughness of the scar and the ball surface.
Editorial Material
Materials Science, Multidisciplinary
Francisco J. G. Silva, Filipe Fernandes, Vitor F. C. Sousa
Article
Materials Science, Multidisciplinary
Gustavo Filipe Pinto, Andresa Baptista, Vitor F. C. Sousa, Francisco J. G. Silva, Manuel Evaristo, Filipe Fernandes
Summary: Abrasive wear is a common type of wear found in machining tools, characterized by the loss of material from the interaction of a surface with hard particles. The resistance to abrasive wear can be evaluated using microscale abrasion equipment. Various parameters, such as ball rotation, sliding distance, abrasive slurry concentration, normal load, and abrasive flow rate, have been studied to control micro-abrasion wear tests. The influence of ball surface texture on abrasive particle dragging and wear modes is still poorly understood.
Article
Materials Science, Multidisciplinary
Mohammadamin Sadeghi, Takeru Omiya, Filipe Fernandes, Luis Vilhena, Amilcar Ramalho, Fabio Ferreira
Summary: Diamond-like carbon (DLC) coatings are used in industries for high durability, wear resistance, and low friction. This study investigated the combined effects of Eu-DLC, Gd-DLC, and pure DLC coatings with an ionic liquid (IL) additive on lubrication performance. The Gd-DLC coating showed superior hardness, adhesion, and friction coefficient when paired with the IL. The findings suggest that the combination of Gd-DLC films with an IL has potential for reducing friction and improving efficiency in moving parts.
Article
Materials Science, Multidisciplinary
Manoj Rajankunte Mahadeshwara, Fatima Rosa, Todor Vuchkov, Luis Vilhena, Amilcar Ramalho, Pooja Sharma, Albano Cavaleiro
Summary: In this study, the steel surface was textured with electrochemical processing (ECP) and post-coated with transition metal dichalcogenides (TMD) using a molybdenum-selenium-carbon (MoSeC) film to improve the surface frictional properties of the material. The block-on-ring experiments under lubricated conditions showed that the MoSeC-coated circular patterns exhibited improvements in frictional properties compared to smooth surfaces.
Article
Materials Science, Multidisciplinary
Raj Kumar Pittala, Priyaranjan Sharma, Gajanan Anne, Sachinkumar Patil, Vinay Varghese, Sudhansu Ranjan Das, Ch Sateesh Kumar, Filipe Fernandes
Summary: Metal foams and alloy foams are novel engineering materials with properties such as high energy absorption, light weight, and high compressive strength. This study discusses the methodology of developing a Ni-Cr alloy foam using a polyurethane foam precursor and coating techniques. The surface morphology, strut thickness, and weight gain after each coating stage were evaluated. The developed foam was also tested for porosity, permeability, compressive strength, and its suitability for filtering applications.
Article
Engineering, Biomedical
Teresa A. Mendes, Luis Vilhena, Jaime Portugal, Joao Carames, Amilcar L. Ramalho, Luis P. Lopes
Summary: The wear of implants with titanium and zirconia abutments was evaluated, and it was found that cyclic loading induced implant wear, but the type of abutment and connection did not significantly influence the amount of surface area lost.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Materials Science, Ceramics
Morteza Hadi, Seyed Mahdi Rafiaei, Filipe Fernandes
Summary: The effect of Mo2C secondary carbide on the oxidation resistance of (Ti0.93W0.07)CN0.3-20%Ni cermet was investigated. Adding Mo2C secondary carbides to (Ti, W)CN cermets is a method for improving mechanical properties but decreases oxidation resistance.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Mechanical
Manuel Evaristo, Filipe Fernandes, Albano Cavaleiro
Summary: The tribological behavior of DLC coatings alloyed with different elements was evaluated. Pure DLC and DLC-W showed the best wear resistance, while DLCSi and DLCSiO demonstrated the lowest friction coefficient. The increase of temperature significantly increased the friction coefficient for DLC and DLC-W coatings, while a slight decrease was noticed for DLC-Ag, DLC-Si, and DLC-SiO coatings.
Article
Chemistry, Physical
Gajanan M. Naik, Priyaranjan Sharma, Gajanan Anne, Raj Kumar Pittala, Rahul Kumar, Gnane Swarnadh Satapathi, Ch Sateesh Kumar, Filipe Fernandes
Summary: This study aims to enhance the mechanical performance and corrosion resistance of Mg AZ80/91 alloys for applications in the aerospace and automotive industries. The application of ECAP and HVOF coatings significantly improves the alloy's properties, making it more suitable for these industries.
Article
Chemistry, Physical
Luis Vilhena, Luis Afonso, Amilcar Ramalho
Summary: This research analyzed seven different types of papers used in everyday life and determined their physical properties through tensile tests and friction tests. By comparing mechanical properties with coefficient of friction, it was concluded that the coefficient of friction is strongly correlated with the mechanical properties.
Article
Materials Science, Multidisciplinary
Bingyang Ma, Haitian Yuan, Zongqian He, Hailong Shang, Yanjie Hou, Hongbo Ju, Filipe Fernandes, Rainer Hippler, Aomar Hadjadj
Summary: TiN-Ni nanostructured composite films with different Ni contents were prepared using the magnetron sputtering method. The addition of Ni disrupted the TiN lattice growth and reduced the grain size. Films with 12.4 at.% Ni formed a nanocomposite structure with nanocrystalline TiN surrounded by amorphous Ni. The hardness and elastic modulus decreased with increasing Ni content, while toughness improved.
Article
Engineering, Mechanical
Shahsharif Shaikh, Takeru Omiya, Albano Cavaleiro, Luis Vilhena, Amilcar Ramalho, Fabio Ferreira
Summary: This research investigates the tribological performance of diamond-like carbon (DLC) coatings doped with rare earth metals and pure DLC lubricated with ionic liquid additives in Polyalphaolefin 8 (PAO8) at different temperatures. The results show that doped DLC coatings with ionic liquid additives exhibit superior tribological performance compared to pure DLC coatings. Temperature influences the performance of the coatings and additives, with the coefficient of friction increasing for pure DLC coatings, while significantly less for doped DLC coatings. These findings contribute valuable insights into the impact of rare earth metal dopants and ionic liquid additives on the tribological performance of DLC coatings under different temperature conditions.
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)
