Article
Engineering, Chemical
Erhan Akman, Mustafa Ozgur Bora, Onur Coban, Belgin Genc Oztoprak
Summary: The achievement of adhesive strength depends on various parameters, including the type and thickness of the adhesive, and appropriate surface preparation. By optimizing the geometrical sizes of laser-induced grooves, the adhesive shear strength can be increased by approximately 180%.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2021)
Article
Chemistry, Analytical
Yarui Wang, Yuqi Chen, Runhua Li, Juan Kang, Jiankui Gao
Summary: The OPC HRR LA-SIBS technique enables convenient and reliable quantitative analysis for both major and minor elements in aluminum alloys, with predicted concentrations in good agreement with certified concentrations ranging from 0.065% to 19.45%.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Materials Science, Multidisciplinary
C. S. Hattori, G. F. C. Almeida, R. L. P. Goncalves, R. G. Santos, R. C. Souza, W. C. da Silva Jr, J. R. C. Cunali Jr, A. A. Couto
Summary: This study aimed to obtain two aluminum alloys by extrusion, evaluating their microstructural characteristics and fatigue behavior. AA7046 exhibited better tensile and fatigue properties compared to AA7108.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Chemical
F. Moroni, F. Musiari, C. Favi
Summary: This study investigates the influence of different surface laser pre-treatments on Single Lap Joints (SLJ) subjected to accelerated ageing, showing that laser pre-treatment can reduce strength loss due to aging in comparison with other reference treatments. The results also demonstrate that the sensitivity of joints to different pre-treatments varies, with laser pre-treatment showing promising results in maintaining mechanical performance.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2021)
Article
Materials Science, Multidisciplinary
Yegor Piskarev, Etienne Desbouis, Vivek Ramachandran, Jiayi Yang, Neil Baugh, Jun Shintake, Michael D. Dickey, Dario Floreano
Summary: This study reports a simple and fast surface treatment approach using CO2 laser engraving to modify the adhesion of pressure-sensitive adhesives (PSAs). The researchers tested multiple laser settings for PSAs and different substrates, and conducted tests on mechanical properties and chemical composition to understand the changes in adhesion and viscoelasticity.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Engineering, Chemical
Wei Tan, Jingxin Na, Guangbin Wang, Qianhui Xu, Hao Shen, Wenlong Mu
Summary: The study revealed that temperature has a significant impact on the quasi-static and fatigue performance of joints. As temperature increases, the failure load and displacement of the joints gradually decrease, leading to a reduction in fatigue performance. The closer the temperature is to the adhesive’s glass transition temperature, the greater the decrease in fatigue performance.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2021)
Article
Chemistry, Physical
Szymon Tofil, Robert Barbucha, Marek Kocik, Rafal Kozera, Mateusz Tanski, Natarajan Arivazhagan, Jianhua Yao, Andrej Zrak
Summary: The article presents a method of increasing the shear strength of adhesive joints for lightweight metals such as aluminum with plastics through laser surface microstructuring, which significantly increases the adhesive strength.
Article
Chemistry, Physical
Elisabetta Di Francia, Ruth Lahoz, Delphine Neff, Victor Rico, Nicolas Nuns, Emma Angelini, Sabrina Grassini
Summary: Laser ablation is an effective method for cleaning Cu-based alloys. A novel characterization method using O-18 isotopes was developed to assess the driving mechanisms of laser-surface interactions. The presence of re-oxidised compounds was detected, with the selectivity of the re-oxidation phenomenon depending on the laser conditions.
APPLIED SURFACE SCIENCE
(2021)
Article
Mechanics
Amir Safari, Mohammadreza Farahani, Pouyan Ghabezi
Summary: This study investigated the effects of different surface preparation processes on the shear strength of single-lap adhesive joints. The results showed that the ultimate lap shear strength varied with the surface roughness obtained from different preparation processes.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2022)
Article
Engineering, Aerospace
Jiafu Zhou, Dianwu Zhou, Huiming LI
Summary: Effective fusion welding joints between Ti and Al are difficult to obtain due to their thermal properties differences and the presence of brittle Ti-Al intermetallic compounds (IMCs). Laser fusion welding experiments were conducted on TC4 titanium and 7075 aluminum alloy, and the temperature field, ductility/brittleness, and chemical potential of elements were calculated. The addition of Nb foil was found to improve the mechanical properties of the weld, with the Ti-Nb-Al IMC layer forming at the interface and reducing brittleness. The joint properties of titanium/aluminum are enhanced with the addition of Nb foil.
CHINESE JOURNAL OF AERONAUTICS
(2023)
Article
Optics
Xin Zou, Lei Liu, Ting Chen, Lei Wu, Ke Chen, Liang Kong, Min Wang
Summary: Adhesive bonding between steel and carbon fiber reinforced plastics (CFRP) is improved by laser surface treatment. Surface roughness, energy, and chemical composition of steel are studied after different laser treatments. Results show that surface properties are closely related to the interfacial bonding strength between steel and adhesives.
OPTICS AND LASER TECHNOLOGY
(2023)
Review
Engineering, Chemical
Jens-David Wacker, Tobias Kloska, Hannah Linne, Julia Decker, Andre Janes, Oliver Huxdorf, Sven Bose
Summary: An adhesive joint for a hybrid wheel has been developed to demonstrate its performance and lightweight potential. The joint combines an adhesive bond with a form-fitted geometry, allowing for an assembling process of the wheel disc in rotational direction. Optimization of the fiber layup in the rim area reduces thermal residual stresses and improves the strength and lightweight potential of the joint by 6% compared to a bolted wheel.
Article
Chemistry, Physical
Sergey N. Grigoriev, Nikita Nikitin, Oleg Yanushevich, Natella Kriheli, Olga Kramar, Roman Khmyrov, Idarmach Idarmachev, Pavel Peretyagin
Summary: Statistical analysis of heat-treated thin-walled samples obtained by selective laser melting revealed that the maximum strain hardening occurs at a temperature of 290 degrees Celsius. Correlation analysis also showed a statistically significant positive relationship between surface roughness and strain.
Article
Materials Science, Multidisciplinary
Mahdi Amne Elahi, Marcus Koch, Peter Plapper
Summary: Different mechanical and laser-based surface treatments have been investigated to develop diverse surface conditions on aluminum, with the aim of achieving superior joint between aluminum and polyamide.
JOURNAL OF LASER APPLICATIONS
(2021)
Article
Chemistry, Physical
Jan Schubnell, Eva-Regine Carl, Ardeshir Sarmast, Manuel Hinterstein, Johannes Preussner, Marco Seifert, Christoph Kaufmann, Peter Russbueldt, Jan Schulte
Summary: Laser shock peening (LSP) is a mechanical surface treatment process that can modify near-surface material properties. Compared to conventional shot peening (SP), LSP allows for more precise adjustment of process parameters and achieves greater penetration depth of compressive residual stresses. However, the high process times of LSP result in high production costs. This study explores the application of ultrafast LSP (U-LSP) using an ultrafast laser source on different materials. The results show that U-LSP significantly reduces process time and can achieve similar compressive residual stresses compared to conventional laser shock peening (C-LSP) in certain cases.
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)