Article
Chemistry, Physical
Shujun Zhou, Wei Wu, Yilun Yang, Xiao Huang
Summary: In this study, the long-term residual stress evolution of Au films under different conditions was investigated to increase the residual stress stability while reducing the residual stress level. Results showed that increasing the deposition temperature resulted in a more compact microstructure of Au films with increased grain size and reduced grain-boundary voids. The Au films deposited at higher temperatures exhibited better residual stress stability, maintaining low stress levels during subsequent natural placement and thermal holding. The mechanism was discussed based on the differences in microstructure, and comparisons were made between post-deposition annealing and increased deposition temperature.
Article
Materials Science, Multidisciplinary
Li-ping Wang, Zhong-bo Bai, Wan-chang Sun, Liang-liang Du, Xiao-lin Peng, Yan Xiao, Jie Zhang, Ya-peng Jia, Shuang-ming Du, Hui Cai, Er-yong Liu
Summary: This paper analyzes the evolution of morphology, texture, and microstructure of copper foil during low-temperature annealing. It reveals the annealing twin evolution behavior of ultrathin lithium copper foil and the driving factors behind twin formation and recrystallization. The study also shows that the vacancy concentration decreases with an increase in annealing time, leading to a significant increase in conductivity and changes in mechanical properties such as tensile strength and elongation.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Engineering, Manufacturing
Yong-Cheng Lin, Jiang-Shan Zhu, Jia-Yang Chen, Jun-Quan Wang
Summary: Annealing was found to affect the residual-stress relaxation behavior of 5052H32 aluminum alloy spun heads, with higher annealing temperatures resulting in more obvious relaxation of residual stress. Grain size did not change significantly when the annealing temperature was below 220 degrees C, while broken grains transformed into equiaxed grains at approximately 300 degrees C.
ADVANCES IN MANUFACTURING
(2022)
Article
Chemistry, Physical
Wenting Qiu, Haowen Jiang, Zhu Xiao, Yong Pang, Xiaofei Sheng, Zhou Li
Summary: This study aimed to enhance the dimensional stability of alumina dispersion strengthened copper alloy through creep annealing treatment, which reduced residual stress, increased micro-yield strength, effectively reduced pores, and improved the uniformity of the alloy, ultimately enhancing the dimensional stability of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Coatings & Films
Fangfang Zeng, Lianchang Qiu, Yong Du, Liying Wu, Mingqiang Chu, Shuyan Zhang
Summary: It was found that the maximum hardness of the Ti0.17Al0.83N coating reached 46.5 GPa after annealing in vacuum at 900 degrees C for 1 hour, while the coating grains cracked after annealing in vacuum at 1100 degrees C for 1 hour. The surface morphology of the coating remained basically unchanged after annealing in air at 900 degrees C for 1 hour, but was completely oxidized with the formation of Al2O3 on the surface after annealing at 1000 degrees C.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Weisheng Xu, Jiahao Mo, Jin Zhang, Yong Lian, Pengfei Ji
Summary: The study focused on the effects of different annealing temperatures on the residual stress, microhardness, dislocation density, grain boundary, and grain size of 30SiMn2MoVA high-strength steel tubes. The results showed that the best annealing temperature is 500 degrees C, which resulted in a decrease in microhardness by 5% and residual stress close to 0 MPa on the outer surface. Despite higher annealing temperatures not significantly affecting residual stress relaxation rate, they did result in a significant decrease in grain size and low angle boundary, with a decrease in microhardness by more than 10%.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Chemistry, Multidisciplinary
S. Nootchanat, S. Boonmeewiriya, A. Parnsubsakul, N. Insin, S. Ekgasit, K. Wongravee
Summary: A simple, efficient, and economical method was presented to prepare superhydrophobic gold film embedded on PDMS sheets without surface pretreatment. Systematic investigations revealed that the generated gold film contains uniform spherical gold particles with complex hierarchical structures, which play a crucial role in the superhydrophobic property. The durability of the fabricated gold film was demonstrated by various tests, showing no disorientation in the main structures and their superhydrophobic properties.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Shujun Zhou, Wei Wu, Xiao Huang, Tianmin Shao, Meng Shao
Summary: The effect of pulsed laser irradiation on microstructure and evolution of residual stress for gold film has been studied. The results show that laser irradiation can eliminate defects in the film, making it smoother and more compact, and also increases and stabilizes the residual stress.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Ji Cheng Ding, Hui Cai, Ze Zhang, Haijuan Mei, Jun Zheng, Teng Fei Zhang
Summary: Al-doped tetrahedral amorphous carbon (ta-C) films were prepared and the effect of Al content on film structure and properties was investigated. The results showed that Al content increased as the Al target current increased. Without Al doping, the film had an amorphous structure. With Al doping, Al atoms mainly existed in the carbon tetrahedral interstitial space. At high Al doping content, Al nanoparticles were formed. The addition of Al improved the friction and wear properties of the films.
Article
Instruments & Instrumentation
Adrita Dass, Ashlee Gabourel, Darren Pagan, Atieh Moridi
Summary: The adoption of metal additive manufacturing (AM) has increased significantly, but the fundamental physical phenomena occurring during these processes are still challenging to explain. To address this problem, a custom metal AM system has been constructed to simulate powder fed directed energy deposition and integrated with a synchrotron source for operando studies. These experiments provide valuable data for studying material response to non-equilibrium solidification and intrinsic heat treatment, as well as characterizing changes in lattice spacing.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Materials Science, Multidisciplinary
Hanjun Gao, Xin Li, Bianhong Li, Qiong Wu, Yandong Ma, Xiaojun Jian, Hechuan Song, Shuguang Chen
Summary: Thermal-vibratory stress relief (TVSR) is a novel method with significant advantages in reducing residual stress in Ti6Al4V compared to traditional methods. Through comparative studies on different process parameters and simulations, it is found that TVSR exhibits higher efficiency and rate in stress relief, with the potential for establishing quantitative relationships and analyzing effective parameter regions for stress relief mechanisms.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Wei Tang, Chris M. Fancher, Peeyush Nandwana, Ke An, Andrzej Nycz, Hsin Wang, Rangasayee Kannan, Artem Trofimov, Dunji Yu, Donovan N. Leonard, Luke Meyer, Alex Plotkowski
Summary: Recent research has found that low transformation temperature (LTT) martensite steel can be used in wire arc additive manufacturing (WAAM) to produce printed walls with low tensile or compressive residual stresses. These residual stresses contribute to improved product properties. However, the thermal and mechanical properties of WAAM printed LTT martensite steel walls are not well understood.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Qiang Li, Cheng Chen, Manzhang Xu, Yingnan Wang, Xuewen Wang, Zhiyong Zhang, Wu Zhao, Johan Stiens
Summary: The study demonstrated that the crystal structure of SiCN thin films significantly influences their blue-violet emission intensity, and annealing process can optimize the photoluminescence performance of the films. Characterization results using XRD and PL spectra showed that, under annealing at 900 degrees Celsius, SiCN samples exhibited the best crystallinity and blue-violet emission intensity.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Junya Tanaka, Kazuhisa Sato, Keiji Yashiro, Tatsuya Kawada, Toshiyuki Hashida
Summary: The microstructure of anodes significantly affects their deformation, with different deformation mechanisms classified based on analysis. Numerical analysis demonstrates that larger anode deformation leads to higher cell stress, potentially impacting mechanical reliability of cells. Selecting optimal anode composition can prevent cell stress change due to anode deformation. The YSZ-Ni content diagram provides fundamental knowledge for designing optimal microstructure in anodes of SOFCs.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Ziyao Zhao, Namin Xiao, Zhihao Zhang, Zhilei Wang
Summary: A deliberate pre-annealing followed by solution-aging treatment was proposed to improve the stress relaxation stability of a heat-resistant aluminum alloy. The peak effect on stress relaxation stability was found at a pre-annealing temperature of 325℃, which was attributed to a good balance of recrystallization and precipitation. This heat treatment method provides a route for developing high-performance heat-resistant aluminum alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
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)