Article
Materials Science, Multidisciplinary
Chunsheng Cui, Jinhao Nie, Yuxin Li, Qingfeng Guan, Jie Cai, Pengfei Zhang, Jie Wu
Summary: The wear resistance of 304 stainless steel was enhanced by depositing a FeCrAlNbNi alloyed zone (AZ) on its surface using laser surface alloying technology. The AZ showed a dense and fine structure with equiaxed dendrites as the main microstructure. The average microhardness of the AZ was about 2.6 times higher than that of the substrate due to the presence of iron compounds and iron-based solid solutions. The friction and wear performance of the AZ was better than that of the substrate at various temperatures, with the highest abrasion resistance observed at normal temperature. However, at elevated temperatures, the wear resistance initially decreased and then increased, with the formation of an Al2O3 layer at 600 degrees C greatly improving the wear resistance.
Article
Materials Science, Coatings & Films
A. S. Chaus, O. G. Devoino, M. Sahul, L. Vanco, I. Buransky, M. Kusy
Summary: This study describes the evolution of microstructure in 17-4PH stainless steel during laser surface alloying, with a focus on the influence of surface topography and roughness. It was found that the surface topography and roughness played a significant role in the development of microstructure during laser surface alloying. The smooth samples exhibited a dendritic microstructure with a small amount of eutectic, while the rough samples showed a fully eutectic microstructure. This resulted in significantly different microhardness between the two samples, with values of 317.0 +/- 12.7 and 636.7 +/- 18.5 HV0.1 for the smooth and rough samples, respectively. The difference in microstructural features and microhardness was attributed to the degree of steel alloying with boron in the laser-melted zone, which was significantly influenced by the initial roughness of the sample surface. This mechanism can be utilized to improve laser surface alloying of additive manufactured products.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Lingyan Zhang, Kai Xu, Tulu Liang, Jin Shi
Summary: In this paper, surface modification of materials using mechanical alloying and electron beam irradiation is investigated. The results show that the Sn-rich Ni-Sn alloy layer obtained through this method has a higher surface hardness compared to the initial pure nickel layer. The atomic structure of the Sn-doped nickel substrate in the alloy layer is also simulated to understand the improvement mechanism.
Article
Materials Science, Multidisciplinary
C. X. Ren, Q. Wang, J. P. Hou, Z. J. Zhang, Z. F. Zhang
Summary: The study investigates the surface spinning strengthening of 316 stainless steel and TC4 alloy, finding that 316 stainless steel exhibits higher work-hardening capacity before treatment and superior gradient layer properties after treatment compared to TC4 alloy. The research also explores the relationships between different parameters, providing insights for designing and evaluating gradient layers.
MATERIALS CHARACTERIZATION
(2021)
Article
Optics
Shenlizhi Hong, Qunshuang Ma, Gang Liu, Han Yang, Lei Hu, Wei Meng, Hu Xie, Xiaohui Yin
Summary: In this study, Ni60/WC composite coatings were prepared using wide-band laser cladding technique. The effects of adding Nb as a strong carbide forming element on the microstructure and properties of the coatings were investigated. The results showed that the addition of Nb changed the composition and morphology of the strengthening phase, resulting in improved wear resistance of the coating despite a decrease in hardness.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Physical
Eugene Feldshtein, Oleg Devojno, Szymon Wojciechowski, Marharyta Kardapolava, Iryna Kasiakova
Summary: This study aims to comprehensively analyze the changes in the surface layer of gray cast iron under laser strengthening to improve its wear resistance. The research findings indicate that the wear resistance of gray cast iron can be increased by five to ten times by properly selecting the surface energy density.
Article
Materials Science, Coatings & Films
Ngangkham Devarani, Shrikrishna N. Joshi
Summary: This paper reports the successful enhancement of surface hardness, corrosion, and wear resistance of AISI P20 mold steel by electrical discharge-based alloying with titanium (Ti) and aluminium (Al). The alloyed region showed a significant increase in microhardness, wear resistance, and corrosion resistance. The mass loss in the alloyed samples was reduced by 54% after wear testing, while corrosion resistance was enhanced by 47%.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Mustafa Okumus, Feyzullah Kaya
Summary: In this study, AlCoCuNiTi high entropy alloy was synthesized through high-energy ball-milling and sintering methods. The microstructural, thermal, and microhardness properties were investigated. The results showed the formation of intermetallic and solid solution phases, a decrease in crystallite size, an increase in lattice strain and dislocation density with prolonged milling time. As the milling time increased, the particle size decreased, leading to a more homogeneous structure. The addition of Ti and the increase in milling time and sintering temperature contributed to an increase in microhardness.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Engineering, Mechanical
Mustafa Okumus, Berna Bulbul
Summary: The study focused on the characterization of a new graphene oxide (GO) reinforced Al-10Ni/GO metal matrix composite fabricated by mechanical alloying technique. It was found that increasing the ball milling time and sintering temperature improved the microstructural evolutions, wear behaviour, mechanical and thermal properties of the fabricated composites. However, increasing the amount of GO reinforcement in the matrix from 1 wt% to 2 wt% adversely affected the properties of the composite.
Article
Materials Science, Coatings & Films
Bo Zhang, Huaming Wang, Rui Chen, Bei He, Yinggang Cao, Dong Liu
Summary: By utilizing laser surface alloying technology, a supersaturated carbon alloying layer was produced on the surface of 15-5PH stainless steel, resulting in significant improvements in microhardness and wear resistance. The main reasons for this enhancement were carbon supersaturated solid solution strengthening and microstructure refinement strengthening.
SURFACE ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Shenlizhi Hong, Gang Liu, Qunshuang Ma, Tao Zhu, Lei Hu, Wei Meng, Hu Xie, Xiaohui Yin
Summary: In this study, Ni60/WC composite coatings were prepared by wide-band laser cladding technology, and the effects of B addition on the microstructure and properties were investigated. The results showed that the addition of B changed the composition and morphology of the reinforced phase, affecting the friction coefficient and wear resistance of the composite coating. The best comprehensive performance was observed at a B content of 1 wt%.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Physical
Yang Gao, Fuyu Ge, Yan Cui, Xin Zhang, Jian Han, Yangchuan Cai
Summary: In this study, the microstructure and superior properties of AlFeCoCrNi2.1 alloy were investigated. The compression tests revealed the alloy's high yield strength, ultimate fracture toughness, and hardness. The study also explored the microstructural strengthening mechanisms, with a focus on the effects of compression stages and the role of irregular structures and grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
H. Geng, B. Chen, J. Wan, J. Shen, K. Kondoh, J. S. Li
Summary: Many studies have shown that carbon nanotubes (CNTs) can significantly strengthen pure aluminum and this study investigates whether the same strengthening effect can be achieved in a high-strength aluminum alloy. The results showed that while both composites had the same tensile strength, CNTs had a stronger reinforcing effect in pure aluminum than in the aluminum alloy, suggesting the influence of the matrix on the strengthening behavior of CNTs in aluminum matrix composites.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
K. Raja Rao, Razan A. Alshgari, A. Ahmed Awadh Bahajjaj, S. Chakraborty, Sudip K. Sinha
Summary: The use of pre-alloyed powder combined with nano-dispersoids is an effective method for fabricating near-net-shaped components through powder metallurgy. In this study, CoCrCuFeNi-based multicomponent alloys with controlled addition of Y2O3 were synthesized by mechanical alloying and consolidated by vacuum hot pressing. The effect of Y2O3 addition on the microstructural and mechanical characteristics of the sintered CoCrCuFeNi alloy was investigated.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Mechanical
Keli Vanessa Salvador Damin, Alicia Correa Lucena, Bruno Borges Ramos, Aloisio Nelmo Klein, Tatiana Bendo, Jose Daniel Biasoli de Mello, Cristiano Binder
Summary: The present study investigated the addition of molybdenum to a Fe + 0.6% C + 3% SiC self-lubricating composite through plasma treatment and powder mixing methods. The results showed that plasma treatment with an average content of 1.6 wt % Mo in the first 10 μm achieved the best tribological properties, with a significant increase (4500%) in scuffing resistance and a reduction in friction coefficient. Surface enrichment of self-lubricating composites was proven to be a viable, cost-effective, and reliable alternative for improving their tribological properties.
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)