Article
Multidisciplinary Sciences
Zhongxia Shang, Tianyi Sun, Jie Ding, Nicholas A. Richter, Nathan M. Heckman, Benjamin C. White, Brad L. Boyce, Khalid Hattar, Haiyan Wang, Xinghang Zhang
Summary: Nanostructured metallic materials with abundant high-angle grain boundaries demonstrate high strength and good radiation resistance. However, the nanoscale grains also impair the tensile ductility. A gradient nanostructured ferritic steel is shown to simultaneously improve yield strength by 36% and uniform elongation by 50% compared to a homogeneously structured counterpart. In-situ tension studies combined with electron backscattered diffraction analyses reveal intricate coordinated deformation mechanisms in the gradient structures. The plastic strain sustained by the outermost nanolaminate grains through a significant deformation mechanism involving prominent grain reorientation contributes to the delay of fracture onset, altering the rupture mode in the post-necking regime. This discovery emphasizes the inherent plasticity of nanolaminate grains and their importance in the simultaneous improvement of strength and tensile ductility in structural metallic materials.
Article
Chemistry, Multidisciplinary
Aiying Chen, Chen Wang, Jungan Jiang, Haihui Ruan, Jian Lu
Summary: This study investigates the preparation of gradient structured stainless steels, analyzing the relationship between microstructure characteristics and mechanical properties. It is found that surface mechanical attrition treatment with different impacting velocities can produce stainless steels that are simultaneously stiff, strong, and ductile.
Article
Engineering, Mechanical
G. S. Dong, B. Gao, Z. B. Wang
Summary: A 700 mu m-thick gradient nanostructured surface layer with enhanced hardness and compressive residual stress was produced on a rare earth addition bearing steel by surface mechanical rolling treatment. The fatigue properties of the steel were significantly improved due to the transfer of crack initiation site to a deeper region in the surface layer, and the formation of a thick gradient nanostructured surface layer with enhanced hardness and compressive residual stress.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Chemistry, Multidisciplinary
Yunbo Lei, Jiuling Xu, Zhenbo Wang
Summary: A gradient nanostructured (GNS) surface layer with a controllable martensite fraction has been successfully synthesized on 316L austenitic stainless steel by controlling the temperature. Fatigue experiments showed significantly enhanced fatigue properties of GNS samples at high strain amplitudes, especially in the presence of a dual-phase surface layer. The GNS surface layer enhances strength-ductility synergy and suppresses surface fatigue defects during fatigue, while the dual-phase structure promotes martensite and stacking faults, further enhancing fatigue properties at high strain amplitudes.
Article
Materials Science, Multidisciplinary
Kritika Singh, Sudharm Rathore, Aparna Singh
Summary: Nanostructured bainitic steels exhibit high strength, ductility, fracture toughness, and fatigue life, making them suitable for structures under rolling and/or sliding fatigue, but they require high wear resistance; in sliding fatigue tests, steel austempered at lower temperature demonstrates the highest wear resistance, with the formation of two distinct layers.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Yanyun Zhao, Mengtian Liang, Shaojun Liu, Weihua Zhang
Summary: This study found that a gradient nanostructured surface layer can significantly enhance the fatigue life of RAFM steel by suppressing surface crack initiation through surface strengthening and strain delocalization. Additionally, the deformation compatibility between GNS and coarse-grained boundaries plays a crucial role in enhancing the fatigue properties of RAFM steel.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Sumit Ghosh, Nitish Bibhanshu, Satyam Suwas, Kaushik Chatterjee
Summary: Surface severe plastic deformation (S2PD) techniques like surface mechanical attrition treatment (SMAT) are used to induce a nanostructured surface layer in additively manufactured metallic parts, improving the material performance. By controlling the microstructural evolution mechanisms, a uniform nanostructure is achieved in metal materials, enhancing strength and ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Coatings & Films
Minrui Ran, Ci Zhang, Lei Wen, Hongyu Zhou, Wenyue Zheng
Summary: Surface mechanical attrition treatment (SMAT) can effectively enhance the corrosion resistance of 316L stainless steel in short-term testing by forming a passive film and a nanostructured layer. However, long-term exposure to a corrosive medium may lead to deterioration of the corrosion properties due to micro-strain build-up and the presence of defects in the surface layer.
SURFACE ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Sumit Ghosh, Nitish Bibhanshu, Satyam Suwas, Kaushik Chatterjee
Summary: The fatigue life of additively manufactured 316L stainless steel can be significantly improved through surface mechanical attrition treatment (SMAT). SMAT induces surface nano-crystallization and increases the resistance to fatigue crack initiation and propagation. After SMAT, the crack initiation site moves from the surface to the sub-surface layer.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Haitao Gao, Guiqiang He, Qi Li, Yangen Li, Wei Hu, Shaojie Zhou, Fengmei Liu, Jianglong Yi, Yupeng Zhang, Zhihong Cai, Shigenobu Ogata, Lijie Qiao, Lei Gao
Summary: This paper proposes a surface mechanical attrition treatment (SMAT) strategy to overcome the sluggish diffusion effect of high entropy alloy (HEA) and enable diffusion bonding at a lower temperature. EDS results show that SMAT significantly increases the diffusion distance of Fe atoms by forming more grain boundaries. Molecular dynamics simulations demonstrate that grain boundaries serve as fast diffusion channels, enabling higher apparent diffusivity in the polycrystalline model compared to the single-crystalline model. This study provides a feasible avenue for the application of diffusion bonding in HEAs, expanding their potential fields of application.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Yalong Zhang, Jiakang Wang, Luji Wu, Zhen Wang, Le Liu, Vincent Ji, Shengguan Qu
Summary: The carburized treatment combined with shot peening was used to enhance the fatigue behavior of aeronautic gear steel. The study systematically analyzed the surface integrity and fatigue behavior after carburizing and combined treatment. The results showed that the combined treatment increased surface roughness, microhardness, and residual compressive stress, while reducing the average size of ultra-fine grains. The fatigue limit of the samples treated by combined treatment was increased from 720 MPa to 890 MPa compared to carburized samples. Additionally, higher shot peening jet pressure did not necessarily result in better fatigue limit. Residual compressive stress was identified as an important factor influencing fatigue crack propagation mode.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Materials Science, Biomaterials
Sumit Ghosh, Sushma Indrakumar, Santanu Ghosh, Vasanth Gopal, Sagar Nilawar, Geetha Manivasagam, Jayanth S. Kesave, Satyam Suwas, Kaushik Chatterjee
Summary: This study investigates the effects of surface mechanical attrition treatment (SMAT) on 316L stainless steel implants fabricated by selective laser melting (SLM). The results show that SMAT can improve the corrosion resistance, wear resistance, and biological performance of the implants in in vitro and in vivo environments.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Physical
Furqan Ahmed, Muhammad Zain-ul-Abdein, Iftikhar Ahmed Channa, Muhammad Kamran Yaseen, Sadaf Jamal Gilani, Muhammad Atif Makhdoom, Muhammad Mansoor, Usman Shahzad, May Nasser bin Jumah
Summary: Ultrasonic surface mechanical attrition treatment (SMAT) can refine the grain size of titanium samples, leading to significantly improved mechanical properties such as hardness, tensile strength, surface energy, and biocompatibility.
Article
Engineering, Mechanical
Yue Zhang, Xianggang Sang, Guangtao Xu, Gang Wang, Minghao Zhao
Summary: A gradient modified layer can be produced on the high-strength steel surface by carburizing heat treatment. Increasing the depth of the surface-modified layer leads to a decrease in yield strength and kernel average misorientation value, as well as an increase in equivalent grain size and the number of large-angle boundaries. Deformation occurs inside the martensitic packet, while the large-angle boundaries hinder the propagation of the fatigue crack.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Chemistry, Multidisciplinary
A. Silvia Gonzalez, Angela Riego, Victor Vega, Javier Garcia, Serena Galie, Ignacio Gutierrez del Rio, Maria del Valle Martinez de Yuso, Claudio Jesus Villar, Felipe Lombo, Victor Manuel De la Prida
Summary: The study demonstrated the performance of antimicrobial coatings on 316L stainless steel pipelines, fabricated using electrochemical techniques and surface modification processes. The incorporation of additional coatings with antimicrobial properties on a nanostructured substrate showed highly efficient antimicrobial features, particularly with an association of TiO2 layer and Ag nanoparticle coatings.
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)