Article
Chemistry, Physical
Konrad Skowron, Miroslaw Wrobel, Michal Mosialek, Lea Le Joncour, Ewa Dryzek
Summary: The study revealed that the microstructural changes in grade 2 titanium induced by SMAT mainly involve lattice defects introduction and reduced dislocation density. Analysis using positron annihilation lifetime spectroscopy showed the presence of vacancy clusters and positrons trapped at dislocations in the titanium alloy. Electrochemical impedance spectroscopy demonstrated the positive effect of SMAT on the corrosion resistance of titanium even after removal of the original oxide layer.
Article
Materials Science, Multidisciplinary
Yi-Feng Li, Cheng Chen, J. Ranabhat, Yi-Fu Shen
Summary: This study proposed a method of achieving surface nanocrystallization on Ti-6Al-4V surface through surface mechanical attrition treatment (SMAT) using a high-energy planetary ball milling method. Microstructure characteristics were studied using different methods, and successful surface nanocrystallization was achieved on the Ti-6Al-4V substrate. The process of refinement was summarized into four steps, with the continuous beta phase playing a significant role in optimizing grain orientation and accelerating the further refinement of alpha grains. The results of microhardness, friction coefficient, and wear mass loss tests of SMAT samples indicated a significant enhancement in the mechanical behaviors of the substrate.
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
Chemistry, Physical
M. R. Ebrahim, Ahmad M. Labeeb, Inas Battisha
Summary: Surface mechanical alloying with Si powder on Al can create surface composites with improved dielectric properties compared to coarse-grained and annealed Al composites. The composite containing Al-Si solid solution exhibits frequency-dependent behavior for dielectric constant, dielectric loss, and capacitance in a voltage range of 0.1 to 0.5 V at room temperature. Increasing Si content in the surface composite leads to an increase in dielectric constant, tan delta, and capacitance due to the formation of solid solutions between Al and Si. The severe plastic deformed microstructure of the Al electrode plays an important role in controlling the dielectric properties of the Al surface containing Al-Si composite. © 2023 Elsevier B.V. All rights reserved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Shan Cecilia Cao, Xiaochun Zhang, Yuan Yuan, Pengyau Wang, Lei Zhang, Na Liu, Yi Liu, Jian Lu
Summary: Surface nano-crystallization techniques have been developed to optimize materials' structure and mechanical behavior. A constitutive model incorporating grain refinement hardening is presented to simulate the technique, with precise predictability of grain size evolution during plastic deformation. This model has the potential to be a promising tool for studying the dynamic evolution of microstructures under plastic deformation.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Cong Li, Xingfu Li, Zhengrong Fu, Hongjiang Pan, Yulan Gong, Xinkun Zhu
Summary: The Surface Mechanical Attrition Treatment (SMAT) method is widely recognized for achieving the desired combination of strength and ductility in metals and alloys, overcoming the trade-off between these two mechanical properties. This overview presents the principle and process parameters of SMAT, and discusses the strengthening mechanisms using various theories. It also covers methods to obtain excellent mechanical properties and displays the latest progress in the design of gradient structure (GS) materials prepared by SMAT.
MATERIALS TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
Pengbo Wei, Peng Hua, Minglu Xia, Kai Yan, Hongyang Lin, Shenghui Yi, Jian Lu, Fuzeng Ren, Qingping Sun
Summary: By applying pre-strain warm surface mechanical attrition treatment, the bending fatigue life of NiTi plates has been improved. The treatment resulted in the formation of amorphous and grain size gradient layers, as well as the generation of compressive residual stress on the surface of the plates. These characteristics provide higher resistance to fatigue crack nucleation and growth, significantly enhancing the fatigue life of the plates.
Article
Nanoscience & Nanotechnology
Pierre Maurel, Laurent Weiss, Philippe Bocher, Thierry Grosdidier
Summary: SMAT treatment at cryogenic temperature can improve the fatigue resistance of 5553 beta-metastable Ti alloy by generating compressive residual stresses, reducing roughness, deepening martensite formation, and increasing the size of kink bands. Conversely, SMAT treatment at room temperature does not provide any improvement in fatigue performance, possibly due to the appearance of subsurface crystallographic defects caused by the larger grain size.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Yanli An, Huayun Du, Jianwen Jia, Shuaijun Fan, Lifeng Hou, Huan Wei, Xiaoda Liu, Qian Wang, Yan Zhou, Yinghui Wei
Summary: This study successfully fabricated a homogeneous and continuous Fe-Ni alloy coating on a pure iron plate by modifying the coating process. The results showed that SMAT could enhance the thickness of the Fe-Ni interface layer, and the sintering temperature significantly affected the performance of the coating.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Oncology
Nan-Jue Cao, Yu-He Zhu, Fei Gao, Chen Liang, Zhen-Bo Wang, Yue Zhang, Chun-Ping Hao, Wei Wang
Summary: The study found that GNS Ti fabricated by SMAT positively influenced the adhesion, proliferation, and differentiation of BMSCs, and demonstrated good osseointegration in vivo experiments. Therefore, gradient nanostructured Ti shows promise as a material for dental implant applications.
ANNALS OF TRANSLATIONAL MEDICINE
(2021)
Article
Chemistry, Physical
Xingfu Li, Masashi Nakatani, Jingran Yang, Jinxu Zhang, Bhupendra Sharma, Hongjiang Pan, Kei Ameyama, Junqi Fang, Xinkun Zhu
Summary: This study investigated the influence of processing parameters on GS Cu-Al alloys with different stacking fault energies (SFEs). Results showed that the 6 mJ/m(2) specimen processed for 15 minutes exhibited superior strength and ductility, with a significant hetero-deformation induced stress from the accumulation of geometrically necessary dislocations (GNDs). Microstructure observations revealed deformation twins in the gradient layer of the 6 mJ/m(2) specimens.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Vikesh Kumar, Manoj D. Joshi, Catalin Pruncu, Indrasen Singh, Santosh S. Hosmani
Summary: This study explores the impact of SMAT on microstructure and tribological behavior of AISI 316L steel samples manufactured using SLM. SMAT can reduce surface roughness and eliminate internal porosity, increase hardness and wear resistance of SLM steel.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Nanoscience & Nanotechnology
Clement Dureau, Mandana Arzaghi, Roxane Massion, Yves Nadot, Thierry Grosdidier
Summary: The effect of gradient microstructure generated by ultrasonic surface mechanical attrition treatment (SMAT) on the fatigue performance of austenitic stainless steel was evaluated by comparing two load ratios. Different behaviors were observed under different load ratios, with self-heating and sub-surface martensitic transformation occurring under fully reversed tension-compression loading but not under tension-tension loading. The fatigue crack initiation sites and propagation were also found to be modified under different loading conditions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Swarnima Singh, Krishna Kant Pandey, Vamsi Krishna Balla, Mitun Das, Anup Kumar Keshri
Summary: The study found that SMAT treatment can significantly reduce the corrosion rate of Ti-6Al-4V alloy and improve its wear resistance and cell adhesion properties. This effect is attributed to the formation of a TiO2 passive film due to nanocrystallization.
Article
Automation & Control Systems
Carlos Vinicius Lemes, Anselmo Eduardo Diniz, Victor Rossi Saciotto
Summary: The increasing use of titanium alloys in implants manufacture is due to their excellent biocompatibility, low density, high mechanical properties, and corrosion resistance. However, titanium is classified as a difficult-to-machine material. This study compared the useful life of uncoated inserts with three types of coating (TiAlN, AlCrN, TiN + TiCN) on carbide tools. The results showed that the tool with the TiN + TiCN multilayer coating obtained the longest tool life, even though it did not have the best properties among the tested coatings.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Laurent Weiss, Abdel Tazibt, Michel Aillerie, Albert Tidu
MATERIALS RESEARCH EXPRESS
(2018)
Article
Chemistry, Physical
L. Weiss, A. Tazibt, A. Tidu, M. Aillerie
JOURNAL OF CHEMICAL PHYSICS
(2012)
Article
Metallurgy & Metallurgical Engineering
Laurent Weiss, J. Zollinger, P. Sallamand, E. Cicala, A. Mathieu, E. Fleury
WELDING IN THE WORLD
(2019)
Article
Materials Science, Multidisciplinary
L. Weiss, M. Aillerie, A. Tazibt, A. Tidu
MATERIALS RESEARCH EXPRESS
(2014)
Article
Engineering, Industrial
Catherine Schneider-Maunoury, Laurent Weiss, Olivier Perroud, David Joguet, Didier Boisselier, Pascal Laheurte
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2019)
Article
Engineering, Manufacturing
Amelie Thiriet, Catherine Schneider-Maunoury, Pascal Laheurte, Didier Boisselier, Laurent Weiss
ADDITIVE MANUFACTURING
(2019)
Correction
Engineering, Mechanical
Pierre Maurel, Laurent Weiss, Philippe Bocher, Eric Fleury, Thierry Grosdidier
Article
Chemistry, Physical
Meriem Ben Haj Slama, Nabila Maloufi, Julien Guyon, Slim Bahi, Laurent Weiss, Antoine Guitton
Article
Materials Science, Multidisciplinary
Laurent Weiss, Yael Nessler, Marc Novelli, Pascal Laheurte, Thierry Grosdidier
Article
Nanoscience & Nanotechnology
Pierre Maurel, Laurent Weiss, Philippe Bocher, Thierry Grosdidier
Summary: SMAT treatment at cryogenic temperature can improve the fatigue resistance of 5553 beta-metastable Ti alloy by generating compressive residual stresses, reducing roughness, deepening martensite formation, and increasing the size of kink bands. Conversely, SMAT treatment at room temperature does not provide any improvement in fatigue performance, possibly due to the appearance of subsurface crystallographic defects caused by the larger grain size.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
C. Schneider-Maunoury, A. Albayda, O. Bartier, L. Weiss, G. Mauvoisin, X. Hernot, P. Laheurte
MATERIALS TODAY COMMUNICATIONS
(2020)
Article
Engineering, Mechanical
Pierre Maurel, Laurent Weiss, Thierry Grosdidier, Philippe Bocher
INTERNATIONAL JOURNAL OF FATIGUE
(2020)
Article
Engineering, Manufacturing
Catherine Schneider-Maunoury, Laurent Weiss, Philippe Acquier, Didier Boisselier, Pascal Laheurte
ADDITIVE MANUFACTURING
(2017)
Article
Engineering, Mechanical
Yankui Song, Ke Xiao, Guo Xiang
Summary: The novelty of this study lies in constructing an Entropy-based wear and fluid-solid-thermal (FST) coupled model for journal bearings, and revealing the transient interaction behavior between wear evolution and FST evolution during repeated starting and stopping. The wear rate is measured experimentally, and the contact temperature, friction coefficient and normal contact force are obtained from the validated FST model. Wear tests and numerical calculations are conducted to validate the predicted wear rate and investigate the time-varying wear and FST evolution of journal bearings.
Article
Engineering, Mechanical
Xin-long Liu, Xin Guan, Yuan Zhong, Qian Xiao, Yong Cao, Wu-lue Zhang, Song Zhang, Yi-ting Zheng, Ming-sheng Gao, Dao-yun Chen, Wen-bin Yang
Summary: Gaps in the conductor rail joints of intercity trains have an impact on current transmission and the wear of carbon skateboards. These gaps decrease the coefficient of friction, increase electrical contact resistance, and affect the wear rate of carbon skateboards.
Article
Engineering, Mechanical
Yuhang Wu, Conglin Dong, Xiuqin Bai, Chengqing Yuan
Summary: The study developed a new composite material by incorporating hexagonal boron nitride (h-BN) particles into a thermoplastic polyurethane (TPU) matrix, which exhibited excellent self-lubricating properties and reduced frictional excitation forces. The addition of h-BN particles effectively reduced the coefficient of friction, decreased fluctuation amplitude, enhanced wear resistance, and attenuated vibration behaviors.
Article
Engineering, Mechanical
Tiancheng Ouyang, Xiuyang Sun, Wentao Tang, Yinxuan Li, Zhi Qun Tian, Yanzhou Li
Summary: By adding nitrogen-doped graphene and C60 nanoparticles to the lubricant, a highly efficient nano-lubricant with vibration and noise reduction properties is synthesized.
Article
Engineering, Mechanical
Xin Zhuo, Jun Cao, Haibo Huang, Li Liu, Xinkun Suo, Peiqing Ye, Zeshan Abbas
Summary: A polymer coating prepared by liquid spraying technology on the surface of 20CrMo steel demonstrates good tribological and anti-cavitation erosive properties. It can effectively replace CuPb24Sn copper alloy in valve plates for pumps under different lubrication conditions. The coating exhibits adhesive wear and reduces frictional loss, and mainly shows abrasive wear under complex working conditions. Its lipophilicity, high hardness to elastic modulus ratio, and corrosion resistance are the main influencing factors for its performance.
Article
Engineering, Mechanical
Md. Aminul Islam, Jiaren (Jimmy) Jiang, Yongsong Xie
Summary: Erosion-corrosion is a major factor in material loss and reduced useful life of hydro-transport equipment. This study evaluates the erosion-corrosion characteristics of different materials and finds that matrix wear affects the degradation of carbides. Sufficient wear and corrosion resistance in the surrounding matrix are important for good erosion-corrosion resistance.
Article
Engineering, Mechanical
Andre Dubois, Oussama Filali, Laurent Dubar
Summary: This study investigates the effect of surface roughness, contact pressure, and lubrication on the onset of galling in aluminum 6082-T6 using a pin-on-plate tribometer. The experimental results show that the roughness and lubricants play a significant role in preventing galling.
Article
Engineering, Mechanical
Jizhan Wu, Peitang Wei, Guoqiang Liu, Difa Chen, Xiuhua Zhang, Taimin Chen, Huaiju Liu
Summary: This study conducted a comprehensive evaluation of the DLC coating treatment on the loading capacity of gears and characterized the surface features and fatigue performance. The results demonstrate that DLC coating significantly improves the hardness and surface residual compressive stress of the gears, as well as enhances their contact fatigue performance.
Article
Engineering, Mechanical
Yangping Liu, Hwaran Lee, Annsley Mace, Jeremy L. Gilbert
Summary: An AFM-based single asperity tribology method was used to investigate the wear performance of carbides and base metal matrix in high carbon CoCrMo alloy. The wear behavior of the two types of carbides was stress-dependent and influenced by chemical composition. Cr-rich carbides exhibited higher wear resistance compared to Mo-rich carbides.
Article
Engineering, Mechanical
Zdenek Riha, Michal Zelenak, Akash Nag, Jakub Poloprudsky, Tomas Kruml, Sergej Hloch
Summary: This study investigates the erosion performances of a high-speed modulated jet (MWJ) and continuous water jet (CWJ). By comparing different nozzles and water jet powers, the effects of modulated and continuous jets on aluminum alloy were studied. The results show that under certain conditions, modulated jet can create deeper and sharper grooves while reducing the impact of lateral flow.
Article
Engineering, Mechanical
Chunyu Yu, Weipu Li, Yang Guo, Xianbin Sun, Fanli Hong, Ning Sun, Qinghai Zhang
Summary: This study explores the relationship between the wear rate of train brake pads and its features, and proposes a method for predicting the wear rate suitable for small sample data. Grey relational analysis and Pearson correlation analysis are used to determine the preferred features that affect the wear rate, and a BOA-BP model is established for prediction. The results show that BOA-BP exhibits better advantages in prediction with small samples.
Article
Engineering, Mechanical
Shan Yin, Xin Zhao, Shuangchao Huang, Zefeng Wen, Xuesong Jin
Summary: This study simulated the rolling contact of a driving wheelset over tangent and curved tracks at a speed up to 500 km/h using an explicit finite element approach to derive creep curves. The comparison between quasi-steady curves and transient curves in the presence of rail corrugation helped to identify cases where traditional theories are inapplicable and where transient effects must be considered. Additionally, the study further analyzed the influence of middle/high-frequency vibrations in the presence of rail corrugation.
Article
Engineering, Mechanical
Jiyao Zhang, Yuanlie Yu, Junlei Tang, Yingying Wang, Honggang Sun, Kaikai Song, Jianhong Gong, Pingping Liu, Xiaoming Liu, Lina Hu, Parthiban Ramasamy, Juergen Eckert
Summary: The influence of high-carbon addition on the microstructure, hardness, and wear behavior of CoCrNi alloy was investigated. It was found that the addition of carbon resulted in the formation of carbide particles, enhancing the hardness and improving the wear resistance. Fracture and detachment of hard carbides during friction introduced additional abrasive particles, transitioning the wear mechanism from adhesive-dominated to abrasive-dominated.
Article
Engineering, Mechanical
Yanfei Liu, Shengtao Yu, Ruize Zhang, Xiangyu Ge, Wenzhong Wang
Summary: This study reports the tribological behavior of nanodiamond plate (NDPL) as a nanoadditive for the first time and compares it with nanodiamond particles (NDPA). The results show that NDPL provides better lubrication performance at higher concentrations, and the sliding between NDPLs and the structural transformation from sp3 to sp2 carbon play a crucial role in lubrication and wear resistance.
