Article
Nanoscience & Nanotechnology
M. Vollmer, A. Bauer, M. J. Kriegel, M. Motylenko, T. Niendorf
Summary: A novel approach was introduced to obtain functionally graded properties in an Fe-Mn-Al-Ni shape memory alloy by aging a single crystalline sample in a partially martensitic state. The properties in the austenite aged area showed changed superelastic hysteresis, while the martensite aged area remained almost unchanged. The mean average size of nanometric beta precipitates strongly influenced the transformation temperatures and stresses in different aged areas.
SCRIPTA MATERIALIA
(2021)
Review
Engineering, Multidisciplinary
R. Jojith, Manu Sam, N. Radhika
Summary: This article reviews the tribological performance of functionally graded composites (FGCs) under abrasive and reciprocating test conditions, based on numerous studies conducted over the past three decades. The findings reveal that FGCs exhibit different wear analysis trends under varying process conditions and parameters. A framework is presented for identifying the process parameters and evaluating wear performance through wear modes and mechanisms. Optimizing the process parameters independently can reduce material loss in the tribo-system, catering to specific engineering applications in accordance with industrial demands. Additionally, the challenges encountered during wear analysis are discussed, and their prospects in various scientific and technological fields are addressed.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2022)
Article
Chemistry, Physical
Aashish John, Adil Saeed, Zulfiqar Ahmad Khan
Summary: This study explores the potential use of duty cycle variation to improve the mechanical and surface roughness properties of Ni-Al2O3 nanocoatings through pulse electrodeposition. The nanocomposite coatings with varying duty cycles ranging from 20% to 100% were analyzed using bearing area curves and power spectral densities to assess their areal and surface roughness properties. The results demonstrate that a decrease in duty cycle leads to an enhancement in both aerial and surface roughness properties, attributed to variations in grain size caused by different time intervals during pulse coatings. The increase in grain size with changing duty cycle was confirmed with scanning electron microscopy. Furthermore, an increase in grain size with an increase in duty cycle resulted in a decrease in nanohardness. This research provides a novel method for obtaining Ni-Al2O3 nanocomposite coatings with improved surface roughness and hardness properties for wider industrial applications.
Article
Materials Science, Composites
Sumodh Kumar, M. R. Ramesh, Mrityunjay Doddamani
Summary: In this study, functionally graded nanocomposites (FGNCs) were fabricated using 3D printing, and their hardness, impact strength, and compressive properties were investigated with different weight percentages of functionalized MWCNTs in HDPE. The results show that the mechanical properties improve with an increase in the weight percentage of functionalized MWCNTs, with the highest observed for FGNC-2. The improvement is attributed to the strengthening and stiffening effects of the homogeneous distribution of functionalized MWCNTs in HDPE. FGNC-2 demonstrates the highest mechanical properties and can be used in applications requiring variable stiffness.
COMPOSITES COMMUNICATIONS
(2023)
Article
Engineering, Mechanical
Bassiouny Saleh, Aibin Ma, Reham Fathi, N. Radhika, Bohai Ji, Jinghua Jiang
Summary: This study attempted to produce a gradient composite reinforced with silicon carbide particles using recycled magnesium chips, aiming to evaluate its wear behavior. The findings showed that the use of magnesium chips led to a significant improvement in the distribution and gradient of particles within the matrix, resulting in enhanced wear characteristics. The graded composite with chips exhibited higher hardness and wear resistance compared to the composite without chips and the AZ91D alloy.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Mechanics
M. Avey, N. Fantuzzi, A. H. Sofiyev
Summary: This study determines the fundamental frequencies of laminated double-curved nanocomposite structures by considering transverse shear stresses and rotary inertia. The influences of various factors on the fundamental frequency are examined using numerical methods and analytical expressions.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Sarbjeet Kaushal, Dheeraj Gupta, Hiralal Bhowmick
Summary: Functionally graded clad layers of Ni-WC8Co-based materials with varying compositions of WC8Co were processed using microwave hybrid heating technique to form hard phases and enhance microhardness, resulting in significantly higher wear resistance. The developed functionally graded clad exhibited better tribological performance under dry sliding conditions compared to SS-304 substrate and Ni + 30%WC8Co-based single-layer clad, showing approximately 95% and 29% higher wear resistance respectively.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Ozlem Canpolat, Aykut Canakci, Fatih Erdemir
Summary: The performance of biomedical implants has been the focus of research. Functionally graded materials (FGM) have the potential to improve implant performance by mimicking bone structure. In this study, SS316L/Al2O3 FGM was successfully fabricated using the powder metallurgy technique, and its microstructure, corrosion resistance, and mechanical and bioactivity properties were investigated.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Yongfeng Li, Long Zheng, Mengyu Liu, Zhipeng Qu, Xiaochang Xu, Yaqi Zhang, Mingming Zhang, Hongjiang Han, Zongju Yang
Summary: In this study, Ni-P-Al2O3-PTFE nanocomposite coatings were prepared using a pulsed electrodeposition process to improve the comprehensive performance of the material surface in a complex working environment. The effects of pulsed duty ratio on the microscopic morphology and mechanical properties of the coatings were investigated. The results showed that an appropriate pulse duty ratio could result in composite coatings with excellent surface morphology and improved performance.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Physical
Eszter Bodis, Miklos Jakab, Krisztian Ban, Zoltan Karoly
Summary: We investigated the fabrication of functionally graded Al2O3-CeO2-stabilized-ZrO2 (CTZ) ceramics using spark plasma sintering. The ceramics exhibited gradual changes in composition and porosity along the axial direction. The composition gradient was achieved by layering different starting powders, while the porosity gradient was induced by an asymmetric graphite tool configuration during sintering. The microhardness test showed a significant difference in hardness between the two opposite sides of the ceramics in the ASY samples, without any signs of delamination or cracking.
Article
Chemistry, Multidisciplinary
Vladimir B. Zelentsov, Polina A. Lapina, Boris I. Mitrin
Summary: The paper discusses the wear problem of a functionally graded material strip with consideration of heating caused by friction in sliding contact. By modeling and integral manipulation, stable and unstable solutions are obtained, allowing the determination of the effect of the functional graded inhomogeneity of the coating material on the occurrence of thermoelastic instability of the contact. The study also investigates the impact of abrasive speed, contact stresses, and temperature on the wear of the coating material.
Article
Chemistry, Physical
Lipeng Jiang, Xiufang Cui, Guo Jin, Haoliang Tian, Zhimin Tian, Xuerun Zhang, Simin Wan
Summary: The Ni-Ti-Cu/Cu-Al functionally graded coating was proposed and successfully prepared on Mg-Li alloy, exhibiting excellent performance. The top-layer was unaffected by dilution and substrate evaporation, improving the corrosion and wear resistance of the alloy significantly.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Ceramics
Wei Zhao, Weilun Liu, Jiamin Wu, Qingsong Wei, Chunsheng Ye
Summary: In this study, Al2O3-based ceramic functionally graded materials (FGMs) with various proportions of 316L were fabricated using binder jetting additive manufacturing, and the low-temperature co-sintering toughening mechanism was investigated. The results showed that the addition of 316L effectively improved the toughness of the FGMs.
CERAMICS INTERNATIONAL
(2023)
Article
Crystallography
Shidi Li, Xiangyuan Xue, Jiaxing Chen, Tengxuan Lu, Zhe Zhao, Xin Deng, Zhongliang Lu, Zhongping Wang, Zhangxu Li, Zhi Qu
Summary: Research has shown that coated cutters on WC-Co/Ni-Zr FGC substrates exhibit higher wear resistance and cutting life, with the wear mechanism during cutting mainly being adhesion wear.
Article
Chemistry, Physical
Yan Qi, Wenping Liang, Qiang Miao, Jinwei Yi, Hao Lin, Yangyang Liu, Hairui Ma
Summary: The fabrication of a CrN/Fe gradient coating can effectively moderate the property difference between the ceramic coating and substrate, leading to enhanced hardness, improved elasticity, and reduced cracking and spallation probabilities. The introduction of a nitride-metal transitional structure in the coating also contributes to better wear resistance.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Coatings & Films
A. Rezaeiolum, M. Aliofkhazraei, A. Karimzadeh, A. S. Rouhaghdam, R. Miresmaeili
SURFACE ENGINEERING
(2018)
Article
Chemistry, Physical
H. Bagheri, M. Aliofkhazraei, H. Mojiri Forooshani, A. Sabour Rouhaghdam
APPLIED SURFACE SCIENCE
(2018)
Article
Materials Science, Ceramics
E. Mohammadi, M. Aliofkhazraei, A. Sabour Rouhaghdam
CERAMICS INTERNATIONAL
(2018)
Article
Chemistry, Physical
Saeed Rahemi Ardekani, Alireza Sabour Rouhaghdam, Mojtaba Nazari
CHEMICAL PHYSICS LETTERS
(2018)
Article
Metallurgy & Metallurgical Engineering
Paria Siahpour, Reza Miresmaeili, Alireza Sabour Rouhaghdam
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2018)
Article
Engineering, Manufacturing
H. Elmkhah, F. Mahboubi, A. Abdollah-zadeh, A. R. Sabour Rouhaghdam
JOURNAL OF MANUFACTURING PROCESSES
(2018)
Article
Chemistry, Physical
Gh. Barati Darband, M. Aliofkhazraei, A. Sabour Rouhaghdam, M. A. Kiani
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Analytical
Gh. Barati Darband, M. Aliofkhazraei, A. Sabour Rouhaghdam
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2018)
Article
Metallurgy & Metallurgical Engineering
G. Gholami, B. Saeedi, A. Sabour Rouhaghdam
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES
(2018)
Article
Chemistry, Physical
Gh Barati Darband, M. Aliofkhazraei, A. Sabour Rouhaghdam
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2019)
Review
Materials Science, Multidisciplinary
F. Ghadami, A. Sabour Rouh Aghdam
Article
Chemistry, Physical
Ghasem Barati Darband, Mahmood Aliofkhazraei, Suyeon Hyun, Alireza Sabour Rouhaghdam, Sangaraju Shanmugam
JOURNAL OF POWER SOURCES
(2019)
Review
Chemistry, Analytical
Saeed Rahemi Ardekani, Alireza Sabour Rouh Aghdam, Mojtaba Nazari, Amir Bayat, Elnaz Yazdani, Esmaiel Saievar-Iranizad
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2019)
Article
Materials Science, Multidisciplinary
S. Abbasi, M. Nouri, A. Sabour Rouhaghdam
Article
Engineering, Mechanical
A. Karimzadeh, A. Sabour Rouhaghdam, M. Aliofkhazraei, R. Miresmaeili
TRIBOLOGY INTERNATIONAL
(2020)