Article
Materials Science, Ceramics
Jianbo Wang, Mengqian Cui, Dechen Wang, Yan Liu, Jize Cai, Zhiqing Gu, Chaoquan Hu
Summary: The new surface super-roughening strategy for hard inorganic films successfully integrated high durability and hydrophobicity, and the combination of experiments and simulations explained the microscopic mechanism of the vertical growth of surface mounds.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Desiree N. Bender, Kaka Zhang, Jiandong Wang, Guojun Liu
Summary: This paper reports the incorporation of fluorinated agents into a polyhedral oligomeric silsesquioxane (POSS) coating to produce hard/flexible omniphobic coatings, and investigates the influence of the type and amount of these agents on the wetting and mechanical properties of the coatings. The study provides guidelines for producing coatings with improved omniphobicity and wear resistance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Tao Li, Xi-Tao Wang, Shou-Qiu Tang, Yuan-Sheng Yang, Jian-Hua Wu, Ji-Xue Zhou
Summary: Rare earth metal Sc has a significant impact on the wear resistance of magnesium alloys, reducing the friction coefficient and weight loss. The addition of Sc refines the grain size and improves the strength and hardness of the alloys, thereby enhancing the wear resistance of magnesium alloys.
Article
Construction & Building Technology
M. Z. Abu Bakar, Y. Majeed, M. A. Rashid, F. Ahmed
Summary: This study conducted LCPC rock abrasivity tests on impellers of different material hardness to explore wear characteristics on quartz and garnet minerals. Results showed a decrease in weight loss and increase in brittle fracture with higher impeller hardness. Quartz exhibited higher weight loss and ABR values due to its angular morphology compared to garnet's rounded grains. Testing with impellers of higher hardness levels resulted in significantly increased ABR values.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Yong Chen, Yu X. Xu, Haoqiang Zhang, Qimin Wang, Tiefeng Wei, Fengge Zhang, Kwang Ho Kim
Summary: The mechanical and tribological properties of AlCrMoN hard coatings with different Mo contents were investigated. The addition of Mo did not reduce the friction coefficient as expected, but it enhanced the wear resistance at 600 degrees C due to the modification of the tribolayer. The incorporation of molybdenum oxides increased the deformation ability of the tribolayer and formed a Mo-N-O interlayer at the interface, promoting the good adherence of the nanocrystalline tribolayer and preventing further wear.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Engineering, Mechanical
M. Naeem, J. C. Diaz-Guillen, Ayesha Khalid, I Guzman-Flores, R. Munoz-Arroyo, Javed Iqbal, R. R. M. Sousa
Summary: In this study, high-temperature plasma nitriding was used to improve the surface hardness and wear resistance of AISI-1045 steel. Post-oxidation treatment was applied to the nitrided samples to investigate its effect. The results showed that the nitrided sample had a white layer, while post-oxidation transformed it into hematite and magnetite phases. The hardness of the nitrided samples significantly increased, although post-oxidation caused a slight decrease. The thickness of the nitrided layer and oxide layer increased with post-oxidation treatment. The nitrided sample exhibited abrasive wear, while the post-oxidized sample showed outstanding wear resistance with an adhesive wear mechanism.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Chemical
A. Maytorena-Sanchez, J. Hernandez-Torres, L. Zamora-Peredo, F. Lopez-Huerta, A. Baez-Rodriguez, L. Garcia-Gonzalez
Summary: This article presents the oxidation tests of titanium Grade 2 at different temperatures and reveals that oxide crystals start to form at 750 degrees C. The growth of the oxide layers is promoted with increasing temperature and the best results in terms of hardness and friction coefficient are obtained at 750 degrees C. The oxidation at high temperatures also leads to an increase in surface roughness.
Article
Chemistry, Physical
Yurong Li, Chao Hou, Lijun Cao, Chao Liu, Shuhua Liang, Faiwei Tang, Xiaoyan Song, Zuoren Nie
Summary: An in-situ reaction strategy was proposed to synthesize a multicomponent nanocrystalline W-Cu based composite co-doped with Cr and WC. The material obtained has a homogeneous distribution of various phases and shows significant improvements in hardness and wear resistance compared to conventional coarse-grained W-Cu composite. This enhancement is attributed to the restricted formation and delamination of the mechanically mixed layer, as well as the increased strain gradient induced by the hard phases on the worn surface.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Liuyong Wang, Peng Song, Haoyue Wu, Wenqin Wang, Bing Tu, Ming Yan, Yulong Li
Summary: The combination of electroplating Ni/WC composite coating and laser cladding was used to modify the surface of TA2 substrate. The composite coating consists of TiNi-WC layer and Ti2Ni layer. The TiNi-WC layer has remarkable nano-hardness.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Danian Wang, Yue Zhao, Xin Ge, Chengchao Zhang, Shuang Han, Zhenan Qiao, Lei Wang, Huiyuan Wang, Chaoquan Hu
Summary: In this study, we successfully obtained super wear-resistant absorbers by designing hard, low-refractive-index lossy materials and constructing an optical cavity. The fabricated absorbers demonstrated high absorptance and excellent wear resistance.
MATERIALS RESEARCH LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Xinsheng Wang, Zhiguo Xing, Junjian Hou, Wenbin He, Kun Liu
Summary: This study prepared four kinds of coatings on 45# steel substrate using Supersonic plasma spraying (SPS) technology. It found an increase in ceramic particles, improved wear resistance and corrosion performance of the coatings, and decreasing hardness of N6WA with increased coating distance while maintaining good wear resistance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Coatings & Films
Bo Zhang, Huaming Wang, Shuquan Zhang, Bei He
Summary: The study investigated the cracking susceptibility, microstructures, and wear resistance of coatings with different dilution rates by altering the processing parameters. It was found that the dilution effect of the eutectoid steel substrate increased with the increase of laser beam power, leading to composition deviation of coatings. Microhardness of the coatings increased with the dilution rate but excessive dilution resulted in severe cracking defects. The optimized cladding coating with a dilution rate of about 48% exhibited improved microhardness and wear performance due to increased carbon content.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Yufeng Qiu, Wenwen Liu, Lianghua Jin, Zongyi Ye, Jie Chen, Yueliang Wang
Summary: The wear resistance of anilox roller has been significantly improved by the picosecond laser texturing technique, which prepares a periodic array of metal-ceramic composite coatings. The nano-hardness of the hexagonal mesh wall is maintained and even slightly increased through the synthesis of W2C, removal of the metallic binder phase Co, and annealing softening of thermal effect. The prepared micro-structures on the surface capture debris and form a stable lubricant film, resulting in remarkable improvements in wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Natalia Makuch, Piotr Dziarski, Michal Kulka, Mourad Keddam
Summary: Plasma paste boriding was used to produce boride layers on Nimonic 80A-alloy, with the thickness and hardness of the layers influenced by temperature and duration. The study found a significant increase in hardness and improved wear resistance of the borided alloy compared to the non-borided alloy.
Article
Materials Science, Multidisciplinary
Lijun Cao, Chao Hou, Fawei Tang, Tielong Han, Xintao Huang, Yurong Li, Gaochao Wu, Chao Liu, Shuhua Liang, Junhua Luan, Zengbao Jiao, Zuoren Nie, Xiaoyan Song
Summary: Nanostructured W-Cu-Cr composites with exceptionally high hardness were fabricated in this study, showing nonmonotonic variation of wear resistance with hardness. The appropriate content of Cr facilitated the formation of a stable protective film, leading to higher microhardness at the worn surface and reduced wear rate. Excessive addition of Cr, however, may deteriorate wear resistance despite higher hardness.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)