Surface & Coatings Technology
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#1Q. He (McMaster University)H-Index: 1
#2Jose M. DePaiva (McMaster University)H-Index: 1
Last. Stephen C. Veldhuis (McMaster University)H-Index: 37
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Abstract null null In this study, a novel bi-layer AlTiN PVD coating was deposited on a tungsten carbide substrate. The bi-layer coating, with a total thickness of 3.5 μm consists of a 1.0 μm Al60Ti40N top layer and a 2.5 μm Al50Ti50N sublayer. Monolayer Al60Ti40N and Al50Ti50N coatings (each around 3.5 μm) were used as benchmarks. All the studied coatings were deposited by an industrial cathodic arc PVD coater. The ultra-high-speed finish turning of austenitic stainless steel 304 (SS304) was pe...
#1Ke Zhan (USST: University of Shanghai for Science and Technology)H-Index: 14
#2Yalong Zhang (USST: University of Shanghai for Science and Technology)
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Abstract null null Laser quenching is an effective method to improve the surface performance of steel and iron. However, temper softening in overlapping zone often exists in multi-track laser quenching process and results in non-uniform hardness and residual stress distribution in the surface of component. Here, QT-700-2 nodular cast iron (QT-700-2) was performed by laser quenching with the maximum power of 3000 W and subsequent dual shot peening. With optimized laser quenching power of 1200 W a...
#1Dun-Bao Ruan (NTHU: National Tsing Hua University)H-Index: 9
#2Kuei-Shu Chang-Liao (NTHU: National Tsing Hua University)H-Index: 18
Last. E-Ray Hsieh (NCU: National Central University)
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Abstract null null An oxidation or nitridation treatment was performed on the interfacial layer (IL) with optimal oxidation state in order to form an oxygen diffusion barrier for Ge nMOSFET. Through the analysis of X-ray photoelectron spectroscopy and electrical characterization of Ge nMOSFET, the reaction mechanism and physical model were studied in details. The fewer interface traps and lower subthreshold swing can be achieved by forming oxygen diffusion barrier in an optimal IL with remote NH...
#1Sevda Rostami (SUT: Sahand University of Technology)
#2S. Mahdavi (SUT: Sahand University of Technology)H-Index: 12
Last. Ali Mohseni (SUT: Sahand University of Technology)
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Abstract null null Co/TiO2 micro- and nano-composite coatings having different amounts of reinforcing particles were electrochemically deposited on st37 steel sheets, and their characteristics, tribological properties, and corrosion behavior were compared. With a relatively similar hcp structure, the nano-composite coatings had a nodular morphology which was different than the relatively smooth morphology of pure cobalt and micro-composites. The hardest and the most wear-resistant micro/nano-com...
#1Kang Qi (Qingdao University)H-Index: 3
#2Yong Yang (Qingdao University)H-Index: 3
Last. Xiong Li (Qingdao University)H-Index: 1
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Abstract null null Laser cladding layer with high hardness (H) and toughness have been the focus of surface science research because of their remarkable resistance to cracking and wear. This laser cladding experiment is performed in a magnetic field to fabricate alloy cladding layers. This paper presents the research on the magnetostrictive effects of laser cladding with regard to improvements in crack and wear resistance. The microstructural evolution, mechanical properties, lattice constant ch...
#1Tong Zhou (SJTU: Shanghai Jiao Tong University)H-Index: 4
#2Ruoyun Wang (SJTU: Shanghai Jiao Tong University)H-Index: 2
Last. Lei Liu (SJTU: Shanghai Jiao Tong University)H-Index: 25
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#1Wenqi Yang (TJU: Tianjin University)
#2Fuxing Ye (TJU: Tianjin University)H-Index: 15
Last. Fuxing Ye
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Abstract null null The development of YSZ TBCs has been limited by the CMAS corrosion and thermophysical characteristics. The Ytterbium Tantalate (YbTaO4) ceramic was selected in this study to evaluate its potential to replace traditional YSZ. The thermal and mechanical properties of YbTaO4 show great advantages over YSZ, especially the hardness (191.3 ± 7.6 Hv0.3). The CMAS hot corrosion results indicate that the maximum thickness of the reaction layer at 1350 °C after 24 h is ~16.8 μm, which i...
#1Ivana Cvijović-Alagić (University of Belgrade)H-Index: 9
#2S. Laketić (University of Belgrade)H-Index: 1
Last. Marko Rakin (University of Belgrade)H-Index: 17
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Abstract null null In this study, the influence of microstructural refinement induced by the high-pressure torsion (HPT) on the corrosion resistance of the Ti-45Nb (mass%) alloy was investigated. The alloy characteristics before and after the HPT deformation were analyzed by electron backscatter diffraction (EBSD), scanning transmission electron microscopy (STEM), x-ray diffraction (XRD), and Vickers microhardness measurements, while the alloy corrosion behavior in simulated physiological condit...
#1Dayvis Fernández-Valdés (IPN: Instituto Politécnico Nacional)H-Index: 2
Last. Arturo Ocampo-RamirezH-Index: 3
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Abstract null null AISI 316L borided steels under cyclic contact loading were evaluated. Boriding was carried out by two powder-pack processes: the continuous and interrupted processes. Boriding processes were developed at 900 °C for 1 h (continuous process) and 4 h (interrupted process). A monolayer mainly formed by Fe2B was obtained by the interrupted boriding with a thickness of 6.09 ± 0.31 μm and a surface hardness of 22.3 ± 1.4 GPa. In contrast, a FeB-Fe2B bilayer was formed by the continuo...
#1Beatriz Vasconcelos (UC: University of Coimbra)H-Index: 4
#2R. Serra (UC: University of Coimbra)H-Index: 10
Last. Carlos Fonseca (University of Porto)H-Index: 47
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Abstract null null In this paper we present a green method to deposit a low-friction Ni-P film on nitrile butadiene rubber (NBR) for dynamic contacts. NBR's surface functionalization was carried out, where metal bonding carboxylic acid derivatives were created as a consequence of aqueous chlorination. The modified surfaces were thereafter activated with silver nanoparticles (Ag-NBR) or catechol moieties following polydopamine polymerization and reduction (PDA-NBR). Furthermore, relevant physical...
Top fields of study
Analytical chemistry
Composite material
Thin film
Materials science