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INFLUENCE OF NITROGEN FLOW RATE ON FRICTION COEFFICIENT AND SURFACE ROUGHNESS OF TiN COATINGS DEPOSITED ON TOOL STEEL USING ARC METHOD
HAMZAH, ESAH; OURDJINI, ALI; ALI, MUBARAK; AKHTER, PARVEZ; … - In: Surface Review and Letters (SRL) 14 (2007) 05, pp. 1007-1013
In the present study, the effect of various N2 gas flow rates on friction coefficient and surface roughness of TiN …
Persistent link: https://www.econbiz.de/10005050560
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DEPOSITION AND CHARACTERIZATION OF TiN-COATED STEELS AT VARIOUS N2 GAS FLOW RATES WITH CONSTANT ETCHING BY USING CAPVD TECHNIQUE
ALI, MUBARAK; HAMZAH, ESAH BINTI; TOFF, MOHD RADZI HJ. MOHD - In: Surface Review and Letters (SRL) 14 (2007) 01, pp. 93-100
-Vickers hardness of TiN-coated tool showed about 564% times increase in hardness than the uncoated one. Scratch tester was used to … study the critical loads for the coating and the excellent adhesion achievable, of say 200 sccm, was demonstrated, with …
Persistent link: https://www.econbiz.de/10004977501
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MACRODROPLET REDUCTION AND GROWTH MECHANISMS IN CATHODIC ARC PHYSICAL VAPOR DEPOSITION OF TiN FILMS
ALI, MUBARAK; HAMZAH, ESAH; ABBAS, TAHIR; TOFF, MOHD … - In: Surface Review and Letters (SRL) 15 (2008) 05, pp. 653-659
resulting in films with rougher morphology. The MDs contamination and growth mechanisms was investigated in TiN coatings over …
Persistent link: https://www.econbiz.de/10004971852
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THE EFFECT OF NITROGEN GAS FLOW RATE ON THE PROPERTIES OF TiN-COATED HIGH-SPEED STEEL (HSS) USING CATHODIC ARC EVAPORATION PHYSICAL VAPOR DEPOSITION (PVD) TECHNIQUE
MUBARAK, ALI; HAMZAH, ESAH BINTI; TOFF, MOHD RADZI HJ. MOHD - In: Surface Review and Letters (SRL) 12 (2005) 04, pp. 631-643
rate but was higher than the uncoated polished sample. Microhardness of TiN-coated HSS coupons showed more than two times … study, titanium nitride (TiN) coatings on high-speed steel (HSS) coupons were produced with a cathodic arc evaporation … of TiN-coated HSS coupons. The coating properties investigated in this work included the surface morphology, thickness of …
Persistent link: https://www.econbiz.de/10004977522
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EFFECT OF METAL ION ETCHING ON THE TRIBOLOGICAL, MECHANICAL AND MICROSTRUCTURAL PROPERTIES OF TiN-COATED D2 TOOL STEEL USING CAE PVD TECHNIQUE
ALI, MUBARAK; HAMZAH, ESAH BINTI; TOFF, MOHD RADZI HJ. MOHD - In: Surface Review and Letters (SRL) 13 (2006) 04, pp. 413-421
A study has been made on TiN coatings deposited on D2 tool steel substrates by using commercially available cathodic … arc evaporation, physical vapor deposition technique. The goal of this work is to determine the usefulness of TiN coatings … in order to improve the micro-Vickers hardness, coefficient of friction and surface roughness of TiN coating deposited on …
Persistent link: https://www.econbiz.de/10004977513
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Friction coefficient and radius of curvature effects upon traffic flow on a curved Road
Zhu, Wen-Xing; Zhang, Li-Dong - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 20, pp. 4597-4605
We investigate the friction coefficient and radius of curvature effects upon traffic flow analytically and numerically. A new model is proposed to describe the motion of vehicles running on a curved road. The stability condition is obtained by the use of control theories. The nonlinear analysis...
Persistent link: https://www.econbiz.de/10010873783
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Enhanced AHS Safety Through the Integration of Vehicle Control and Communication
Hedrick, J. K.; Uchanski, M.; Xu, Q. - Institute for Transportation Studies (ITS), University … - 2001
A new architecture for a mobile ad-hoc communication network is developed, and simulation results show that the proposed MAC protocol can enhance transmission success probability from 0 to 97%. Two novel applications of vehicle-to-vehicle networks are then developed and simulated. The first...
Persistent link: https://www.econbiz.de/10010537130
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MICROSTRUCTURE AND WEAR PROPERTIES OF COMPOSITE COATINGS PRODUCED BY LASER CLADDING OF Ti-6Al-4V WITH GRAPHITE AND SILICON MIXED POWDERS
TIAN, Y. S.; CHEN, C. Z.; WANG, D. Y.; HUO, Q. H.; LEI, … - In: Surface Review and Letters (SRL) 12 (2005) 02, pp. 161-165
-eutectic TiC and eutectic Ti5Si3 compounds. Test results show that the coatings exhibit a higher microhardness and a lower friction …
Persistent link: https://www.econbiz.de/10005080527
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Goodwin’s growth cycle model with the Bhaduri–Marglin accumulation function
Mariolis, Theodore - In: Evolutionary and institutional economics review 10 (2013) 1, pp. 131-144
Persistent link: https://www.econbiz.de/10010241278
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Analysing the Properties of Surface Layers Generated by Sheet Metal Forming Operations
Jana, Šugárová; Peter, Šugár; Peter, Zemko - In: Research Papers Faculty of Materials Science and … 18 (2010) 29, pp. 39-45
The paper brings results of the surface layers properties analysis of a thin wall hollow sheet metal parts, produced by metal spinning and deep drawing. The influence of mandrel (workpiece) frequency of rotation on the spun parts surface layer strainhardening is studied and compared with the...
Persistent link: https://www.econbiz.de/10011008391