Journal ArticleDOI
Effect of roller burnishing on pure aluminum alloyed by copper
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In this paper, the effects of the roller burnishing process on pure aluminum alloyed by pure copper at 3, 6% and 9% percentages were reviewed and analyzed using cylindrical work pieces.Abstract:
Purpose – The purpose of this paper is to review, analyze and present the effects of the roller burnishing process on pure aluminum alloyed by pure copper at 3%, 6% and 9% percentages. Roller burnishing is one of the effective finishing treatment methods in terms of stabilization of surface layers properties along the depth, Roller burnishing is one of the effective methods used to improve the surface layer properties such as microhardness and average surface roughness.Design/methodology/approach – Three different Al‐Cu alloys of 3%, 6% and 9% copper additions were prepared and microstructure, micro hardness and mechanical properties investigated. Then the roller burnishing mechanism was applied on Al‐Cu alloys on cylindrical work pieces, different conditions were used, and the results were obtained and discussed.Findings – The best enhancement in hardness was 46.4% which was achieved at 9% Cu addition, whereas the best enhancement in the flow stress was 101.8% which was achieved at 9% Cu addition. Applyi...read more
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Optimization of roller burnishing process on EN-9 grade alloy steel using response surface methodology
TL;DR: In this article, a mathematical model was developed to optimize the surface characteristics (surface roughness and surface hardness) for the roller burnishing tool and workpiece materials considered are tungsten carbide (69 HRC) and EN-9 Grade Alloy Steel (10 HRC).
Journal ArticleDOI
Optimisation of internal roller burnishing process in CNC machining center using response surface methodology
TL;DR: In this paper, an optimization of the burnishing process was carried out to find better performance of burnishing processes in CNC machining center using response surface methodology (RSM).
Journal ArticleDOI
Role of Ultrasonic Shot Peening in Environmental Hydrogen Embrittlement Behavior of 7075-T6 Alloy
Mahdieh Safyari,Masoud Moshtaghi +1 more
TL;DR: In this article, the effect of ultrasonic shot peening on the environmental hydrogen embrittlement behavior of the 7075-T6 aluminum alloy was investigated using an X-ray diffractometer.
Journal ArticleDOI
Elastic moduli of nanocrystalline binary Al alloys with Fe, Co, Ti, Mg and Pb alloying elements
Rita I. Babicheva,D.V. Bachurin,Sergey V. Dmitriev,Ying Zhang,Shaw Wei Kok,Lichun Bai,Kun Zhou +6 more
TL;DR: In this article, the elastic moduli of the alloys depend on a distribution of the alloying elements, and the moduli for polycrystalline aggregates of Al and Al-X alloys with randomly distributed X atoms are estimated based on the elastic constants of corresponding single-cr...
Journal ArticleDOI
Deformation of nanocrystalline binary aluminum alloys with segregation of Mg, Co and Ti at grain boundaries
A. V. Zinovev,A. V. Zinovev,M. G. Bapanina,Rita I. Babicheva,Rita I. Babicheva,N. A. Enikeev,Sergey V. Dmitriev,Sergey V. Dmitriev,Kun Zhou +8 more
TL;DR: In this article, the influence of temperature and sort of alloying element on the deformation of the nanocrystalline (NC) binary Al alloys with segregation of 10.2 at % Ti, Co, or Mg over grain boundaries has been studied using the molecular dynamics.
References
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Journal ArticleDOI
Contact and Rubbing of Flat Surfaces
TL;DR: In this article, the authors compared the deduced dependence of the experimental observables on the load with the experimental evidence and concluded that the most realistic model is one in which increasing the load increases both the number and size of the contact areas.
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An Investigation into Roller Burnishing
TL;DR: In this paper, the influence of different burnishing conditions on both surface microhardness and roughness was investigated, namely, burnishing speed, force, feed, and number of passes.
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The effects of ball- and roller-burnishing on the surface roughness and hardness of some non-ferrous metals
TL;DR: In this article, simple ball-and roller-burnishing tools were used for the experimental work of the present study, these tools being quite similar in their design principles, and the performance of the tools, together with the effects of the burnishing force and the number of burnishing tool passes on the surface roughness and surface hardness of commercially available aluminum and brass, were studied.