Surface modification of AA7075 T651 by laser shock peening to improve the wear characteristics

Development of Al1070-Quasicrystal (Al65Cu23Fe12) composites using friction stir processing and its mechanical characterization

“…Hence, these alloys are susceptible to the failures due to wear and fatigue [1][2][3][4][5]. Therefore, many of the researchers are interested in improving their strength with variety of strengthening techniques [6][7][8][9].…”

Investigation on the Effect of Thermal and Mechanical Treatment to the Offshore Corrosion Behavior of 6351 Aluminum Alloy in Red Sea Environments

“…Chromating process involving introduction of hexavalent chromium as the alloying element in the surface by chemical processes [ 25 ] and rare earth material coating such as CeO 2 is employed by chemical methods to protect the surface from aggressive chemical attack [ 26 ]. Conversely, to obtain the mechanical stability of the alloy surface, addition of hard particles such as boron carbide and graphite to the surface and severe surface mechanical treatments (SSMT) such as shot peening, laser shock peening, and surface mechanical attrition treatment are used to deform the alloy surface to achieve enhancement in surface strength [ 27 – 29 ]. Surface mechanical attrition treatment (SMAT) is one among the efficient techniques to improve the surface strength by refining the grain size leading to nanograins formation [ 30 , 31 ].…”

Experimental Investigation of Wire-EDM Machining of Low Conductive Al-SiC-TiC Metal Matrix Composite

“…Scientists and researchers have performed various cutting operations availing mechanical erosion (abrasive water jet and ultrasonic erosion) [5][6][7], thermal erosion (electrical discharge machining, wire electrical discharge machining, and electron beam melting, laser cutting) [8][9][10][11], and chemical erosion (chemical erosion and electrochemical cutting) [12,13] for composites of varied natures. Though each of them are significant in achieving desired results, wire-electrical discharge machining (WEDM) [14] supersedes in the aspects of achieving high quality cutting and keeping it economical in perspective of cutting operation costs.…”

“…Other cutting techniques, of abrasive water jet to laser cutting have a limitation of cutting thickness of the specimen and the economics of cutting is magnified by ten times in comparison with the WEDM method [5,15]. In terms of economics of machining, chemical or electrochemical erosion techniques provide cost effective methods, but they are also susceptible to damage of the workpiece in terms of accuracy due to the predominant factor of overcut and surface modification (corrosion: factor) [12].…”