Effects of laser shock peening and groove spacing on the wear behavior of non-smooth surface fabricated by laser surface texturing

Purpose This paper aims to investigate the effect of laser surface texturing (LST) on the wear behavior of C-263 nickel-based superalloy and to identify the optimum wear operating condition. Design/methodology/approach C-263 nickel-based superalloy was selected as substrate material and pico-second Nd-YAG laser was used to fabricate the waviness groove texture on their surface. Wear experiments were designed based on Box-Bhenken design with three factors of sliding velocity, sliding distance and applied load. Wear experiments were performed using pin on disc tribometer. Morphologies of textures and worn-out surfaces were evaluated by scanning electron microscopy and energy dispersive spectroscopy. Surface topographies and surface roughness of the textures were evaluated by weight light interferometry. The response surface methodology was adopted to identify the optimum wear operating condition and ANOVA to identify the significant factors. Findings LST improves the wear resistance of C-263 nickel-based superalloy by appeoximately 82 per cent. Higher wear rate occurs at maximum values of all operating conditions, and applied load affects the coefficient of friction. Applied load significantly affects the wear rate of un-textured specimen. The interaction of sliding velocity and applied load also affects the wear rate of textured specimens. The optimum parameters to get minimum wear rate for un-textured specimens are 1.5 m/s sliding velocity, 725 m sliding distance and 31 N of applied load. For textured specimens, the optimum values are 1.5 m/s sliding distance, 500 m sliding distance and 40 N of the applied load. Originality/value Literature on laser texturing on nickel-based superalloy is very scarce. Specifically, the effect of laser texturing on wear behavior of the nickel-based superalloy C-263 alloy is not yet reported.

Download Full-text

Synergy Effect of Ultrasonic Nanocrystalline Surface Modification and Laser Surface Texturing on Friction and Wear Behavior of Graphite Cast Iron

Tribology Transactions ◽

10.1080/10402004.2016.1158339 ◽

2016 ◽

Vol 60 (2) ◽

pp. 226-237 ◽

Cited By ~ 5

Author(s):

Khagendra Tripathi ◽

Gobinda Gyawali ◽

Auezhan Amanov ◽

Soo W. Lee

Keyword(s):

Surface Modification ◽

Cast Iron ◽

Friction And Wear ◽

Wear Behavior ◽

Surface Texturing ◽

Laser Surface ◽

Laser Surface Texturing ◽

Synergy Effect ◽

Friction And Wear Behavior ◽

Graphite Cast Iron

Download Full-text

The influence of bulges produced by laser surface texturing on the sliding friction and wear behavior

Tribology International ◽

10.1016/j.triboint.2012.10.018 ◽

2013 ◽

Vol 60 ◽

pp. 216-223 ◽

Cited By ~ 48

Author(s):

Auezhan Amanov ◽

Ryo Tsuboi ◽

Hironobu Oe ◽

Shinya Sasaki

Keyword(s):

Friction And Wear ◽

Sliding Friction ◽

Wear Behavior ◽

Surface Texturing ◽

Laser Surface ◽

Laser Surface Texturing ◽

Friction And Wear Behavior

Download Full-text

Laser Surface Texturing to Realize Micro-grids on DLC Coating: Effect of Marking Speed, Power, and Loop Cycle

International Journal of Precision Engineering and Manufacturing ◽

10.1007/s12541-021-00498-x ◽

2021 ◽

Vol 22 (5) ◽

pp. 745-758

Author(s):

L. Giorleo ◽

L. Montesano ◽

G. M. La Vecchia

Keyword(s):

Wear Behavior ◽

Surface Texturing ◽

Laser Surface ◽

Laser Surface Texturing ◽

Coating Properties ◽

Dlc Coating ◽

Probe System ◽

Digital Microscope ◽

Coated Surface ◽

Micro Grids

AbstractIn the present study, laser surface texturing was tested with the aim of improving the tribological properties of a diamond-like carbon (DLC) coating. Two experimental campaigns were designed to realize different micro-grids, and to study the effect of marking speed, laser power, and loop cycle. The grid profiles obtained were analyzed using a digital microscope and a laser probe system to measure the track cross section. At the end of the experiments, the authors identified a good-quality track obtained by imposing a marking speed of 300 mm/s, a power of 0.5 W, and one loop cycle. For the identified condition, the presence of defects (such as cracks) on both the coated surface and at the substrate/coating interface was analyzed. Furthermore, the coating nanohardness, adhesion to the substrate, and wear behavior in dry condition were investigated. The results underline how laser texturing can improve the DLC wear behavior (wear tracks lower than 30%) without considerably affecting the other tested coating properties.

Download Full-text

Nd:YOV4 laser surface texturing on DLC coating: Effect on morphology, adhesion, and dry wear behavior

10.1063/1.5034891 ◽

2018 ◽

Cited By ~ 1

Author(s):

Maria Surfaro ◽

Luca Giorleo ◽

Lorenzo Montesano ◽

Gabriele Allegri ◽

Elisabetta Ceretti ◽

...

Keyword(s):

Wear Behavior ◽

Surface Texturing ◽

Laser Surface ◽

Laser Surface Texturing ◽

Dlc Coating

Download Full-text

Improving Tribological Behavior of ICE’s Cylinder Surface by Laser Surface Texturing (LST)

Journal of Nepal Physical Society ◽

10.3126/jnphyssoc.v7i2.38582 ◽

2021 ◽

Vol 7 (2) ◽

pp. 9-16

Author(s):

K. Tripathi ◽

S. W. Lee

Keyword(s):

Coefficient Of Friction ◽

Combustion Engine ◽

Wear Behavior ◽

Surface Texturing ◽

Laser Surface ◽

Laser Surface Texturing ◽

Cylinder Surface ◽

Viscous Oil ◽

The Coefficient Of Friction ◽

Grey Cast

This study investigates the effect of laser surface texturing (LST) on the friction and wear behavior of grey cast iron (GCI) of internal combustion engine (ICE) cylinder in lubricated conditions. The dimples having diameter of about (58-60) μm and depth of about 10 μm were created on the surface with various dimple densities ranging from 5 to 50%. A ball-on-disc friction tests were performed for all the specimens under 5W30 and 15W50 oils with different viscosities. The tests were carried out at a load of 5N and speed of 5cm/s. The coefficient of friction of the dimpled specimen was reduced significantly by approximately 32% as compared to the polished speciemen. Specimen with 15% dimples exhibits the lowest coefficient of friction of all the dimpled specimens in both low and high viscous oils. The high viscous oil found to be more efficient regarding coefficeint of friction compared to the low viscous oil. The degree of wear of the specimens was analyzed on the basis of wear scar developed on the counter surface as it supplements the wear during the friction tests. The resistance to wear of the sliding specimens was found to be increased in high viscous oil compared to that in low viscous oil.

Download Full-text