Influence of Nd:YAG Laser Energy on Mechanical properties of Nitriding Steel

Aziz, Ansam Abdul Jabbar; Khalid, Enass A.; Alwan, Abbas S.

doi:10.29194/njes.23020187

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…Figure 7 shows the worn surfaces after the wear test with different laser power, decreased the pit and scratch with increased laser power are a function of the surface hardness. These results agree with what was obtained by Aziz et al [21].…”

Section: Effect Of Power Laser On Wear Testsupporting

confidence: 94%

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Enhancement of Mechanical Properties and Corrosion Resistance of Cast Iron Alloy Using CO2 Laser Surface Treatment

K. Fayyadh

2022

JMechE

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This work aimed to study the effect of laser surface treatment on the mechanical characteristics and corrosion behaviour of grey cast iron type A159. Many technical applications used conventional surface treatment, but laser surface hardening has recently been used to enhance the surface properties of many alloys. The mechanical characteristics, including microstructure, microhardness, and wear resistance of A159 grey cast iron, were studied, in addition to corrosion behaviour. The experimental laser parameters in this work were 0.9, 1.2, and 1.5 KW power with continuous wave carbon dioxide lasers with scanning speeds of 10 and 12 mm/s were used. The results found that phase-transitional alterations in microstructure were influenced by laser therapy. Also, the microhardness increased with increasing power, with the maximum reaching approximately 950 HV while the base metal has an average of approximately 260 HV. Also, we found the power laser increased corrosion resistance by lowering the corrosion rate (CR) from 21.10 for the untreated sample to 1.02 (m.p.y.), additionally, corrosion protection efficiency (CPE) increased to 95.27 percent. On the other hand, the wear test revealed that mass loss decreased as laser surface treatment power increased; it reached 0.19 g for the laser-treated samples, compared to 1.25 g for the base metal after the 50th minute of the wear experiment.

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Section: Effect Of Power Laser On Wear Testsupporting

confidence: 94%

“…In industrial or scientific applications many types of lasers are used, including carbon dioxide laser (CO2), with a wavelength of (10.6 nm) [20], [21]. The CO2 laser is widely used in material processing applications due to its ability to deliver very high energy with accepted efficiency.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Mechanical Properties and Corrosion Resistance of Cast Iron Alloy Using CO2 Laser Surface Treatment

K. Fayyadh

2022

JMechE

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“…From this experiment, the compact grinder was found to positively able to grind/polish a specimen with high precision. This benefit is crucial for material removal, grinding and polishing process for a variety of engineering materials [11][12][13].…”

Section: Methodsmentioning

confidence: 99%

Design of a compact grinding machine

Ashvinderjit

Chew

2021

J. Phys.: Conf. Ser.

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The availability and cost of tools are among concerns to the public and industries as key operation device used either for commercial or maintenance purposes such precision grinders or polishing machines are usually expensive. Assorted grinding tools in the market differ in terms of cost, required user proficiency levels and have different tool designs that can lead to limitations of flatness of ground surface and significant vibrations with prolonged use. The aim of this study is to develop a design compact grinder that is able to perform precise grinding and polishing while being cost efficient. Both functionality and ergonomic aspects were taken into consideration with market standards derived from datasheets. An initial design of the grinding machine was made using SolidWorks CAD software. A prototype was subsequently constructed and tested by using typical metallurgical sample preparation process with test parameters of grade of grinding paper and usage of lubricant. Microscopic image of ground specimens showed improvement in the quality of grinding with emery paper grades from coarse to fine grits with lubricant during the grinding process. Moreover, the designed compact grinding machine showed better surface finish when compared to using a typical angle grinder on aluminium sample.

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“…In atmospheric turbulence, the physical appearance of the beam propagation is affected by the turbulent layer. The diffraction optics, computer-synthesized, holograms beams can be simulated and analyzed, like the Hermite-Gaussian methods [16], also investigated in [17], these steps are improved [18]. The beam order of the Lorentzian beam as a foundation is produced and updated depending on their information.…”

Section: Introductionmentioning

confidence: 99%

An evaluation of scintillation index in atmospheric turbulent for new super Lorentz vortex Gaussian beam

Khamees

Hussein²,

Abdulkhaleq³

2023

TELKOMNIKA

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Super Lorentz vortex Gaussian beam (SLVGB) is propagated via the turbulent atmosphere parameters. The benefit key of the SLVGB wave model is that the unlimited bandwidth wave and a spherical wave are involved. Additionally, Huygens Fresnel integral was used for schoolwork to study the propagation of SLVGB in a slant direction via a moderate turbulent medium. On the other hand, applying the crude international telecommunication union (ITU-R) model possible. Moreover, the Kolmogorov turbulent power spectrum model is applied, and the source field is dispersed by the zenith angle to the receiver plane. Additionally, examine the contour of the source field and the SLVGB intensity. To investigate various parameters such as source size, mode, scintillation index, topological charge, and others that are associated with the beam of super Lorentz vortex Gaussian are entirely understood, the outcomes were examined, and obtained other references to build the beam of slant path propagation in turbulent; the form constants are especially in comparison and matching. Our graphical findings indicate that the parameters happened randomly in the scintillation index and intensity of the SLVGB, resulting in a novel beam technical configuration. To summarize, this article is advantageous for remote sensing and uses an optical communications system and laser applications.

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Influence of Nd:YAG Laser Energy on Mechanical properties of Nitriding Steel

Cited by 3 publications

References 7 publications

Enhancement of Mechanical Properties and Corrosion Resistance of Cast Iron Alloy Using CO2 Laser Surface Treatment

Enhancement of Mechanical Properties and Corrosion Resistance of Cast Iron Alloy Using CO2 Laser Surface Treatment

Design of a compact grinding machine

An evaluation of scintillation index in atmospheric turbulent for new super Lorentz vortex Gaussian beam

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