On the method of calculating the energy density of laser radiation in a metal surface modification

Abstract Today, modification of metal surfaces using laser radiation (laser ablation) is one of the most common processing methods in various scientific studies. At the same time, there is no unified approach to estimating the energy of laser radiation impact on the metal surface, which significantly complicates the comparison of the results of studies performed at different parameters of laser radiation. In the present work, a universal method of calculating the energy density of laser radiation impact on the surface is presented. The formation of relief with identical geometric characteristics at different parameters of laser radiation, but with the same energy density of radiation effect on the surface being modified, was experimentally confirmed.

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Fiber Surface Modification Due To Excimer Laser Radiation (Part2). Surface Changes of Poly (ethylene terephthalate) Fibers by Laser Ablation.

Sen i Gakkaishi ◽

10.2115/fiber.49.4_157 ◽

1993 ◽

Vol 49 (4) ◽

pp. 157-162 ◽

Cited By ~ 5

Author(s):

Hirosuke Watanabe ◽

Tadahiko Takata ◽

Masuo Tsuge

Keyword(s):

Surface Modification ◽

Laser Radiation ◽

Laser Ablation ◽

Excimer Laser ◽

Ethylene Terephthalate ◽

Fiber Surface ◽

Poly Ethylene Terephthalate ◽

Excimer Laser Radiation ◽

Poly Ethylene ◽

Surface Changes

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Increasing in Reliability of Power Transmissions Bearings by Surface Modification and Coating

Volume 7: 10th International Power Transmission and Gearing Conference ◽

10.1115/detc2007-34689 ◽

2007 ◽

Author(s):

Efim Tesker ◽

Sergey Tesker ◽

Victor Sirotin ◽

Michael Salolykin ◽

Nicolay Yakovlev

Keyword(s):

Surface Modification ◽

Laser Radiation ◽

Bearing Capacity ◽

Laser Treatment ◽

Metal Surface ◽

Applied Research ◽

Laser Surface ◽

Surface Coatings ◽

Laser Surface Modification ◽

Operating Properties

The data of applied research aimed at new laser surface modification technologies development are presented in this paper. Both polymer and metal surface coatings formed on steel parts under laser radiation have been tested and their influence on the friction conditions, reliability, bearing capacity and durability of the drive item have been investigated. The relationships between laser treatment modes, coatings composition and various exploitation parameters have been obtained. It is shown that the worked out technologies, to be used in production, provide power transmissions bearings with increased reliability and operating properties.

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A Low Temperature Self‐Assembled ZrO 2 Layer as a Surface Modification for High Energy Density Ni‐Rich Cathode Materials in a Lithium‐Ion Battery

Energy Technology ◽

10.1002/ente.202000800 ◽

2020 ◽

Author(s):

Van-Chuong Ho ◽

Hyejin An ◽

Meihua Hong ◽

Suhyun Lee ◽

Jineun Kim ◽

...

Keyword(s):

Surface Modification ◽

Energy Density ◽

Low Temperature ◽

Lithium Ion Battery ◽

Cathode Materials ◽

Lithium Ion ◽

High Energy ◽

High Energy Density ◽

Self Assembled

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Control of Local Hardness Gradient of Metal Surface by Inclined Surface Treatment Using Ultrasonic Nanocrystal Surface Modification

International Journal of Precision Engineering and Manufacturing-Green Technology ◽

10.1007/s40684-020-00303-6 ◽

2021 ◽

Vol 8 (2) ◽

pp. 533-546

Author(s):

Yeong-Kwan Jo ◽

Yeong-Wook Gil ◽

Do-Sik Shim ◽

Young-Sik Pyun ◽

Sang-Hu Park

Keyword(s):

Surface Modification ◽

Surface Treatment ◽

Metal Surface ◽

Incident Angle ◽

Surface Hardness ◽

Parameter Study ◽

Local Hardness ◽

Practical Usefulness ◽

Inclined Surface ◽

Hardness Gradient

AbstractWe propose an effective method to control the local hardness and morphology of a metal surface by tilting the incident angle of a horn during ultrasonic nanocrystal surface modification (UNSM). In this study, surface treatment using UNSM was performed on an S45C specimen and a parameter study was conducted for optimization. The process parameters were the feeding rate, static load, striking force, and processing angle (Ф). In particular, the Ф was analyzed by tilting the horn by 0°, 10°, 20°, 30°, 40°, and 45° to understand its effect on surface hardness and changes in the morphology. From fundamental experiments, some important phenomena were observed, such as grain-microstructure changes along the processing and thickness directions. Furthermore, to verify the practical usefulness of this study, a flat and a hemispherical specimen of S45C material were treated using UNSM with various values of Ф. A significant change in hardness (an increase from 2–45%) and a gradual hardness gradient on the tested specimens could be easily realized by the proposed method. Therefore, we believe that the method is effective for controlling the mechanical hardness of a metal surface.

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A Novel Approach for Metal Surface Modification

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.280-283.1805 ◽

2007 ◽

Vol 280-283 ◽

pp. 1805-1806

Author(s):

Zhi Jun Cao ◽

Jia Chen Liu ◽

Li Bin Liu ◽

Hao Ye ◽

Yan Qiu Wei

Keyword(s):

Surface Modification ◽

Wear Rate ◽

Charge State ◽

Metal Surface ◽

Surface Hardness ◽

Metallic Surface ◽

New Approach ◽

Novel Approach ◽

Complex Shapes ◽

Enhanced Surface

A new approach was developed for surface modification of metallic surface. By treating nano-zirconia particles and metal surface in different charge state, nano-zirconia particles can be dispersedly inlaid in metal surface owing to electrostatic and nanometer effects. By using this method, metal components of complex shapes, especially those having inside surfaces, might be easily improved, i.e., enhanced surface hardness and wear rate.

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