Metal surface modification by ion implantation

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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Surface modification of metal alloys by plasma immersion ion implantation and subsequent plasma nitriding

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2004.04.027 ◽

2004 ◽

Vol 186 (1-2) ◽

pp. 204-208 ◽

Cited By ~ 35

Author(s):

K.G Kostov ◽

M Ueda ◽

M Lepiensky ◽

P.C Soares ◽

G.F Gomes ◽

...

Keyword(s):

Surface Modification ◽

Ion Implantation ◽

Plasma Nitriding ◽

Metal Alloys ◽

Plasma Immersion Ion Implantation

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A model of plasma source ion implantation for inner surface modification

Journal of Physics D Applied Physics ◽

10.1088/0022-3727/29/1/042 ◽

1996 ◽

Vol 29 (1) ◽

pp. 274-276 ◽

Cited By ~ 13

Author(s):

Mu Sun ◽

P Zhu ◽

S Z Yang

Keyword(s):

Surface Modification ◽

Ion Implantation ◽

Plasma Source ◽

Inner Surface ◽

Plasma Source Ion Implantation

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The Vacancy Generation Influence on the Initial Stage of Ion Implantation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1097.29 ◽

2015 ◽

Vol 1097 ◽

pp. 29-34

Author(s):

E.S. Parfenova ◽

Anna G. Knyazeva

Keyword(s):

Surface Layer ◽

Ion Implantation ◽

Metal Surface ◽

Impurity Concentration ◽

Coupled Model ◽

Irreversible Processes ◽

Concentration Profiles ◽

Thermodynamics Of Irreversible Processes ◽

Vacancy Generation ◽

Initial Stage

The coupled model is presented to describe the elements penetration into the surface layer of metal during the process of ion implantation. Mechanical stresses arising due to the interaction of particles with the surface affect the redistribution of the implanted impurity. In addition, the existence of vacancies in the metal surface and their generation under the stresses influence are taken into account. The kinetic law is written on the basis of the thermodynamics of irreversible processes. The solution had been found numerically. As a result, the distributions of impurity concentration and deformations have been obtained for various time moments. The comparison of the concentration profiles with vacancies and without their have been given.

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Special Issues/Surface Modification and Passivation of Materials by Ion Beams. Nitride Layers Formed by Nitrogen Ion Implantation in Metals and Corrosion Resistance.

Journal of The Surface Finishing Society of Japan ◽

10.4139/sfj.43.1103 ◽

1992 ◽

Vol 43 (12) ◽

pp. 1103-1108

Author(s):

Keiichi TERASHIMA ◽

Kikuo MATSUSAKA

Keyword(s):

Corrosion Resistance ◽

Surface Modification ◽

Ion Implantation ◽

Ion Beams ◽

Nitrogen Ion Implantation ◽

Nitrogen Ion ◽

Nitride Layers

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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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