Friction Characteristics of B+- and N2+-Implanted Fe-Cr Alloys

1988 ◽  
Vol 128 ◽  
Author(s):  
Jun Sasaki ◽  
Masaya Iwaki
Keyword(s):  
Friction Coefficient ◽  
Ion Implantation ◽  
Room Temperature ◽  
Chromium Content ◽  
Life Time ◽  
Nitrogen Implantation ◽  
Friction Characteristics ◽  
Friction Measurements ◽  
Nitrogen Ion ◽  
Ion Species

ABSTRACTA study has been made on friction and hardness of boron and nitrogen ion implanted Fe-Cr alloys. Ion implantation has been carried out with doses ranging from 5 wt% up to 20 wt% at energies of 50, 100 and 150 keY at room temperature. Reciprocal traces for friction coefficient measurements were performed by using a Bowden-Leben tester at a low speed without lubricant. Hardness was measured by using a micro-Vickers tester at a load of 2gf. Hardness of the specimen increases after the implantation with either of ion species. Friction measurements with reciprocal sliding show that a life-time of decreased friction coefficient depends on implanted ion species, Cr concentrations and acceleration energies. For B+- implantation, the lower the chromium contents are, the longer a decreased friction coefficient lasts. Meanwhile, the friction reduced by nitrogen implantation lasts longer for higher chromium content substrates. Dependence of friction coefficient on an acceleration energy is discussed for B+-implantation.

Friction Characteristics of B+- and N2+-Implanted Fe-Cr Alloys.

1988 ◽  
Vol 140 ◽  
Author(s):  
Jun Sasaki ◽  
Masaya Iwaki
Keyword(s):  
Friction Coefficient ◽  
Ion Implantation ◽  
Room Temperature ◽  
Chromium Content ◽  
Life Time ◽  
Nitrogen Implantation ◽  
Friction Characteristics ◽  
Friction Measurements ◽  
Nitrogen Ion ◽  
Ion Species

AbstractA study has been made on friction and hardness of boron and nitrogen ion implanted Fe-Cr alloys. Ion implantation has been carried out with doses ranging from 5 wt% up to 20 wt% at energies of 50, 100 and 150 keV at room temperature. Reciprocal traces for friction coefficient measurements were performed by using a Bowden-Leben tester at a low speed without lubricant. Hardness was measured by using a micro-Vickers tester at a load of 2gf. Hardness of the specimen increases after the implantation with either of ion species. Friction measurements with reciprocal sliding show that a life-time of decreased friction coefficient depends on implanted ion species, Cr concentrations and acceleration energies. For B+- implantation, the lower the chromium contents are, the longer a decreased friction coefficient lasts. Meanwhile, the friction reduced by nitrogen implantation lasts longer for higher chromium content substrates. Dependence of friction coefficient on an acceleration energy is discussed for B+-implantation.

Synthesis of Iron Oxynitride by Nitrogen Ion Implantation of Iron Oxide

1988 ◽  
Vol 100 ◽  
Author(s):  
S. B. Ogale ◽  
Seema Teli ◽  
Sunita Chopda ◽  
D. M. Phase ◽  
S. M. Kanetkar
Keyword(s):  
Iron Oxide ◽  
Ion Implantation ◽  
Conversion Electron ◽  
Mossbauer Spectroscopy ◽  
Nitrogen Implantation ◽  
Nitrogen Ion Implantation ◽  
Conversion Electron Mössbauer Spectroscopy ◽  
Conversion Electron Mossbauer Spectroscopy ◽  
Implantation Process ◽  
Nitrogen Ion

ABSTRACTThe effect of N2+ ion implantation in ∝-Fe2O3 has been investigated by means of Conversion Electron Mossbauer Spectroscopy (CEMS). It Is shown that at a dose value of 1×1017 ions/cm2 and 3×1017 Ions/cm2 the samples exhibit new Interesting hyperfine features which can not be ascribed to known oxide or nitride phases. It Is thus concluded that Iron Oxynitrlde Is formed by the nitrogen Implantation process.

The measurement of nitrogen ion species ratio in inductively coupled plasma source ion implantation

2001 ◽  
Vol 136 (1-3) ◽  
pp. 106-110 ◽  
Author(s):  
Jeonghee Cho ◽  
Seunghee Han ◽  
Yeonhee Lee ◽  
Ok Kyung Kim ◽  
Gon-Ho Kim ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Inductively Coupled Plasma ◽  
Plasma Source ◽  
Inductively Coupled ◽  
Plasma Source Ion Implantation ◽  
Nitrogen Ion ◽  
Ion Species

Industrial Applications of Ion Implantation

1983 ◽  
Vol 27 ◽  
Author(s):  
J.K. Hirvoney
Keyword(s):  
Ion Implantation ◽  
Ion Beam ◽  
Industrial Applications ◽  
The Other ◽  
High Dose ◽  
Nitrogen Implantation ◽  
Aqueous Corrosion ◽  
Wear Reduction ◽  
Ion Species ◽  
Corrosion And Oxidation

ABSTRACTThe use of ion implantation for non-semiconductor applications has evolved steadily over the last decade. To date, industrial trials of this technology have been mainly directed at the wear reduction of steel and cobalt-cemented tungsten carbide tools by high dose nitrogen implantation. However, several other surface sensitive properties of metals such as fatigue, aqueous corrosion, and oxidation, have benefitted from either i)direct ion implantation of various ion species, ii)the use of ion beams to “intermix” a deposited thin film on steel or titanium alloy substrates, or iii)the deposition of material in conjunction with simultaneous ion bombardment.This paper will concentrate on applications that have experienced the most industrial trials, mainly high dose nitrogen implantation for reducing wear, but will present the features of the other ion beam based techniques that will make them appear particularly promising for future commercial utilization.

Ion Implantation as a Tool for Improving the Properties of Orthopardic Alloys

1985 ◽  
Vol 55 ◽  
Author(s):  
P. A. Higham
Keyword(s):  
Stainless Steel ◽  
Titanium Alloy ◽  
Ion Implantation ◽  
Treatment Method ◽  
Fatigue Properties ◽  
Wear Properties ◽  
Nitrogen Ion Implantation ◽  
Polarization Studies ◽  
Nitrogen Ion ◽  
Ion Species

ABSTRACTIon Implantation is emerging as a specialized surface treatment method by which orthopaedic alloys can be doped in order to modify for corrision, fatigue and wear properties.In this paper alterations in the corrosion and fatigue resistance of 316LVM stainless steel and Ti 6A1-4V ELI titanium alloy are considered. The effect of various variables was investigated; ion species, flux, accelerating voltage.Changes in corrosion resistance were monitored by performing anodic polarization studies in deaerated 0.1M NaCi solution at 22°C. The most effective species were found to be tantalum and boron for improvements to stainless steel.Fatigue properties were investigated using a Wohler type rotating bend test. Preliminary results show that nitrogen ion implantation improved the fatigue life for the steel but not the titanium alloy. Indications were found to suggest that time since implantation affect the fatigue properties.

scholarly journals Corrosion Wear Performance of Pure Titanium Laser Texturing Surface by Nitrogen Ion Implantation

Metals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 990 ◽  
Author(s):  
Lin Cao ◽  
Yun Chen ◽  
Jie Cui ◽  
Wei Li ◽  
Zhidan Lin ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Friction Coefficient ◽  
Ion Implantation ◽  
Surface Texturing ◽  
Laser Surface ◽  
Laser Surface Texturing ◽  
Textured Surface ◽  
Artificial Joints ◽  
Nitrogen Ion Implantation ◽  
Nitrogen Ion

The poor tribological performances of titanium have significantly limited its applications in the field of artificial joints. In order to solve problems regarding the wear and corrosion of artificial joints in the body, we fabricated the composite materials utilizing the combination of laser surface texturing and nitrogen ion implantation technology, and investigated the effect of laser surface texturing, nitrogen ion implantation, and different dimple area densities on tribological performance. The results show that the textured surface could reduce the friction coefficient and improve the wear resistance, and the optimum dimple density was found to be 25%. After N ion implantation, the wear resistance of the textured sample was further improved, due to the formation of the nitride layer. Moreover, as shown by the electrochemical test results, the corrosion resistance was enhanced significantly. The friction coefficient decreased the most, and the wear resistance increased by 405% with the lowest wear rate of 0.37 × 10−3 mm3/N·m. However, the specimen with a dimple density of 60% had the worst wear resistance. The results of the study provide a basis for the development and application of artificial joint materials.

The Reduction of Adhesion by Ion Implantation

1985 ◽  
Vol 107 (4) ◽  
pp. 467-471 ◽  
Author(s):  
M. Hirano ◽  
S. Miyake
Keyword(s):  
Friction Coefficient ◽  
Ion Implantation ◽  
Friction And Wear ◽  
Room Temperature ◽  
Wear Track ◽  
Friction Test ◽  
Wear Performance ◽  
Boron Implantation ◽  
Argon Ion ◽  
Plate Geometry

The effects of boron and argon ion implantation on the tribological characteristics of SUS440C stainless steel, sliding against a SUS440C ball (unimplanted) were investigated at room temperature using a friction test apparatus employing a ball-plate geometry in the absence of a lubricant. Wear performance was estimated using a profilometer tracing of the specimen wear track. Boron implantation reduced both the friction and wear of SUS440C. The friction coefficient of SUS440C was reduced from 0.75 to 0.15. SEM observations of wear track topography suggest that the reduction of the friction coefficient can be attributed to reduced adhesion due to boron implantation. The friction coefficient of the boron implanted layer decreased with an increase in the total ion dose. Argon implantation was carried out to distinguish the effects of implantation from the influence of contamination. Argon implantation increased the friction coefficient from 0.8 to 1.0 in contrast with boron implantation.

SUPPRESSION OF SILICON NANOSTRUCTURE GROWTH BY MEDIUM ENERGY NITROGEN ION IMPLANTATION

2004 ◽  
Vol 03 (04n05) ◽  
pp. 431-437
Author(s):  
V. J. KENNEDY ◽  
S. JOHNSON ◽  
A. MARKWITZ ◽  
M. RUDOLPHI ◽  
H. BAUMANN ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Room Temperature ◽  
Growth Control ◽  
Low Energy ◽  
Medium Energy ◽  
Nitrogen Ion Implantation ◽  
Silicon Nanostructure ◽  
Nitrogen Ion ◽  
Simple Technology ◽  
20 Nm

A novel nanofabrication technology to produce dense arrays of silicon nanowhiskers up to 20 nm high has been developed. This rapid and simple technology employs electron beam rapid thermal annealing (EB-RTA) of untreated silicon. Pre-implantation of the silicon substrate with nitrogen at low energy (5 keV) has been shown to suppress the formation of these nanostructures. In this paper we demonstrate identical silicon nanostructure growth suppression when produced following nitrogen ion implantation at 50 keV and 100 keV. Specimens were implanted at room temperature and subsequently annealed at 1000°C for 15 s (temperature gradient 5° Cs -1). Specific results obtained from AFM and NRA analysis are discussed highlighting the possibility of silicon nanowhisker growth control using nitrogen ion implantation.

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