Plasma focus assisted carburizing of aluminium

Murtaza, G.; Hussain, Shafqat; Sadiq, Muhammad; Zakaullah, M.

doi:10.1016/j.tsf.2009.05.065

Cited by 33 publications

(18 citation statements)

References 32 publications

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“…This condition was carried out for all experiments. Carburizing started immediately after CH 4 and H 2 mixture were injected into the chamber with the total pressure of about 2 torr. The ratio of the gases was the same in all experiments and was 20% CH 4 and 80% H 2 .…”

Section: Methodsmentioning

confidence: 99%

“…Carburizing started immediately after CH 4 and H 2 mixture were injected into the chamber with the total pressure of about 2 torr. The ratio of the gases was the same in all experiments and was 20% CH 4 and 80% H 2 . The applied voltage was varied in plasma carburizing between 700 and 900 v. All the condition is listed in Table 2.…”

Section: Methodsmentioning

confidence: 99%

“…It has been shown that the surface properties of Al can be improved by the formation of a carbide surface layer [4,5]. The Al 4 C 3 compound provides strength to the composite materials and alloys like Al-Al 4 C 3 , Al-SiC-Al 4 C 3 , and Al-Al 3 Ti-Al 4 C 3 [6].…”

Section: Introductionmentioning

confidence: 99%

“…• C. Different methods have been used for the formation of a carbide layer such as ion implantation, carburizing in a plasma environment and in a plasma spot which is used for aluminum carburizing, using energetic carbon ions emitted from a low-energy (1.5 kJ) Mather type plasma focus device operated with methane [4].…”

Section: Introductionmentioning

confidence: 99%

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The Corrosion Behavior of Carburized Aluminum Using DC Plasma

Pirizadhejrandoost

Mahmoudi

Ahmadi

et al. 2012

Journal of Metallurgy

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Because of the outstanding properties of aluminum, it is widely used in today's advanced technological world. However, its insufficient wear resistance limits its use for commercial and industrial applications. In this study, we performed DC diode plasma carburizing of aluminum in the gas composition of CH 4 -H 2 (20-80%) and at a temperature of about 350• C for 4 and 8 hours. The corrosion properties of the untreated and plasma-carburized samples were evaluated using anodic polarization tests in 3 N HCl solution according to ASTM: G5-94. The metallurgical characteristics were then investigated using XRD and SEM. The results showed that the carburizing process improves the corrosion resistance of treated specimens at low temperature.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Corrosion Behavior of Carburized Aluminum Using DC Plasma

Pirizadhejrandoost

Mahmoudi

Ahmadi

et al. 2012

Journal of Metallurgy

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“…The simplicity in operation and high fluences of emitted ions with wide energy range are making the plasma focus a promising device for material processing. Another unique feature of the plasma focus is that it may be employed for the surface modification of insulator and semiconductor [2] as the target needs not to be electrically conductive [2]. In recent years, various techniques such as laser surface treatment, ion implantation, plasma immersion ion implantation, chemical vapor deposition, physical vapor deposition, ion assisted surface modification, phase changes of thin films, and thin film deposition such as diamond like coatings have been employed for processing of materials.…”

Section: Introductionmentioning

confidence: 99%

Coating of Titanium Nitride on Stainless Steel Targets by a 4 kJ Plasma Focus Device

2011

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Titanium nitride thin films were deposited on stainless steel (SS316L) targets by using a 4 kJ plasma focus device. The corresponding energy flux delivered to SS316L surface is estimated to be 2.69 9 10 13 kev cm -3 ns -1 . X-ray diffraction analysis reveals the formation of a nanocrystalline titanium nitride coating on the surface of targets. Thickness of the elements found on the surface of treated samples which are obtained by Rutherford backscattering spectrometry analysis (RBS) were (910 15 at/cm 2 ) .45% Ti, 50% N and 5% Fe. Scanning electron microscopy was used to indicate changes in surface morphology. Existence of grains in different size confirms the formation of TiN crystals on the surface of targets.

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Behavior of nitrided and carburized AISI 904 L stainless steels under severe light ion beam irradiation with plasma focus

Molleja

Milanese

Moroso

et al. 2015

Surf. Interface Anal.

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Superaustenitic stainless steels have become of growing interest in industrial and technological fields, but there is not a complete understanding on their fundamental properties and their performances. For this paper, AISI 904L superaustenitic samples were nitrided and carburized in order to study the expanded austenite stability under severe deuterium and helium ion bombardment. Surface treatments were conducted using pulsed plasma glow discharges in a low pressure atmosphere, and a dense plasma focus device was used to irradiate the samples. Characterization techniques used were focused ion beam/SEM, energy-dispersive X-ray spectroscopy, and grazing incidence X-ray diffraction. Our results showed in carburized samples lattice expansion growth with the time treatment, but in nitrided samples, an expanded austenite reduction with time treatment was observed due to the formation of nitride nanoagglomerates. Moreover, this ion impingement provoked surface melting and a severe collision cascade, and a damaged bead located under the craters composed solely of minor alloying atoms. Furthermore, nitrided samples were more stable following ion bombardment than the carburized ones. When helium ions were used, the loss of expansion (triggered by diffusion processes of N or C to deeper regions) was more pronounced in the expanded austenite, but when deuterium ions were used to bombard the sample, there was a crystallite development of stressed austenite, which provoked a diffraction peak arousal at 43.3 degrees. Copyright (c) 2015 John Wiley & Sons, Ltd

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Plasma focus assisted carburizing of aluminium

Cited by 33 publications

References 32 publications

The Corrosion Behavior of Carburized Aluminum Using DC Plasma

The Corrosion Behavior of Carburized Aluminum Using DC Plasma

Coating of Titanium Nitride on Stainless Steel Targets by a 4 kJ Plasma Focus Device

Behavior of nitrided and carburized AISI 904 L stainless steels under severe light ion beam irradiation with plasma focus

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