Application of high intensity pulsed ion and plasma beams in modification of materials

Piekoşzewski, J.; Werner, Z.; Szymczyk, W

doi:10.1016/s0042-207x(01)00224-x

Cited by 52 publications

(20 citation statements)

References 22 publications

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“…As a REE source the mishmetal of the composition (in wt%): Ce -65.3, La -34.0 and balance of Fe, Mg, Pr was used. REE were incorporated into one surface of steel samples using high intensity pulsed plasma beams generated in a rod plasma injector (RPI) operated in the DPE mode described elsewhere [8,9]. In this mode of operation the plasma contains ions of the working gas and also ions/atoms eroded from the electrode tips.…”

Section: Methodsmentioning

confidence: 99%

Structure and Composition of Scales Formed on AISI 316 L Steel Alloyed with Ce/La Using High Intensity Plasma Pulses after Oxidation in 1000°C

et al. 2011

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It is well documented that the high oxygen affinity elements such as Y, Ce, La, Er and other rare earth elements added to steel in small amounts can improve their high temperature oxidation resistance. Rare earth elements can be either alloyed during the steel making process or introduced through surface treatment techniques. Improvement of high temperature oxidation resistance of AISI 316 L steel by incorporation Ce and La elements into its near surface region using high intensity pulsed plasma beams in so-called deposition by the pulse erosion mode was investigated in the present work. The samples were irradiated with 3 short (µs scale) intense (energy density 3 J/cm 2 ) plasma pulses. Heating and cooling processes occur under non-equilibrium conditions. In all samples the near surface layer of the thickness in µm range was melted and simultaneously doped with cerium and lanthanum. The modified samples were oxidized at 1000• C for 100 h in air. The obtained effects were: oxide scales formed on the treated samples were more fine-grained, compact and adhering better that those formed on the un-treated samples.

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Section: Methodsmentioning

confidence: 99%

Structure and Composition of Scales Formed on AISI 316 L Steel Alloyed with Ce/La Using High Intensity Plasma Pulses after Oxidation in 1000°C

et al. 2011

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“…illustrating the modification of the surface properties of semiconductors, metals and ceramics using high intensity pulsed ion beams (HIPIBs) and their group's work can be found in [82][83][84][85]. RTP with ions leads to altered microstructures, reduced grain size, metastable phase formation, and improved mechanical and other properties in the treated region.…”

Section: Rtp Processing Using Ion Beamsmentioning

confidence: 99%

High-energy density beams and plasmas for micro- and nano-texturing of surfaces by rapid melting and solidification

Surla¹,

Ruzic²

2011

J. Phys. D: Appl. Phys.

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Several advances in materials research have been made due to the wide array of tools currently available for the processing of materials: plasmas, electron beams, ion beams and lasers. The area of material science is fortunate to have seen the development of these tools over the years, be it for new bulk materials, coatings or for surface modification. Several applications have benefited and many more will in the future as the properties of the materials are altered on a micro/nanoscale. Currently, several techniques exist to modify the physical, chemical and biological properties of the material surface; however, this review limits itself to surface modification applications using the rapid thermal processing (RTP) technique. First, a brief overview of the existing surface modification methods using the principles of RTP is reviewed, and then a novel method to create micro/nanostructures on the surface using pulsed plasma exposure of materials is presented.

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“…The possibility of application of pulsed energy to modify the near surface regions of technical materials attracts attention of many groups all over the world. Pulsed energy can be delivered to the surface of a given material by laser, electron, ion and plasma beams (Poate et al , 1981; Piekoszewski et al , 2001; Pereira et al , 2004; Guan et al , 2005; Sartowska et al , 2005; Yan et al , 2005). Thus far, the most advances being achieved using lasers as sources for high‐energy flows.…”

Section: Introductionmentioning

confidence: 99%

Surface morphology of unalloyed steels remelted with intense plasma pulses

Sartowska

Piekoşzewski

Waliś

et al. 2010

Journal of Microscopy

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SummaryThe set of unalloyed steels with various carbon concentrations were irradiated with intense plasma pulses with following process parameters: energy density 5 J cm −2 , pulse duration 2 μs, argon or nitrogen atmosphere. The energy density of each pulse was high enough to melt the surface layer of material. The cooling rate was estimated for 10 8 K s −1 using the modelling method which takes into account heat evolution in the iron sample. Samples were characterized using the scanning electron microscopy technique for remelted surface morphology investigations. The tests with profilometer allowed us to investigate the changes of roughness of the surface layers.

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Application of high intensity pulsed ion and plasma beams in modification of materials

Cited by 52 publications

References 22 publications

Structure and Composition of Scales Formed on AISI 316 L Steel Alloyed with Ce/La Using High Intensity Plasma Pulses after Oxidation in 1000°C

Structure and Composition of Scales Formed on AISI 316 L Steel Alloyed with Ce/La Using High Intensity Plasma Pulses after Oxidation in 1000°C

High-energy density beams and plasmas for micro- and nano-texturing of surfaces by rapid melting and solidification

Surface morphology of unalloyed steels remelted with intense plasma pulses

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