Download e-book for kindle: Laser surface engineering : processes and applications by J Lawrence; D G Waugh; N Aoyagi

By J Lawrence; D G Waugh; N Aoyagi

ISBN-10: 1782420746

ISBN-13: 9781782420743

ISBN-10: 1782420797

ISBN-13: 9781782420798

Lasers can regulate the skin composition and homes of fabrics in a hugely controllable manner, which makes them effective and reasonable instruments for floor engineering. This booklet offers an outline of the various thoughts, the laser-material interactions and the benefits and downsides for various functions. half one seems at laser warmth remedy, half covers laser additive production comparable to laser-enhanced electroplating, and half 3 discusses laser micromachining, structuring and floor amendment. Chemical and organic functions of laser floor engineering are explored partially 4, together with how you can increase the skin corrosion homes of metals.

  • Provides an outline of thermal floor remedies utilizing lasers, together with the remedy of steels, mild steel alloys, polycrystalline silicon and technical ceramics
  • Addresses the advance of recent metal fabrics, options in laser cladding and direct steel deposition, and the fabrication of tuneable micro- and nano-scale floor structures
  • Chapters additionally conceal laser structuring, floor amendment, and the chemical and organic purposes of laser floor engineering

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Extra resources for Laser surface engineering : processes and applications

Sample text

Mater. Res. 15–17 (2007) 193–198. A. Dobrzanski, K. Labisz, M. J. Lela˛tko, A. Klimpel, Structure and properties of the 32CrMoV12-28 steel alloyed with WC powder using HPDL laser, Mater. Sci. Forum 530–531 (2006) 334–339. [18] S. ), Handbook of Laser Welding Technologies, In: Woodhead Publishing Series in Electronic and Optical Materials No. 41, June 2013. [19] N. Subhasisa, P. M. Jyotsna, Laser surface alloying of aluminium with WC + Co + NiCr for improved wear resistance, Surf. Coat. Technol.

The laser has been developed into a multiple-choice tool in this context. Meanwhile, it is well established that the irradiation of titanium, iron, and other metals with continuous wave (cw) or pulsed laser beams in a nitrogen atmosphere, in air or in other process gases such as CH4, leads to a take-up of nitrogen or carbon. The laser “gas” nitriding or carburizing effect has been demonstrated for various materials and for different laser systems where even the formation of stoichiometric TiN was reported [1].

As long as the strengthening is mainly caused by solid solution hardening of the nitrogen, the cavitation erosion resistance increases. But the development of structural inhomogeneities with increasing nitrogen content of the processing gas prevents a further improvement of cavitation wear resistance with strength. Especially, differences in strength between the metallic matrix and titanium nitrides lead to a selective erosion attack along the softer a- and b-Ti phases. As a result, the wear of harder phases is governed by the erosion of the softer phases and, therefore, the overall wear performance deteriorates.

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Laser surface engineering : processes and applications by J Lawrence; D G Waugh; N Aoyagi


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