Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Laser-surface-alloying of the iron based superalloy Incoloy-800H with Al (1996)
    Springer
    Applied physics 63 (1996), S. 461-465 
    Details
    ISSN: 1432-0630
    Keywords: 81.65 ; 42.70.H ; 81.05.Bx
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Laser surface alloying by the powder feed method of the iron based superalloy Incoloy 800H with aluminium has been carried out. The effects of different preparation parameters, like laser scan speed and powder feed rate, on the morphology of the alloyed zone have been investigated. Microstructure and composition have been determined by scanning electron microscopy (SEM), optical microscopy, and x-ray fluorescence spectroscopy. Three different phases with different Al-content have been distinguished. The observed Al-enrichment at the surface, the presence of Ni-Al and Fe-Al intermetallic compounds, and the considerable grain refining of the alloyed zone with respect to the substrate, make this surface modification technique a very good method to improve the corrosion behaviour of the Incoloy 800H super-alloy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01571674
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    X-ray absorption spectroscopy study of pulsed-laser-evaporated amorphous carbon films (1995)
    Springer
    Applied physics 61 (1995), S. 111-114 
    Details
    ISSN: 1432-0630
    Keywords: 81.15.Fg ; 68.55.Nq ; 71.25.Mg ; 82.65.My
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Amorphous carbon (a-C) films obtained by pulsed-laser ablation of graphite have been investigated by X-ray Absorption Spectroscopy (XAS). The onset of 1s →σ * transitions in the films lies in the gap between theπ * andσ * bands in graphite and very close to the absorption edge of diamond, indicating a high content ofsp 3 hybridization. A sharp feature at this onset is observed and assigned to a core exciton insp 3-hybridized disordered C atoms. Its shift of 0.5 eV with respect to the core exciton in diamond is probably due to a higher localization of the excited electron induced by disorder. A small peak coming from C−H bonds at the surface is observed and its intensity inereases with the amount ofsp 3-hybridized atoms in the sample. This can be easily explained by associating a higher amount of dangling bonds at the surface to a highersp 3 content. Polarization-dependent XAS measurements show that the angular distribution of these C−H bonds has a mean value close to the normal to the surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01538374
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...