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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 17, Iss. 6 — Mar. 15, 1978
  • pp: 906–910

Characteristics of laser surface melted aluminum alloys

L. S. Weinman, C. Kim, T. R. Tucker, and E. A. Metzbower  »View Author Affiliations


Applied Optics, Vol. 17, Issue 6, pp. 906-910 (1978)
http://dx.doi.org/10.1364/AO.17.000906


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Abstract

Specimens of Al–Fe 1–4 w/o, 2024 and 6061 Al have been surface melted with a pulsed Nd-glass laser. A TEM and SEM study showed that the dendrite spacings were from 2500 Å to 4000 Å which corresponds to a cooling rate of over 106 °C/sec. Melt depths obtained were in the range of 30–100 μm. No significant surface vaporization was observed at energy densities up to 440 J/cm2. Fracture surfaces of the commerical alloys demonstrated elongated porosity in the melt areas, probably due to internal hydrogen.

© 1978 Optical Society of America

History
Original Manuscript: June 3, 1977
Published: March 15, 1978

Citation
L. S. Weinman, C. Kim, T. R. Tucker, and E. A. Metzbower, "Characteristics of laser surface melted aluminum alloys," Appl. Opt. 17, 906-910 (1978)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-17-6-906


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References

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