Laser micro-processing of amorphous and partially crystalline Cu 45Zr48Al7 alloy

S. N. Aqida, D. Brabazon, S. Naher, Z. Kovács, D. J. Browne

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This paper presents a microstructural study of laser micro-processed high-purity Cu45Zr48Al7 alloys prepared by arc melting and Cu-mould casting. Microprocessing of the Cu45Zr 48Al7 alloy was performed using a Rofin DC-015 diffusion-cooled CO2 slab laser system with 10.6-μm wavelength. The laser was defocused to a spot size of 0.2 mm on the sample surface. The laser parameters were set to give 300- and 350-W peak power, 30% duty cycle and a 3000-Hz laser pulse repetition frequency (PRF). About 100-micrometer-wide channels were scribed on the surfaces of disk-shaped amorphous and partially crystalline samples at traverse speeds of 500 and 5000 mm/min. These channels were analysed using scanning electron microscopy (SEM) and 2D stylus profilometry. The metallographic study and profile of these processed regions are discussed in terms of the applied laser processing parameters. The SEM micrographs showed that striation marks developed at the edge and inside these regions as a result of the laser processing. The results from this work showed that microscale features can be produced on the surface of amorphous Cu-Zr-Al alloys by CO2 laser processing.

Original languageEnglish
Pages (from-to)357-360
Number of pages4
JournalApplied Physics A: Materials Science and Processing
Volume101
Issue number2
DOIs
Publication statusPublished - Nov 2010

Fingerprint

Crystalline materials
Lasers
Processing
lasers
Scanning electron microscopy
Profilometry
arc melting
scanning electron microscopy
striation
Laser pulses
microbalances
Casting
Melting
micrometers
repetition
purity
slabs
Wavelength
cycles
profiles

ASJC Scopus subject areas

  • Materials Science(all)
  • Chemistry(all)

Cite this

Laser micro-processing of amorphous and partially crystalline Cu 45Zr48Al7 alloy. / Aqida, S. N.; Brabazon, D.; Naher, S.; Kovács, Z.; Browne, D. J.

In: Applied Physics A: Materials Science and Processing, Vol. 101, No. 2, 11.2010, p. 357-360.

Research output: Contribution to journalArticle

Aqida, S. N. ; Brabazon, D. ; Naher, S. ; Kovács, Z. ; Browne, D. J. / Laser micro-processing of amorphous and partially crystalline Cu 45Zr48Al7 alloy. In: Applied Physics A: Materials Science and Processing. 2010 ; Vol. 101, No. 2. pp. 357-360.
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