Franc Zupanič (Author), Tonica Bončina (Author), Davor Pipić (Author), Višnja Henč-Bartolič (Author)

Abstract

Površino zlitine Cu-Sn-Zn-Pb smo obsevali z laserskimi impulzi dušikovega laserja (valovna dolžina 337 nm). Pri tem sta se spremenila tako topografija površine kot tudi mikrostruktura pod njo. Ker je s klasičnimi metalografskimi metodami zelo težko primerno pripraviti obsevano površino za mikroskopsko opazovanje, smo kot temeljno orodje za metalografsko preiskavo uporabili fokusirani ionski curek (FIB), kajti FIB lahko odstranjuje material na specifičnih mestih v mikro- in nanoobmočju in odkrije mikrostrukturo brez prejšnje metalografske priprave. To nam je omogočilo, da smo raziskali vpliv obsevanja z laserjem na spremembo oblike površine, ugotovili profil kraterjev ter mikrostrukturne spremembe v območju toplotnega vpliva.

Keywords

laserska ablacija;bakrova zlitina;fokusiran ionski curek;mikrostruktura;topografija površine;

Data

Language: Slovenian
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: Inštitut za kovinske materiale in tehnologije Ljubljana
UDC: 669.35:620.179.1
COBISS: 11827734 Link will open in a new window
ISSN: 1580-2949
Views: 992
Downloads: 102
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Other data

Secondary language: English
Secondary title: Surface of Cu-Sn-Zn-Pb alloy irradiated with ultraviolet nitrogen laser
Secondary abstract: Surface of a Cu-Sn-Zn-Pb alloy was irradiated by ultraviolet nitrogen laser pulses (wavelength 337 nm). As a result both surface topography and microstructure beneath the surface changed. Since it is very difficult to adequately prepare the damaged regions for microscopical observations using classical metallographic methods, we used a focussed ion beam (FIB) as the main tool for microstructural characterisation. Namely, FIB can remove material at specific sites in micro- and nanoregions and reveal microstructure without any previous metallographic preparation. This allowed us to investigate the influence of laser pulses on change of surface topography and subsurface microstructure.
Secondary keywords: laser ablation;copper alloy;focussed ion beam;microstructure;surface topography;
URN: URN:NBN:SI
Type (COBISS): Scientific work
Pages: str. 243-247
Volume: ǂVol. ǂ41
Issue: ǂšt. ǂ5
Chronology: 2007
ID: 1738865