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1996 | 89 | 2 | 171-182
Article title

Laser Microstructure Modification of Metallic Materials

Content
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Languages of publication
EN
Abstracts
EN
Structure changes in laser constituted surface layers of aluminium alloys of the systems: Al-Zn, Al-Fe, Al-Fe-Ni, Al-Si were examined. Significant structure refinements and even formation of characteristic precipitates for rapidly quenched microstructure were found. Fine martensitic microstructure was observed in constructional steels of the types: X45CrSi92 (H9S2) and C50 (50G) subject to a laser modification. The study of influence of the chemical composition on the solidification structure and hardness was carried out on a steel 45, as well as on a high speed steel M2 (SW7M), by laser alloying using carbides of the types: VC, Mo_{2}C and the borides of the types: CrB, VB_{2}, B_{4}C. Thermodynamic calculations of phase diagrams were made to predict the changes of the constitution due to laser alloying. A comparison of the solidification structures and the calculated phase diagrams revealed a good agreement, especially for carbides. Boride alloying led to very complex microstructures consisting of various metallic and intermetallic phases.
Keywords
EN
Publisher

Year
Volume
89
Issue
2
Pages
171-182
Physical description
Dates
published
1996-02
Contributors
author
  • Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, 30-059 Kraków, Poland
author
  • Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, 30-059 Kraków, Poland
author
  • Christian Doppler Laboratory for "Laser Application in Materials Research" at the Institute for Metals Technology and Materials Testing, Montanuniversity Leoben, Austria
author
  • Christian Doppler Laboratory for "Laser Application in Materials Research" at the Institute for Metals Technology and Materials Testing, Montanuniversity Leoben, Austria
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv89z206kz
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