Laser Microstructure Modification of Metallic Materials

• Authors: B. Major , R. Ciach , R. Ebner , F. Jeglitsch
• 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

52.50.Jm; 64.70.Dv

Discipline

• 52.50.Jm: Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 89
• Issue: 2
• Pages: 171-182

Dates

published

1996-02

Contributors

author

B. Major

• Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, 30-059 Kraków, Poland

author

R. Ciach

• Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, 30-059 Kraków, Poland

author

R. Ebner

• Christian Doppler Laboratory for "Laser Application in Materials Research" at the Institute for Metals Technology and Materials Testing, Montanuniversity Leoben, Austria

author

F. Jeglitsch

• Christian Doppler Laboratory for "Laser Application in Materials Research" at the Institute for Metals Technology and Materials Testing, Montanuniversity Leoben, Austria

Identifiers

DOI

10.12693/APhysPolA.89.171