Optimization of the condition of laser alloying of the silver surface layer

Ryszard Pawlak

doi:10.1117/12.203268

1 March 1995 Optimization of the condition of laser alloying of the silver surface layer

Ryszard Pawlak

Proceedings Volume 2202, Laser Technology IV: Research Trends, Instrumentation, and Applications in Metrology and Materials Processing; (1995) https://doi.org/10.1117/12.203268
Event: Laser Technology: Fourth Symposium, 1993, Szczecin, Poland

Abstract

The alloying of the metal surface layer using a pulsed laser is a rather complex process. It is necessary to develop technological conditions for each pair of metals: base-alloying material. The paper presents the results of investigations into this problem for silver as a base metal and for nickel and tin as alloying materials. Studies on the laser alloying of the surface layer of Ag aim at improving its functional qualities from the viewpoint of use of Ag as a material for electrical contacts. This defines desirable properties of the modified surface layer: a uniform depth of about 100 micrometers and structural homogeneity at a set percentage variable of alloying material content. The results of previous studies allowed determination of a set of technological parameters necessary for producing a layer of an appropriate, uniform depth (duration and energy of a pulse and coefficient of coverage characterizing the degree of overlapping of successive areas of action). The two remaining requirements can be satisfied owing to the use of special methods--multiple treatment of the sole layer or multiple pulse action on particular areas of the surface under treatment.

Citation Download Citation

Ryszard Pawlak "Optimization of the condition of laser alloying of the silver surface layer", Proc. SPIE 2202, Laser Technology IV: Research Trends, Instrumentation, and Applications in Metrology and Materials Processing, (1 March 1995); https://doi.org/10.1117/12.203268

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