Chair of Materials and Surface Engineering
Materials and Surface Engineering
Chair of Materials and Surface Engineering 

Chemnitz scientists conduct research on novel surface treatments of high entropy alloys


Scientists led by Dr Thomas Lindner have been working on the class of materials known as high-entropy alloys (HEA) for several years. Their latest publication on the topic of „Surface hardening of FCC phase high-entropy alloy system by powder-pack boriding” in the journal Surface and Coatings Technology is one of the most downloaded articles in this journal.

With this, the working group once again sets an example for outstanding and innovative research work at the WOT Materials and Surface Engineering Chair headed by Professor Thomas Lampke.

Modifying the surface of HEA by boronising significantly increases the hardness and wear resistance of the investigated single-phase HEA. Due to the enrichment of boron in the edge zone, a silicon-boron double layer with strength-increasing precipitates is formed. The understanding gained of the material behaviour of thermomechanically treated HEA should open up new areas of application for this class of materials under tribological stress.

Together with other scientists from the faculties of mechanical engineering, mathematics and natural sciences, the ESF junior research group „HEA-SurfProtect“ has been successfully recruited, thereby perpetuating the research activity on the topic of „High entropy alloys as coating materials for surface protection applications“ under the leadership of the WOT professorship. The funding from the European Social Fund (ESF) and the state of Saxony covers the period 01.01.2020 to 31.12.2022.

Image:
Screenshot of the Surface and Coatings Technology magazine website from 23 January 2020

24.2.2020 – Projects of the professorship ( )

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