RENOVATION OF HIGH SPEED STEEL BY PTA HARDFACING

1 ROHAN Pavel
Co-authors:
1 KRAMÁR Tomáš 1 KOVANDA Karel 1 KUŘÍK Martin 1 KRUM Stanislav 1 FOREJTOVÁ Lucie
Institution:
1 CTU in Prague, Faculty of Mechanical Engineering, Techická 4, Praha 6, Czech Republic, EU
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
1164-1170
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
15 views / 6 downloads
Abstract

Failure and wear of tools made of high speed steel (HSS) is a common cause of production slowdowns or interruptions. Renovation of structures made of high-speed tool steel can significantly reduce production costs and time needed for resumption of production. The Tool steel of HSS 23 type (M3/2, PMHS6-5-3C) was cladded on substrate of the same type of steel and heat-treated. The influence of hardfacing parameters on both macro- and microstructures was studied by light and electron microscopy. Development of hardness from substrate to deposit was measured by Vickers method. Metallurgical bond between parent material and deposit was created. The deposits are free of cracks

Keywords: Pulsed PTA, PTA hardfacing, High Speed Steel, Microhardness, renovation
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