COMPARATIVE ANALYSIS OF NON-METALLIC INCLUSIONS IN LASER-WELDED CP AND TRIP STEELS

1 KOZŁOWSKA Aleksandra
Co-authors:
1 GRZEGORCZYK Barbara 2 KAMIŃSKA Małogorzata 3 RÓŻAŃSKI Maciej
Institutions:
1 Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Gliwice, Poland, EU, aleksandra.kozlowska@polsl.pl, barbara.grzegorczyk@polsl.pl
2 Institute of Non-Ferrous Metals, Gliwice, Poland, EU, malgorzata.kaminska@imn.gliwice.pl
3 Institute of Welding, Gliwice, Poland, EU, maciej.rozanski@is.gliwice.pl
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
622-627
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
83 views / 31 downloads
Abstract

In this study, the quantity, size and type of non-metallic inclusions occurring in laser welded transformation induced plasticity (TRIP) and complex phase (CP) steel joints were identified using SEM and EDS techniques. Both steels include Al, Ti, and Si additions which are characterized by high chemical affinity to oxygen. Microscopic observations of the fusion zones of the TRIP and CP steels showed that the quantity and size of inclusions formed in the CP steel were significantly lower than those observed in the fusion zone of TRIP steel. The presence of oxide-type non-metallic inclusions containing Al, Ti and Si has been primarily revealed.

Keywords: AHSS, TRIP steel, CP steel, non-metallic inclusions, laser welding

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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