University of Oulu

Oskari Haiko, Kati Valtonen, Antti Kaijalainen, Sampo Uusikallio, Jaakko Hannula, Tommi Liimatainen, Jukka Kömi, Effect of tempering on the impact-abrasive and abrasive wear resistance of ultra-high strength steels, Wear, Volumes 440–441, 2019, 203098, ISSN 0043-1648, https://doi.org/10.1016/j.wear.2019.203098

Effect of tempering on the impact-abrasive and abrasive wear resistance of ultra-high strength steels

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Author: Haiko, Oskari1; Valtonen, Kati2; Kaijalainen, Antti1;
Organizations: 1Materials and Mechanical Engineering, Centre for Advanced Steels Research, University of Oulu, Finland
2Materials Science and Environmental Engineering, Tampere Wear Center, Tampere University, Finland
3SSAB Europe, Raahe Works, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe202002044537
Language: English
Published: Elsevier, 2019
Publish Date: 2021-10-23
Description:

Abstract

Tempering is an essential part in the fabrication of ultra-high strength steels and it is also widely applied in the processing of wear-resistant steels. In this paper, the effects of different tempering temperatures on the impact-abrasive and abrasive wear properties of martensitic ultra-high strength steels were studied. A novel press-hardening steel with carbon content of 0.4 wt% was received in hot-rolled condition and further austenitized, water-quenched and tempered for 2 h at different temperatures (150–400 °C). Tensile strength values up to 2200MPa and hardness exceeding 650HV were measured. Wear testing was done with impact-abrasive impeller-tumbler and abrasive dry-pot application-oriented test methods simulating mining and mineral handling environments. A laboratory rolled 600HB steel and a commercial 500HB grade wear-resistant steel were included for comparison. The wear surfaces and cross-sections of the samples were thoroughly characterized. Both testing methods produced highly deformed surface layers and strong work-hardening. Wear performance was mainly controlled by the initial hardness of the steels, but differences were found in the highly work-hardened surfaces of the steels.

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Series: Wear. An international journal on the science and technology of friction, lubrication and wear
ISSN: 0043-1648
ISSN-E: 1873-2577
ISSN-L: 0043-1648
Volume: 440–441
Article number: 203098
DOI: 10.1016/j.wear.2019.203098
OADOI: https://oadoi.org/10.1016/j.wear.2019.203098
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Subjects:
Funding: This research has been done within the program Steel Ecosystem for Focused Applications (StEFA). We gratefully acknowledge financial support from Business Finland and the companies participating in the program. The corresponding author would also like to express his gratitude for the support provided by the University of Oulu Graduate School through the Advanced Materials Doctoral Program (ADMA-DP). Jenny and Antti Wihuri Foundation, Tauno Tönning Foundation and Walter Ahlström Foundation are also acknowledged for their financial support to the corresponding author.
Copyright information: © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
  https://creativecommons.org/licenses/by-nc-nd/4.0/