Haiko, O., Miettunen, I., Porter, D., Ojala, N., Ratia, V., Heino, V., & Kemppainen, A. (2017). Effect of finish rolling and quench stop temperatures on impact-abrasive wear resistance of 0.35 % carbon direct-quenched steel. Tribologia - Finnish Journal of Tribology, 35(1–2), 5–21. Retrieved from https://journal.fi/tribologia/article/view/59344
Effect of finish rolling and quench stop temperatures on impact-abrasive wear resistance of 0.35 % carbon direct-quenched steel
|Author:||Haiko, Oskari1; Miettunen, Ilkka1; Porter, David1;|
1University of Oulu, Faculty of Technology, Materials Engineering and Production Technology, POB 4200, 90014 Oulu, Finland
2Tampere University of Technology, Department of Materials Science, Tampere Wear Center, POB 589, 33101 Tampere, Finland
3SSAB Europe, POB 93, 92101 Raahe, Finland
|Online Access:||PDF Full Text (PDF, 2.6 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe202103258337
Finnish Society for Tribology,
|Publish Date:|| 2021-03-25
Novel high-hardness medium-carbon martensitic laboratory steel has been produced and tested for abrasive wear resistance. Different finish rolling temperatures (FRT) combined with either direct quenching (DQ) or interrupted quenching to 250 °C was applied to vary the content of retained austenite and hardness. The steel carbon content was set to 0.35 % to obtain a surface hardness of approximately 600 HB. Lowering the finish rolling temperature in the range 920–780 °C, i.e. into the non-recrystallization regime resulted in a more elongated prior austenite grain structure, which increased the hardness of the DQ variants without any significant loss of Charpy-V impact toughness. Although increasing the degree of autotempering by raising the quench stop temperature reduces the hardness of the martensitic microstructure, it was found that proper quenching stop temperature could be utilized to achieve balanced toughness and hardness properties. Impact-abrasive wear resistance as measured in impeller-tumbler tests with natural granite as the abrasive demonstrated that wear resistance increased with increasing surface hardness.
Tribologia. Finnish journal of tribology
|Pages:||5 - 21|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
216 Materials engineering
We gratefully acknowledge financial support from the Finnish Funding Agency for Technology and Innovation (Tekes) and the companies participating in the above programs. 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).
© 2017 The Author(s). This article has been published under a CC BY licence.