Effect of deep cryogenic treatment on dilatometric curve and tribological properties of high speed steel

Cajner, Franjo and Landek, Darko and Rafael, Hrvoje and Šolić, Sanja and Kovačić, Saša (2012) Effect of deep cryogenic treatment on dilatometric curve and tribological properties of high speed steel. = Effect of deep cryogenic treatment on dilatometric curve and tribological properties of high speed steel. International Heat Treatment and Surface Engineering, 6 (2). pp. 67-71. ISSN 1749-5148. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. . Točan broj autora: 5.

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Official URL: http://www.tandfonline.com/doi/abs/10.1179/1749514...

Abstract

Advantages of deep cryogenic treatment (DCT) over the standard heat treatment of high speed steels for the purpose of obtaining better properties are quoted in an increasing number of scientific papers to be found in literature. This paper deals with the improvements in high speed steel properties achieved by using DCT on test samples made of PM S390 MC high speed steel. The effect of DCT on the dilatometric curve during tempering and on the abrasive and the erosion wear resistance has been investigated and compared with results obtained from a set of test samples made of the same steel heat treated by the conventional method (hardened and three times high temperature tempered). Dilatometric tests confirmed the existence of common processes in tempering, which depend on the initial state of steel (only quenched, and quenched and deep cryogenically treated). These tests showed that the DCT had not completely eliminated the residual austenite, particularly in the case of the highest austenisation temperature. The tribiological results obtained confirm that the application of DCT results in significantly improved erosive wear resistance, while the abrasive wear resistance depends on the temperature of austenisation used. © 2012 IHTSE Partnership.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Common process; Conventional methods; Deep cryogenic treatment; Dilatometric curves; Dilatometric tests; Erosion wear resistance; High temperature; High-speed steels; Initial state; Residual austenite; Scientific papers; Test samples; Tribological properties; Abrasion; Cryogenics; Erosion; Speed; Tempering; Wear resistance
Subjects: TECHNICAL SCIENCE
Divisions: 1000 Department of Materials > 1020 Chair of Heat Treatment and Surface Engineering
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 28 Apr 2015 09:59
Last Modified: 08 Mar 2016 14:07
URI: http://repozitorij.fsb.hr/id/eprint/3951

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