Enhancement on the Tool Steel’s Surface Properties by Eta Carbide Distribution Mechanism of Cryogenic Treatment
| Autor: | Esad Kaya, Mustafa Ulutan, Koray Kılıçay |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Austenite Materials science Abrasive 0211 other engineering and technologies 02 engineering and technology engineering.material Tribology 01 natural sciences Carbide Fracture toughness 0103 physical sciences Tool steel Volume fraction engineering Cryogenic treatment Composite material 021102 mining & metallurgy |
| Zdroj: | Transactions of the Indian Institute of Metals. 73:2673-2682 |
| ISSN: | 0975-1645 0972-2815 |
| DOI: | 10.1007/s12666-020-02073-w |
| Popis: | In this study, the effect of cryogenic treatment on microstructural, mechanical, and tribological properties of AISI L2 steel was investigated. Heat treatment processes conducted were, as directly quenched (C), quenched tempered (CT), and quenched cryogenically treated (CC), and the last group (CCT) was additively tempered. The volume fraction of retained austenite, the percentage of carbide density, hardness, empiric fracture toughness, the coefficient of friction (COF), and adhesive/abrasive wear resistance were determined according to the relevant standards. The retained austenite ratio decreased for the CCT process which also reduced the distance between carbides, and it increased the carbide density. A drastic improvement was observed in the tribological behavior of CC and CCT samples. CCT process increased the operational service life of steel in mold making applications due to high adhesive wear resistance, while the CC process provided the best solution for cold cutting operations due to the highest abrasive wear resistance. |
| Databáze: | OpenAIRE |
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