Microstructure and Hardness of Cold Work Vanadis 6 Steel after Subzero Treatment at −140°C
Joint Authors
Ďurica, Juraj
Ptačinová, Jana
Hudáková, Mária
Kusý, Martin
Jurči, Peter
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-04
Country of Publication
Egypt
No. of Pages
7
Abstract EN
The microstructure, phase constitution, and hardness of Cr-V ledeburitic tool steel Vanadis 6 subjected to subzero treatment at −140°C and for different soaking times have been investigated.
The light microscopy, scanning electron microscopy, and X-ray diffraction have been used for microstructural investigations.
The hardness has been evaluated by the Vickers method.
The obtained results assist to draw that subzero treatment reduces the retained austenite amount and increases the population density of carbides, compared to conventional heat treatment.
The extent of decrease in the retained austenite amount makes around 85%, and the increase in population density of small globular carbides was approximately fivefold.
High compressive stresses were identified in the retained austenite, and their values follow the increase in carbide count.
This makes a serious support to the theory explaining the formation of “extra” carbides as a by-product of more complete martensitic transformation.
As a result of the mentioned microstructural changes, the material hardness increased from 875 ± 16 HV 10 up to 954.6 ± 14 HV 10 for conventionally quenched and SZT steels, respectively.
American Psychological Association (APA)
Ďurica, Juraj& Ptačinová, Jana& Hudáková, Mária& Kusý, Martin& Jurči, Peter. 2018. Microstructure and Hardness of Cold Work Vanadis 6 Steel after Subzero Treatment at −140°C. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1121431
Modern Language Association (MLA)
Ďurica, Juraj…[et al.]. Microstructure and Hardness of Cold Work Vanadis 6 Steel after Subzero Treatment at −140°C. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1121431
American Medical Association (AMA)
Ďurica, Juraj& Ptačinová, Jana& Hudáková, Mária& Kusý, Martin& Jurči, Peter. Microstructure and Hardness of Cold Work Vanadis 6 Steel after Subzero Treatment at −140°C. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1121431
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121431