Effect of single and double austenitization treatments on the microstructure and hardness of AISI D2 tool steel

Salunkhe, S., Fabijanic, D., Nayak, J. and Hodgson, P. 2015, Effect of single and double austenitization treatments on the microstructure and hardness of AISI D2 tool steel, in ICMPC 2015: Proceedings of 4th International Conference on Materials Processing and Characterzation, Elsevier, Amsterdam, The Netherlands, pp. 1901-1906, doi: 10.1016/j.matpr.2015.07.145.

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Title Effect of single and double austenitization treatments on the microstructure and hardness of AISI D2 tool steel
Author(s) Salunkhe, S.
Fabijanic, D.ORCID iD for Fabijanic, D. orcid.org/0000-0003-4857-0398
Nayak, J.
Hodgson, P.
Conference name Materials Processing and Characterzation. Conference (4th: 2015: Hyderabad, India)
Conference location Hyderabad, India
Conference dates 14-15 Mar. 2015
Title of proceedings ICMPC 2015: Proceedings of 4th International Conference on Materials Processing and Characterzation
Publication date 2015
Conference series Materials Today: Proceedings v2 (4-5)
Start page 1901
End page 1906
Total pages 6
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Keyword(s) AISI D2
double austenitization
Prior austenite grain size
MECHANICAL-PROPERTIES
HEAT-TREATMENT
TOUGHNESS
Summary This investigation is concerned with the study of effect of Double Austenitization (DA) and Single Austenitization (SA) heat treatment processes on microstructure and mechanical property of AISI D2type cold worked tool steel. To maximize hardness, tool steels are used in a quenched and tempered condition. This involves heating the material to the austenitizing temperature (~850-1100. °C), quenching at an appropriate rate to form martensite, and tempering to reduce the retained austenite content and induce toughness. The merits of DA treatment isto promote dissolution of carbides at the same time proscribe grain coarsening significantly was attempted in D2 tool steel. The study has found that DA treatment has induced high hardness with insignificant growth in grains. The increase in hardness is attributed to increase in carbon content in matrix due to dissolution of carbides; whereas finer grains due to role of inclusions.
ISSN 2214-7853
Language eng
DOI 10.1016/j.matpr.2015.07.145
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category E1 Full written paper - refereed
ERA Research output type E Conference publication
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30082511

Document type: Conference Paper
Collection: Institute for Frontier Materials
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