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Effect of single and double austenitization treatments on the microstructure and hardness of AISI D2 tool steel
conference contribution
posted on 2015-01-01, 00:00 authored by S Salunkhe, Daniel FabijanicDaniel Fabijanic, J Nayak, Peter HodgsonPeter HodgsonThis 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.
History
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Materials Processing and Characterzation. Conference (4th: 2015: Hyderabad, India)Volume
2Issue
4-5Pagination
1901 - 1906Publisher
ElsevierLocation
Hyderabad, IndiaPlace of publication
Amsterdam, The NetherlandsPublisher DOI
Start date
2015-03-14End date
2015-03-15eISSN
2214-7853Language
engPublication classification
E Conference publication; E1 Full written paper - refereedCopyright notice
2015, ElsevierTitle of proceedings
ICMPC 2015: Proceedings of 4th International Conference on Materials Processing and CharacterzationUsage metrics
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