Akademik Veri Yönetim Sistemi
4th International Conference on Materials Processing and Characterzation (ICMPC), Hyderabad, Pakistan, 14 Mart 2015, ss.1901-1906, (Tam Metin Bildiri)
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 D2 type 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 (similar to 850-1100 degrees 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 is to 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. (C) 2015 Elsevier Ltd. All rights reserved.