Microstructural Characterization and Mechanical Properties of Austempered Ductile Iron at Different Austempering Temperatures

DOI

10.2991/978-94-6463-134-0_12How to use a DOI?

Keywords

Austempered; Iron; temperature

Abstract

This study investigated the effect of austempering temperature on the microstructure and mechanical properties of austempered ductile iron (ADI). Samples for this experiment were taken from ductile cast iron Y-block. Then they were austenitized to a temperature of 900 ℃ in an induction furnace for 90 min. Furthermore, they were quenched into a salt bath at 300 ℃ and 400 ℃, respectively. Austempering time of 90 min in the salt bath was maintained for each austempering temperature. Microstructure observation and mechanical tests were performed on the as-cast and austempered treatment samples at different temperatures. The optical microscope was used to characterize the microstructure of ductile cast iron after austempering. The microstructure was evaluated on the samples with etched and non-etched surface conditions. Hardness, tensile and impact tests were performed to obtain their mechanical properties. The observation results revealed that ADI’s microstructures, hardness, tensile strength, and toughness strongly depended on applied austempering temperature parameters. The austempering treatment significantly improved the mechanical properties of ductile cast iron. Higher strength and toughness were observed at the austempering temperature of 300 ℃ compared to austempering at 400 ℃.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Herry Oktadinata
AU  - Toto Triantoro
AU  - Isal Ardiansyah
PY  - 2023
DA  - 2023/04/19
TI  - Microstructural Characterization and Mechanical Properties of Austempered Ductile Iron at Different Austempering Temperatures
BT  - Proceedings of the 6th Mechanical Engineering, Science and Technology International conference (MEST 2022)
PB  - Atlantis Press
SP  - 114
EP  - 121
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-134-0_12
DO  - 10.2991/978-94-6463-134-0_12
ID  - Oktadinata2023
ER  -