MICROSTRUCTURE EVOLUTION AND HARDNESS IMPROVEMENT OF GRAY CAST IRON BY ADDITION OF FeSiMg FOLLOWED BY FLAME HARDENING PROCESS
Agung Setyo Darmawan,
Agus Dwi Anggono,
Agus Yulianto
et al.
Abstract:The addition of magnesium alloy elements followed by a flame-hardening process will change the phase configuration in gray cast iron. This study aims to investigate changes in microstructure and hardness due to these two processes. The addition of magnesium is conducted by adding FeSiMg as a carrier for magnesium. Metallographic examination to observe changes in microstructure was carried out using a Scanning Electron Microscope (SEM) and Energy-Dispersive X-ray Spectroscopy (EDS). The formed phase is examined… Show more
“…The fire hardening process of nodular cast iron results in the formation of a martensite phase and removes graphite from the surface of the material. The surface hardness of the material after fire hardening increased by 82.4% compared to the original substrate [4]. To meet specific quality standards, the surface roughness of ST-37 steel plates also needs to be considered.…”
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
“…The fire hardening process of nodular cast iron results in the formation of a martensite phase and removes graphite from the surface of the material. The surface hardness of the material after fire hardening increased by 82.4% compared to the original substrate [4]. To meet specific quality standards, the surface roughness of ST-37 steel plates also needs to be considered.…”
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
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