Open AccessThe Influence of Carbon Particle Size in The Carburizing Process of ST-40 Steel to The Surface Hardness
Author(s) -
Ngafwan,
Agus Dwi Anggonor,
Wibi Pramanda,
Purnomo Purnomo
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1858/1/012026
Subject(s) - carburizing , metallurgy , materials science , microstructure , hardness , carbon fibers , solubility , particle size , raw material , particle (ecology) , carbon steel , composite material , chemical engineering , chemistry , corrosion , oceanography , organic chemistry , composite number , engineering , geology
This research aimed to determine the changes in the microstructure that occurred and changes in the hardness value of the steel surface. This research uses ST 40 steel and carbon powder with an average area of carbon particles 115,103 µm 2 and 515,735 µm 2 . Steel and carbon were put in a closed container and heated at 780oC for 4 hours. After the carburizing process, the particle area was reduced to 110,051 µm 2 and 440, 058 µm 2 . Raw material yields an average solubility of elements in Fe ( β %) 5.99%. The solubility of the carburizing material element is higher in the smaller carbon grains. Likewise, the result of surface hardness after the carburizing process is harder by using small carbon granules.