TY - GEN
T1 - Effect of austenitizing temperature on microstructure, amount of retained austenite, and hardness of AISI O1 tool steel
AU - Hermawan, Fajar Herfanola
AU - Mochtar, Myrna Ariati
N1 - Publisher Copyright:
© 2024 Author(s).
PY - 2024/2/6
Y1 - 2024/2/6
N2 - The effect of austenitizing temperature on microstructure, amount of retained austenite, and hardness of AISI O1 were studied in the present work. This research is focused on determining the most optimal austenization temperature where the less amount of residual austenite in AISI O1 steel material while maintaining the high hardness of AISI O1 steel material. Austenitizing temperature variations are 750, 800, 850, 900, and 950°C. Increased austenitizing temperatures cause the number of dissolved carbides to increase, the number of retained austenite (γr) is increasing in the As Quenched sample (γr 1.57% - 7.46%) as well as the As Tempered sample (γr 1.23% - 5.66%), and the martensite phase becomes coarser. Increased austenitizing temperatures led to an increase in the hardness value of As Quenched and As Tempered samples at 750°C - 800°C and decreased hardness values at 800°C - 950°C due to the effect of carbon and alloy content in the matrix, which would increase the hardness and the amount of retained austenite & grain size which would decreasing the hardness. There was no significant influence between the As Quenched sample and the As Tempered sample on the microstructure, the amount of retained austenite, and the hardness value. The most optimal austenitizing temperature is found in the variable 800oC where the sample as Quenched and As Tempered respectively have a value of 4,62% and 3,84% with a hardness value of 756,6 HB and 685,52 HB.
AB - The effect of austenitizing temperature on microstructure, amount of retained austenite, and hardness of AISI O1 were studied in the present work. This research is focused on determining the most optimal austenization temperature where the less amount of residual austenite in AISI O1 steel material while maintaining the high hardness of AISI O1 steel material. Austenitizing temperature variations are 750, 800, 850, 900, and 950°C. Increased austenitizing temperatures cause the number of dissolved carbides to increase, the number of retained austenite (γr) is increasing in the As Quenched sample (γr 1.57% - 7.46%) as well as the As Tempered sample (γr 1.23% - 5.66%), and the martensite phase becomes coarser. Increased austenitizing temperatures led to an increase in the hardness value of As Quenched and As Tempered samples at 750°C - 800°C and decreased hardness values at 800°C - 950°C due to the effect of carbon and alloy content in the matrix, which would increase the hardness and the amount of retained austenite & grain size which would decreasing the hardness. There was no significant influence between the As Quenched sample and the As Tempered sample on the microstructure, the amount of retained austenite, and the hardness value. The most optimal austenitizing temperature is found in the variable 800oC where the sample as Quenched and As Tempered respectively have a value of 4,62% and 3,84% with a hardness value of 756,6 HB and 685,52 HB.
UR - http://www.scopus.com/inward/record.url?scp=85185781979&partnerID=8YFLogxK
U2 - 10.1063/5.0167139
DO - 10.1063/5.0167139
M3 - Conference contribution
AN - SCOPUS:85185781979
T3 - AIP Conference Proceedings
BT - AIP Conference Proceedings
A2 - Kusuma, Andyka
A2 - Fatriansyah, Jaka Fajar
A2 - Dhelika, Radon
A2 - Pratama, Mochamad Adhiraga
A2 - Irwansyah, Ridho
A2 - Maknun, Imam Jauhari
A2 - Putra, Wahyuaji Narottama
A2 - Ardi, Romadhani
A2 - Harwahyu, Ruki
A2 - Harahap, Yulia Nurliani
A2 - Lischer, Kenny
PB - American Institute of Physics Inc.
T2 - 17th International Conference on Quality in Research, QiR 2021 in conjunction with the International Tropical Renewable Energy Conference 2021, I-Trec 2021 and the 2nd AUN-SCUD International Conference, CAIC-SIUD
Y2 - 13 October 2021 through 15 October 2021
ER -