TY - JOUR
T1 - A comparative investigation of different overlaps of the diode laser hardening in low-Carbon steel and stainless steel
AU - Karamimoghadam, Mojtaba
AU - Moradi, Mahmoud
AU - Azami, Mohammad
PY - 2022/2/1
Y1 - 2022/2/1
N2 - In this paper, the effect of laser overlap on the low-carbon and stainless steel are investigated. The analyzed samples are made of AISI 4130 low-Carbon steel and AISI 410 stainless steel with 50% overlap. The used laser is an industrial high-power diode laser with a continuous wave and a maximum power of 2kW. Samples are fabricated using optimized levels for laser power, focal plane position, and laser scanning speed, and the heat-treatment process is done after that. The parameters and conditions for the laser hardening process of both samples are the same situation. Then, the microstructure analysis is done using OM and SEM. Besides, the hardness of the samples is tested in the hardening depth and width. The study shows that the hardness is improved for both samples at the overlap area, up to 762 hv for AISI 4130 and 675 hv for AISI 410. Also, in both samples the amount of ferrite phase has decreased.
AB - In this paper, the effect of laser overlap on the low-carbon and stainless steel are investigated. The analyzed samples are made of AISI 4130 low-Carbon steel and AISI 410 stainless steel with 50% overlap. The used laser is an industrial high-power diode laser with a continuous wave and a maximum power of 2kW. Samples are fabricated using optimized levels for laser power, focal plane position, and laser scanning speed, and the heat-treatment process is done after that. The parameters and conditions for the laser hardening process of both samples are the same situation. Then, the microstructure analysis is done using OM and SEM. Besides, the hardness of the samples is tested in the hardening depth and width. The study shows that the hardness is improved for both samples at the overlap area, up to 762 hv for AISI 4130 and 675 hv for AISI 410. Also, in both samples the amount of ferrite phase has decreased.
KW - laser surface transformation hardening
KW - Diode laser
KW - Heat treatment
KW - low-Carbon steel
KW - stainless steel
KW - Ferrite phase
UR - https://pureportal.coventry.ac.uk/en/publications/a-comparative-investigation-of-different-overlaps-of-the-diode-laser-hardening-in-lowcarbon-steel-and-stainless-steel(793665f6-5337-44a0-a0f8-d6b2a85d6081).html
U2 - 10.1016/j.ijleo.2021.168093
DO - 10.1016/j.ijleo.2021.168093
M3 - Article
SN - 0030-4026
VL - 251
JO - Optik
JF - Optik
M1 - 168093
ER -