A comparative study of laser surface hardening of AISI 410 and 420 martensitic stainless steels by using diode laser

Mahmoud Moradi; Hossein Arabi; Saied Jamshidi Nasab; Khaled Y. Benyounis

doi:10.1016/j.optlastec.2018.10.013

A comparative study of laser surface hardening of AISI 410 and 420 martensitic stainless steels by using diode laser

Mahmoud Moradi, Hossein Arabi, Saied Jamshidi Nasab, Khaled Y. Benyounis

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Abstract

Laser surface hardening process is one of the new technologies for improving the surface of metals, especially steels, which in recent decades has received a lot of attention. This paper surveys the capability of laser surface hardening of AISI 410 and AISI 420 martensitic stainless steel by using continues wave diode laser with a maximum power of 1600 W, experimentally. Microstructure of the laser treated area by using optical microscope (OM), Field emission Scanning Electron Microscope (FESEM), and XRD were investigated and compared. Geometrical dimension, micro-hardness deviation (MHD) from the micro-hardness of the base metal, ferrite percentage, and the grain size of the hardened zone are the other considered responses. The results indicate that in the same input parameters the AISI 420 has higher surface hardness and less penetration depth and width than the AISI 410 stainless steel. Observations showed that a laser surface hardened layer of AISI 410 is about 620 HV with 1.8 mm depth and while for AISI 410 is about 720 HV with 1.2 mm depth is obtained. Comparing the results with the furnace hardening heat treatment show that the laser hardening process is more effective and precise than conventional processes.

Original language	English
Pages (from-to)	347-357
Number of pages	11
Journal	Optics and Laser Technology
Volume	111
Early online date	15 Oct 2018
DOIs	https://doi.org/10.1016/j.optlastec.2018.10.013
Publication status	Published - 1 Apr 2019
Externally published	Yes

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Optics and Laser Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Optics and Laser Technology, 111, (2019) DOI: 10.1016/j.optlastec.2018.10.013

© 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

AISI 410
AISI 420
Laser surface hardening
Micro-hardness
Microstructure

Access to Document

10.1016/j.optlastec.2018.10.013

Post-PrintAccepted author manuscript, 1.5 MBLicence: CC BY-NC-ND

Cite this

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title = "A comparative study of laser surface hardening of AISI 410 and 420 martensitic stainless steels by using diode laser",

abstract = "Laser surface hardening process is one of the new technologies for improving the surface of metals, especially steels, which in recent decades has received a lot of attention. This paper surveys the capability of laser surface hardening of AISI 410 and AISI 420 martensitic stainless steel by using continues wave diode laser with a maximum power of 1600 W, experimentally. Microstructure of the laser treated area by using optical microscope (OM), Field emission Scanning Electron Microscope (FESEM), and XRD were investigated and compared. Geometrical dimension, micro-hardness deviation (MHD) from the micro-hardness of the base metal, ferrite percentage, and the grain size of the hardened zone are the other considered responses. The results indicate that in the same input parameters the AISI 420 has higher surface hardness and less penetration depth and width than the AISI 410 stainless steel. Observations showed that a laser surface hardened layer of AISI 410 is about 620 HV with 1.8 mm depth and while for AISI 410 is about 720 HV with 1.2 mm depth is obtained. Comparing the results with the furnace hardening heat treatment show that the laser hardening process is more effective and precise than conventional processes.",

keywords = "AISI 410, AISI 420, Laser surface hardening, Micro-hardness, Microstructure",

author = "Mahmoud Moradi and Hossein Arabi and {Jamshidi Nasab}, Saied and Benyounis, {Khaled Y.}",

note = "NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in Optics and Laser Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Optics and Laser Technology, 111, (2019) DOI: 10.1016/j.optlastec.2018.10.013 {\textcopyright} 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ ",

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doi = "10.1016/j.optlastec.2018.10.013",

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AU - Moradi, Mahmoud

AU - Arabi, Hossein

AU - Jamshidi Nasab, Saied

AU - Benyounis, Khaled Y.

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Optics and Laser Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Optics and Laser Technology, 111, (2019) DOI: 10.1016/j.optlastec.2018.10.013 © 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2019/4/1

Y1 - 2019/4/1

N2 - Laser surface hardening process is one of the new technologies for improving the surface of metals, especially steels, which in recent decades has received a lot of attention. This paper surveys the capability of laser surface hardening of AISI 410 and AISI 420 martensitic stainless steel by using continues wave diode laser with a maximum power of 1600 W, experimentally. Microstructure of the laser treated area by using optical microscope (OM), Field emission Scanning Electron Microscope (FESEM), and XRD were investigated and compared. Geometrical dimension, micro-hardness deviation (MHD) from the micro-hardness of the base metal, ferrite percentage, and the grain size of the hardened zone are the other considered responses. The results indicate that in the same input parameters the AISI 420 has higher surface hardness and less penetration depth and width than the AISI 410 stainless steel. Observations showed that a laser surface hardened layer of AISI 410 is about 620 HV with 1.8 mm depth and while for AISI 410 is about 720 HV with 1.2 mm depth is obtained. Comparing the results with the furnace hardening heat treatment show that the laser hardening process is more effective and precise than conventional processes.

AB - Laser surface hardening process is one of the new technologies for improving the surface of metals, especially steels, which in recent decades has received a lot of attention. This paper surveys the capability of laser surface hardening of AISI 410 and AISI 420 martensitic stainless steel by using continues wave diode laser with a maximum power of 1600 W, experimentally. Microstructure of the laser treated area by using optical microscope (OM), Field emission Scanning Electron Microscope (FESEM), and XRD were investigated and compared. Geometrical dimension, micro-hardness deviation (MHD) from the micro-hardness of the base metal, ferrite percentage, and the grain size of the hardened zone are the other considered responses. The results indicate that in the same input parameters the AISI 420 has higher surface hardness and less penetration depth and width than the AISI 410 stainless steel. Observations showed that a laser surface hardened layer of AISI 410 is about 620 HV with 1.8 mm depth and while for AISI 410 is about 720 HV with 1.2 mm depth is obtained. Comparing the results with the furnace hardening heat treatment show that the laser hardening process is more effective and precise than conventional processes.

KW - AISI 410

KW - AISI 420

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KW - Micro-hardness

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DO - 10.1016/j.optlastec.2018.10.013

M3 - Article

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EP - 357

JO - Optics and Laser Technology

JF - Optics and Laser Technology

ER -

A comparative study of laser surface hardening of AISI 410 and 420 martensitic stainless steels by using diode laser

Abstract

Bibliographical note

Keywords

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