Surface treatment of C80U steel by long CO2 laser pulses

Bień, Anna; Szkodo, Marek

doi:10.1016/j.jmatprotec.2014.11.001

Cited by 10 publications

(3 citation statements)

References 11 publications

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“…They observed that when LSTH was conducted with a laser energy density of 75 J/mm 2 , an excellent fretting wear behavior was obtained as compared to that in as-received tool steel. Bien et al [15] performed LSTH of C80U steel by a CO 2 continuous wave laser. The results showed that the microstructure including highly defected fine-plate martensite with a specified number of imperfectly dissolved cementite and a small amount of retained austenite phase was obtained when C80U steel was melted by optical discharge plasma.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of AISI 4130 Steel Surface Hardening by Pulsed Nd:YAG Laser

et al. 2019

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Laser surface transformation hardening (LSTH) of AISI 4130 was investigated by a Nd:YAG pulsed laser. Laser focal height (LFH), pulse width (LPW), scanning speed (LSS), and power (LP) varied during the experiments. The microstructure of the treated zone was characterized by optical (OM) and field emission scanning electron microscopy (FESEM). Micro-hardness was measured in the width and depth directions. Results showed that the hardness and depth of hardened layer increased by decreasing the LSS and the laser focal position (LFP), and by increasing the LPW. The results were compared with those obtained by furnace heat treatment of the same steel. Eventually, a finite element model was employed for the simulation of the LSTH of AISI 4130 steel and calculation of the heat-treated zone. The results showed that the model can predict with accuracy the temperature profile and the size and the shape of the laser hardened region.

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Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of AISI 4130 Steel Surface Hardening by Pulsed Nd:YAG Laser

et al. 2019

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“…The intensification of the surface hardening technologies of machine components promotes a number of relevant studies in the field. Today, the behavior of metallic materials subjected to laser or electron beam treatment attracts much attention from researchers [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Laser treatment is fast process involving small zone for its thermal effect. Laser treatment is easy to control and requires no vacuum [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Structure and Hardness of М2 High Speed Steel Modified by Pulsed Laser Irradiation

Khaydarova

Matrunchik

2019

MSF

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The paper studies the surface structure and microhardness of the coating modified by the pulsed laser irradiation. The coating is obtained by plasma-jet hard-facing of the AISI (American Iron and Steel Institute) М2 high speed steel powder. The modes of the laser irradiation differ in peaking capacity, pulse duration and diameters of the focused laser beam. It is demonstrated that the weld penetration shape factor depends on the laser beam fluence and the pulse duration. In its turn, the weld penetration shape factor effects the quality of obtained irradiation zones.

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Experimental Study of Surface Hardening of AISI 420 Martensitic Stainless Steel Using High Power Diode Laser

Moradi

Fallah

Nasab

2018

Trans Indian Inst Met

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Surface treatment of C80U steel by long CO2 laser pulses

Cited by 10 publications

References 11 publications

Experimental and Numerical Study of AISI 4130 Steel Surface Hardening by Pulsed Nd:YAG Laser

Experimental and Numerical Study of AISI 4130 Steel Surface Hardening by Pulsed Nd:YAG Laser

Structure and Hardness of М2 High Speed Steel Modified by Pulsed Laser Irradiation

Experimental Study of Surface Hardening of AISI 420 Martensitic Stainless Steel Using High Power Diode Laser

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