Microstructure analysis of nodular iron 400-12 after laser surface melt hardening
References (8)
- et al.
The transformation hardening of steel surfaces by laser beams. I. Hypo-eutectoid steels
Acta. Metall.
(1984)
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2023, Optics and Laser TechnologyThe friction and wear behaviour of in-situ titanium carbide reinforced composite layers manufactured on ductile cast iron by laser surface alloying
2021, Surface and Coatings TechnologyCitation Excerpt :Generally, LSM is a well-established method which provides a significant enhancement of the sliding wear resistance of different cast iron grades [8,9]. However, since the modification of the microstructure and, thus, the mechanical properties of the laser surface melted layer (SML) can be achieved only through control of the solidification conditions in the molten pool [10], there is no possibility to influence both the friction and wear performance of SMLs fabricated on DCI substrates [11]. Numerous studies have demonstrated that the transition from microstructures with stable phases (Fe-graphite) to those with metastable phases (Fe-cementite) gives a significant increase in hardness, considerably improving the wear resistance of the DCI [12,13].
The influence of various cooling rates during laser alloying on nodular iron surface layer
2018, Optics and Laser TechnologyEffect of laser surface treatment on the dry sliding behaviour of the EN-GJS400-12 ductile cast iron
2016, Tribology InternationalThe evaluation of the influence of laser treatment parameters on the type of thermal effects in the surface layer microstructure of gray irons
2016, Optics and Laser TechnologyCitation Excerpt :Therefore, if the same laser treatment conditions (and even the same laser beam parameters) are applied, changes achieved in the surface layer past LHT could be different in steel and cast iron. It is worth emphasizing, that CO2 lasers are most often used lasers since offer high powers of the laser beam for surface treatment of metal alloys e.g. steels [23–28] and gray irons [29–34]. Nevertheless, other lasers like fiber [35] or Nd: YAG [36, 37] can be applied to modify gray iron surface.