Behaviour of iron-based hardfacing alloys under abrasion and impact

Kirchgaßner, M.; Badisch, E.; Franek, F.

doi:10.1016/j.wear.2008.01.004

Cited by 200 publications

(109 citation statements)

References 12 publications

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“…Protective coating layer can be achieved using thermal spraying, cladding and welding [1][2][3]. Among all the available methods, welding is considered to be an economical one as a variety of processes can be implemented to deposit the desired coatings.…”

Section: Introductionmentioning

confidence: 99%

Phase Composition and Defect Substructure of Strengthening Layer Surfaced on Low Alloyed Steel

Ivanov

Громов

Коновалов

et al. 2018

JMNM

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Abstract. The microstructure and microhardness distribution in surface of low carbon Hardox 450 steel coated with alloyed powder wires of different chemical compositions are studied. It is shown that the microhardness of 6-8 mm thickness surfaced layer exceeds that of base metal by more than 2 times. The increased mechanical properties of surfaced layer are caused by the submicro and nanoscale dispersed martensite, containing the niobium carbides Nb2C, NbC and iron borides Fe2B. In the bulk plates a dislocation substructure of the net-like type with scalar dislocation density of 1011 cm-2 is observed. The layer surfaced with the wire containing B possesses the highest hardness. The possible mechanisms of niobium and boron carbides formation in surfacing are discussed.

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Section: Introductionmentioning

confidence: 99%

Phase Composition and Defect Substructure of Strengthening Layer Surfaced on Low Alloyed Steel

Ivanov

Громов

Коновалов

et al. 2018

JMNM

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“…The most common processes are tungsten inert gas (TIG) [8], gas tungsten arc (GTA) [9], plasma transferred arc (PTA) [10], oxyacetylene welding (OAW), gas metal arc welding (GMAW), shielded metal arc welding (SMAW), and submerged arc welding (SAW) [11].…”

Section: Introductionmentioning

confidence: 99%

“…In the PTA process, the heat of the plasma (arc of ionised gas) is used to melt the surface of the substrate and the welding powder, where the molten weld pool is protected from the atmosphere by the shielding gas [19]. While there is a great deal of study about surface hardening processes of boron containing (656) steel and alloys [7,8,11], there is not any study about the Fe Nb B alloys used for surface alloying treatments.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Fe-Nb-B Base Hardfacing of Steel

Kılınç

Çeğil²,

Abakay

et al. 2014

Acta Phys. Pol. A

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Recently hardfacing by welding has become a commonly used technique for improvement of material performance in extreme (high temperature, impact/abrasion, erosion, etc.) conditions. In the present study, three di erent alloy compositions of the Fe Nb B were used for hardfacing of the AISI 1020 steel by tungsten inert gas welding process and analyzed. The coatings were produced from a mixture of ferrous niobium, ferrous boron and iron powders in the range of −45 µm particle size with di erent ratio. The coatings' thickness was set to 2 3 mm on the substrate. Microstructure, phase analysis and hardness of the manufactured hardfacing alloys were characterized. Deposition results indicate good quality thick coating and porosity free of the hardfacings. X-ray di raction analyses showed that the alloyed layers include iron borides, FeNbB and iron phases. It was shown that surface alloyed layer has composite structure including steel matrix and well distributed boride phases.

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“…Welding deposits can functionalize surfaces and reclaim components extending their service life [2]. Welding is a key technology to fulfil these requirements and to apply hardfacing alloys [3].…”

Section: Introductionmentioning

confidence: 99%