Effects of surface alloying on microstructure and wear behavior of ductile iron surface-modified with a nickel-based alloy using shielded metal arc welding

Jeshvaghani, R. Arabi; Harati, Ebrahim; Shamanian, M.

doi:10.1016/j.matdes.2010.10.006

Cited by 53 publications

(26 citation statements)

References 13 publications

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“…LC technology uses high energy density of laser beam to melt feedstock material and the surface layer of the substrate to form metallurgical bonding between the coating and substrate [9,10]. Ni60 coatings deposited by LC showed that compounds such as FeB, Cr 3 C 7 , Ni 3 Si easily concentrated at the grain boundary, the structure stress and heat stress of the coating were generated due to dendritic growth and high thermal gradients were induced during rapid cooling and solidification, which can all result in the initiation of cracks [11][12][13][14]. Although metallurgical combination between the coating and substrate in laser cladding can improve coating adhesion strength, element component dilution of the coating may affect the properties of the coating and form a low hardness zone [15].…”

Section: Introductionmentioning

confidence: 99%

Characteristics and performance of hard Ni60 alloy coating produced with supersonic laser deposition technique

Yao

Yang

et al. 2015

Materials & Design

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Section: Introductionmentioning

confidence: 99%

Characteristics and performance of hard Ni60 alloy coating produced with supersonic laser deposition technique

Yao

Yang

et al. 2015

Materials & Design

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“…Furthermore the absence of porosity, solidification cracking and grain growth in the HAZ of steel could be probably due to the presence of deoxidizers (Mn, Ti), high Mn/S ratio and less carbon content, and the formation of various grain growth suppressing carbide formers in the nickel-filler metal respectively 13) Mo has been found as richer constituent in the weld region, weld interface and the HAZ of Inconel 625 in the PCGTA weldments as compared to GTA weldments. It is known fact the PCGTA welding employs lower heat input which resulted in higher cooling rates.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Microstructure and Mechanical Properties of Inconel 625 and AISI 304 Dissimilar Weldments

et al. 2014

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This investigation has been performed to characterize the microstructure and mechanical properties of the GTA and PCGTA welded dissimilar combinations of Inconel 625 superalloy and AISI 304 austenitic stainless steel. These welds were obtained by employing ERNiCrMo-3 filler metal. The weldments were characterized by the combined techniques of optical microscopy and SEM/EDAX analysis. Hardness and tensile studies were conducted to assess the mechanical properties of the weldments. Tensile studies showed that the fracture had occurred at the parent metal of AISI 304 side in both the cases.KEY WORDS: gas tungsten arc welding; pulsed current gas tungsten arc welding; alloy 625; austenitic stainless steel AISI 304; filler metal.

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“…In alloying periods, heat-affected region delivers higher temperatures compared to eutectoid temperature in the iron-carbon phase diagram [10]. Therefore, the graphite nodules start to dissolve in the austenite (γ-Fe) during higher temperatures and then change into martensite (M-phase) because of a higher rate of cooling [23]. Figure 3b, c shows the SEM and optical micrograph (OM) images of cross-sectioned alloying layers.…”

Section: Microstructural Examinationmentioning

confidence: 99%

Comparative study of laser melting and pre-placed Ni–20% Cr alloying over nodular iron surface

Jeyaprakash

Yang

Duraiselvam

et al. 2020

Archiv.Civ.Mech.Eng

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In this study, two techniques such as laser surface melting (LSM) and laser surface alloying (LSA) were performed to protect the surface layers of nodular cast iron as it is used to manufacture different machine parts like cams, beds, camshafts, crankshafts, cylinders and engine blocks. The main objective of this research work is to examine the effects of LSM and LSA processes on phases, microstructure, hardness, wear resistance and surface roughness. The outcomes of both LSM and LSA specimens show a homogeneous structure, effective bonding of alloy powders with the base metal and crack-free surfaces. The hardness was improved 4 times (LSM) and 2.62 times (LSA) when compared with the base material. The tribological test shows improved wear resistance of LSM (8.82 × 10 −7 kN) and LSA (1.32 × 10 −6 kN) samples compared to the base material (4.36 × 10 −6 kN). The examined wear tracks indicate that mild abrasion, adhesion and delamination were the major wear mechanisms. The reason for the enhancement of wear resistance is the refinement of microstructure, the solid solution strengthening effect and good bonding between alloy powders and base material. The LSM technique is a potential method to improve the tribological properties of industrial materials.

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Effects of surface alloying on microstructure and wear behavior of ductile iron surface-modified with a nickel-based alloy using shielded metal arc welding

Cited by 53 publications

References 13 publications

Characteristics and performance of hard Ni60 alloy coating produced with supersonic laser deposition technique

Characteristics and performance of hard Ni60 alloy coating produced with supersonic laser deposition technique

Characterization of Microstructure and Mechanical Properties of Inconel 625 and AISI 304 Dissimilar Weldments

Comparative study of laser melting and pre-placed Ni–20% Cr alloying over nodular iron surface

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