Mechanical properties and wear resistance of direct energy deposited Fe–12Mn–5Cr–1Ni-0.4C steel deposited on spheroidal graphite cast iron

Park, Young Keun; Ha, Kyeongsik; Bae, Ki Chang; Shin, Kwang Yong; Lee, Ki Yong; Shim, Do-Sik; Lee, Wookjin

doi:10.1016/j.jmrt.2022.06.102

Cited by 11 publications

(5 citation statements)

References 25 publications

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“…This was due to the strong austenite stabilization effect of Mn. A similar observation was made in the L-DED-processed HMnS with a manganese content of 12 wt.% [22]. For the HMnS with a manganese content higher than 24 % used in this study, Hufenbach et al [25] reported that the Fe-30Mn-1C-0.02S (wt.%) alloy deposited through a selective laser melting process also comprises γ-austenite as the main phase.…”

Section: Microstructuressupporting

confidence: 82%

“…In a pervious study by the authors, HMnS with a manganese content of 12 wt.% was successfully fabricated by the L-DED process [22]. The results showed that L-DED can produce HMnS with a near defect-free microstructure, without any significant macroscopic segregation of Mn due to rapid solidification.…”

Section: Introductionmentioning

confidence: 99%

“…The hardness values excluding the maximum and minimum values were averaged. Tensile specimens were cut in the form of dog bones according to the KS B 0801 standard [22]. The tensile test was performed at a speed of 0.1 mm/min using a uniaxial tensile testing machine (UNITECH-T, R&B Inc., Daejeon, Korea) on more than two specimens from each sample.…”

mentioning

confidence: 99%

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Laser Rescanning for Enhancing Mechanical Properties of Laser-Directed Energy-Deposited High-Manganese Steels

Park,

Nam,

Park

et al. 2024

Micromachines

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This study investigates the effects of laser deposition and laser rescanning (LR) on the microstructure and mechanical properties of high-manganese steel (HMnS) deposited by laser-directed energy deposition (L-DED) comprising 24 wt.% Mn. Four types of laser deposition and LR strategies were investigated: unidirectional L-DED scanning without laser rescanning, L-DED scanning with 90° alterations in the laser scanning path on each layer without laser rescanning, unidirectional L-DED with laser rescanning in the same direction, and L-DED with laser rescanning with 90° alterations in the laser scanning path. The L-DED-processed HMnS had only a few small pores and exhibited a microstructure without any serious defects such as cracks. Additionally, a strong fibrous texture along the <101>/building direction of the fully austenite phase was found. The mechanical properties (microhardness and tensile strength) of HMnS were improved by the LR with a grain refinement effect and fine solidification cell size due to the significantly faster solidification rate in LR than that in L-DED.

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Section: Microstructuressupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

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Laser Rescanning for Enhancing Mechanical Properties of Laser-Directed Energy-Deposited High-Manganese Steels

Park,

Nam,

Park

et al. 2024

Micromachines

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“…For the use of WAAM in the field of Ni-based superalloys, Chigilipalli et al [158] compared the wear behavior of printed samples with wrought references and were able to demonstrate increased hardness as well as wear resistance in dry sliding wear tests. In [159], the DED process was also used to create a coating on a substrate surface. The substrate used was cast iron, on which a high-manganese steel was deposited.…”

Section: Direct Energy Deposition (Ded)mentioning

confidence: 99%

Surface Properties and Tribological Behavior of Additively Manufactured Components: A Systematic Review

et al. 2023

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Innovative additive manufacturing processes for resilient and sustainable production will become even more important in the upcoming years. Due to the targeted and flexible use of materials, additive manufacturing allows for conserving resources and lightweight design enabling energy-efficient systems. While additive manufacturing processes were used in the past several decades mainly for high-priced individualized components and prototypes, the focus is now increasingly shifting to near-net-shape series production and the production of spare parts, whereby surface properties and the tribological behavior of the manufactured parts is becoming more and more important. Therefore, the present review provides a comprehensive overview of research in tribology to date in the field of additively manufactured components. Basic research still remains the main focus of the analyzed 165 papers. However, due to the potential of additive manufacturing processes in the area of individualized components, a certain trend toward medical technology applications can be identified for the moment. Regarding materials, the focus of previous studies has been on metals, with stainless steel and titanium alloys being the most frequently investigated materials. On the processing side, powder bed processes are mainly used. Based on the present literature research, the expected future trends in the field of tribology of additively manufactured components can be identified. In addition to further basic research, these include, above all, aspects of process optimization, function integration, coating, and post-treatment of the surfaces.

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“…Ductile iron is a type of material with perfect castability, easy machinability, wear resistance, high strength to low weight ratio, fatigue strength, high corrosion resistance and toughness. Due to these properties, it is a widely used material in the machinery and automobile industries for structural components such as machine tool bearings, bearings, rolling mills, pistons, cylinders and pump housings [3].…”

Section: Introductionmentioning

confidence: 99%

Investigation of The Effect of Molding Material Difference on Design in GGG70 Ductile Cast Iron Production

Keskin,

Durmuş,

Şekerden

et al. 2024

Türk Doğa Ve Fen Dergisi

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The casting process involves filling a prepared mould cavity with molten metal, which takes the shape of the container. While the liquid metal takes the shape of the container it is in, the method is attractive, while the volumetric changes during the liquid-solid transformation reveal the importance of moulding design for the manufacture of solid parts. Especially in cast irons, moulds with the same design may produce different results depending on the changing casting and foundry conditions because the volumetric change that occurs during the solidification of ductile cast irons is affected by many parameters and develops differently than in steel and aluminium castings. This study used model wet and resin molding materials to create single and double-riser moulding and castings with different section thicknesses. The importance of the type of mold material used in castings and the number of feeders for the robust production of the cast part was evaluated using experimental and modeling techniques. When the results were examined, it was seen that the shrinkage risk was lower with resin mould than with green sand moulding. In addition, depending on the riser connection point, the importance of the riser neck has emerged.

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Mechanical properties and wear resistance of direct energy deposited Fe–12Mn–5Cr–1Ni-0.4C steel deposited on spheroidal graphite cast iron

Cited by 11 publications

References 25 publications

Laser Rescanning for Enhancing Mechanical Properties of Laser-Directed Energy-Deposited High-Manganese Steels

Laser Rescanning for Enhancing Mechanical Properties of Laser-Directed Energy-Deposited High-Manganese Steels

Surface Properties and Tribological Behavior of Additively Manufactured Components: A Systematic Review

Investigation of The Effect of Molding Material Difference on Design in GGG70 Ductile Cast Iron Production

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