Comparison of Mechanical Properties of Ni-Al-Bronze Alloy Fabricated through Wire Arc Additive Manufacturing with Ni-Al-Bronze Alloy Fabricated through Casting

Kim, Jisun; Kim, Jaewoong; Pyo, Changmin

doi:10.3390/met10091164

Cited by 24 publications

(16 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…If the heat input is increased, the area of the softened zone in the heat-affected zone (HAZ) will be increased, which will affect the service performance of materials. However, reducing the heat input is prone to welding defects such as incomplete fusion and incomplete penetration [ 17 , 18 , 19 ]. Based on the CMT welding process, the cold metal transfer plus pulse technology (CMT + P) is proposed to improve the narrow control range of the CMT welding heat input [ 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructures and Properties Investigation on DP980 Dual-Phase Steel CMT + P Welded Joints

Liu

Chen

et al. 2022

Materials

View full text Add to dashboard Cite

The increasing demand for the lightweight production of advanced high-strength steel puts forward higher requirements for the quality of welded joint forming. The common CMT welding process has certain limitations and is difficult to meet the needs of lightweight manufacturing. In this study, the CMT + P welding technology was used to weld the DP980 dual-phase steel plate with 1.2 mm thickness. The ER120S-G welding wire was used as the filling material to conduct a 70° angle lap welding experiment. The effects of wire feeding speed (3 m/min~5 m/min) and welding speed (350 mm/min~600 mm/min) on the forming, microstructures, and mechanical properties of DP980 dual-phase steel welded joints were analyzed. The results show that the CMT + P welding process can produce lap weldments with good formability and properties. The welded joints can be divided into the weld zone, the HAZ, and the base metal zone, where the HAZ can be divided into the coarse-grained zone and the softened zone. The role of the elements Ni and Si is to promote the production of martensite and to increase the ferrite strength in welded joints. As the wire feeding speed increases, the grain size of the coarse grain zone in the HAZ increases from 31.90 μm to 50.93 μm; while the welding speed increases, the grain size of the coarse grain zone decreases from 45.48 μm to 35.73 μm. The average microhardness of the weld zone is 420 HV. In contrast, the average microhardness of the softening zone in HAZ is reduced to 250 HV. When the wire feeding speed is 4 m/min and the welding speed is 550 mm/min, the tensile properties of the weldment are optimal, its tensile strength can reach 973 MPa, and the tensile fracture is ductile fracture.

show abstract

Section: Introductionmentioning

confidence: 99%

Microstructures and Properties Investigation on DP980 Dual-Phase Steel CMT + P Welded Joints

Liu

Chen

et al. 2022

Materials

View full text Add to dashboard Cite

show abstract

“…The use of a hollow shell in the structure allowed reducing of the weight of the hook significantly while maintaining similar lifting values. Research results published by Kim et al [3] comparing ASTM B 150 (NAB) aluminum-nickel bronze (NAB) samples produced by casting and additive manufacturing using WAAM technology, prove that the mechanical properties are better for 3D printing. The samples produced by AM had 50% higher tensile strength, 20% higher yield point and 60% greater elongation.…”

Section: Ramlab and Waam-propellermentioning

confidence: 99%

“…All parts designed for 3D printing should be customized for the process and use the potential of the manufacturing technology. For example, it has been proven that WAAM parts can outperform conventionally manufactured parts [3] in terms of mechanical properties. Combining this fact with the ability to optimize geometry that only AM can achieve, it can lead to a significant reduction in weight and waste material, while maintaining component strength.…”

Section: Introductionmentioning

confidence: 99%

Possible Applications of Additive Manufacturing Technologies in Shipbuilding: A Review

Ziółkowski

Dyl

2020

Machines

View full text Add to dashboard Cite

3D printing conquers new branches of production due to becoming a more reliable and professional method of manufacturing. The benefits of additive manufacturing such as part optimization, weight reduction, and ease of prototyping were factors accelerating the popularity of 3D printing. Additive manufacturing has found its niches, inter alia, in automotive, aerospace and dentistry. Although further research in those branches is still required, in some specific applications, additive manufacturing (AM) can be beneficial. It has been proven that additively manufactured parts have the potential to out perform the conventionally manufactured parts due to their mechanical properties; however, they must be designed for specific 3D printing technology, taking into account its limitations. The maritime industry has a long-standing tradition and is based on old, reliable techniques; therefore it implements new solutions very carefully. Besides, shipbuilding has to face very high classification requirements that force the use of technologies that guarantee repeatability and high quality. This paper provides information about current R&D works in the field of implementing AM in shipbuilding, possible benefits, opportunities and threats of implementation.

show abstract

“…Copper alloys [19,39], nickel alloys [40][41][42], magnesium alloys [43,44], tantalum [45,46], tungsten [47,48] and high-temperature resistant MoNbTaWTi high-entropy alloy [49] produced in the WAAM process were also subjected to detailed analysis.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Process and Microstructure Examination of Flux-Cored Wire Arc Additive Manufactured 18Ni-12Co-4Mo-Ti Maraging Steel

Pańcikiewicz

2021

Materials

View full text Add to dashboard Cite

The production of large-size elements using additive manufacturing is a constantly evolving field that includes technological and material solutions. There is a need for a detailed analysis of the process and the products thus manufactured. In line with this trend, the flux-cored wire arc additive manufactured process and the part made of 18Ni-12Co-4Mo-Ti maraging steel were examined. The interpass temperature below 150 °C, the variation of the starting point and the gas flow of 12 L/min with a pre-flow of 2 s ensure the correct shape of the layers. The manufactured part underwent chemical composition analysis, macro- and microscopic examination and hardness measurements; in addition thermodynamic calculations were performed. The part is divided into a light-etched area (bottom part of the sample) with a hardness of 375 ± 12 HV10 and a dark-etched area (top part of the sample) with a hardness of 525 ± 11 HV10. Microscopic observations in the last layers showed supersaturated martensite with primary precipitates of μ-phase intermetallic compounds in intercellular spaces. In the earlier layers aging martensite with austenite and primary precipitates of intermetallic compounds were revealed. The share of austenite was 11.435 ± 1.313%.

show abstract

Comparison of Mechanical Properties of Ni-Al-Bronze Alloy Fabricated through Wire Arc Additive Manufacturing with Ni-Al-Bronze Alloy Fabricated through Casting

Cited by 24 publications

References 33 publications

Microstructures and Properties Investigation on DP980 Dual-Phase Steel CMT + P Welded Joints

Microstructures and Properties Investigation on DP980 Dual-Phase Steel CMT + P Welded Joints

Possible Applications of Additive Manufacturing Technologies in Shipbuilding: A Review

Preliminary Process and Microstructure Examination of Flux-Cored Wire Arc Additive Manufactured 18Ni-12Co-4Mo-Ti Maraging Steel

Contact Info

Product

Resources

About