Microstructure and Mechanical Properties of AF1410 Ultra-High Strength Steel Using Laser Additive Manufacture Technique

Zhihui, 王志会 Wang; Huaming, 王华明 Wang; Dong, 刘东 Liu

doi:10.3788/cjl201643.0403001

Cited by 5 publications

(2 citation statements)

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“…At this point, heat could be dissipated through the substrate and free surface, and due to the stirring effect of laser and the heterogeneous nucleation caused by unmelted particles in the molten pool, dendritic orientations are disorder. Because of the small size of the alloying molten pool, heat is mainly dissipated by the cold matrix, which leads to the orientations of dendrites inside layer are still approximately perpendicular to the fusion line [13,30].…”

Section: Resultsmentioning

confidence: 99%

Laser surface alloying with carbon on 15-5PH steel for improved wear resistance

Zhang

Wang

Chen

et al. 2020

Surface Engineering

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Supersaturated carbon alloying layer was prepared on the surface of 15-5PH stainless steel using laser surface alloying technology with carbon powders as alloying materials. XRD, optical microscope, scanning electron microscope, microhardness test and wear test were performed to characterize the microstructure and wear resistance of substrate and alloying layer. Results showed that the alloying layer was rapidly solidified dendritic structure with phase compositions of high-carbon austenite and a small amount of martensite and M 7 C 3 carbides. Microhardness of the alloying layer reached about 510 HV, which was 38.7% higher than that of the as-deposited substrate (375 HV). Carbon supersaturated solid solution strengthening and microstructure refinement strengthening were the main reasons for a substantial increase in alloying layer microhardness. After direct aging treatment, microhardness of the alloying layer further increased to nearly 640 HV. Wear test results showed that the mass loss of the aging alloying layer was about 60% lower than that of the aging substrate, which meant significantly improvement of wear resistance.

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Section: Resultsmentioning

confidence: 99%

Laser surface alloying with carbon on 15-5PH steel for improved wear resistance

Zhang

Wang

Chen

et al. 2020

Surface Engineering

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“…Figure 1 Schematic diagram of the LAM process [16] In this study, two groups of 12 I-beams were used, of which six AF1410 steel I-beams and six forged I-beams were used in the first group and six forged I-beams in the second group. contact state with the test piece, and the pivot cylinders of the supporting fixture can be rotated in the mounting holes and the photos of the field installation are shown in Figure 3.…”

Section: Materials and Test Piecesmentioning

confidence: 99%

Test Study on Strength of Laser Additive Manufacture AF1410 Steel I-Shaped Beam

Yang¹,

Ma²,

Li³

et al. 2022

J. Phys.: Conf. Ser.

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The static and fatigue strength of laser additive manufactured AF1410 steel I-beam were tested by a four-point bending test, and the same method was used to test the conventional forged, machined AF1410 short steel beams. The fatigues test data of both short beams were analyzed by DFR method. The test and analysis results show that the static strength of laser additive short beams is close to conventionally fabricated short beams, and the fatigue performance is weaker than that of forged, machined short beams.

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Influence of last stage heat treatment on microstructure and mechanical properties of laser additive manufactured AF1410 steel

Cheng

Liu

et al. 2018

Materials Science and Engineering: A

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Microstructure and Mechanical Properties of AF1410 Ultra-High Strength Steel Using Laser Additive Manufacture Technique

Cited by 5 publications

References 0 publications

Laser surface alloying with carbon on 15-5PH steel for improved wear resistance

Laser surface alloying with carbon on 15-5PH steel for improved wear resistance

Test Study on Strength of Laser Additive Manufacture AF1410 Steel I-Shaped Beam

Influence of last stage heat treatment on microstructure and mechanical properties of laser additive manufactured AF1410 steel

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