Mechanisms of microstructure formations in M50 steel melted layer by high current pulsed electron beam

Tang, Guangze; Xu, Fangjun; Fan, Guohua; Ma, Xinxin; Wang, Liqin

doi:10.1016/j.nimb.2012.07.021

Cited by 16 publications

(4 citation statements)

References 22 publications

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“…Similar results were also observed in D2 steel [9,15] HSS S6-5-2 steel [17], and M50 steel [18] irradiated by the multiple pulses of the HCPEB irradiation. Our observation is a little different from the studies of Zou et al [9,15,18]. In their studies, similar austenite grains were observed after the HCPEB remelting of the D2 steel, and so forth.…”

Section: Resultssupporting

confidence: 84%

“…Stahli et al observed the formation of a thin layer (about 0.3 m) of a nanoaustenite structure after irradiating a prequenched bearing steel using a pulsed laser [16]. Similar results were also observed in D2 steel [9,15] HSS S6-5-2 steel [17], and M50 steel [18] irradiated by the multiple pulses of the HCPEB irradiation. Our observation is a little different from the studies of Zou et al [9,15,18].…”

Section: Resultsmentioning

confidence: 61%

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Surface Nanocrystallization of 3Cr13 Stainless Steel Induced by High‐Current Pulsed Electron Beam Irradiation

Zhi-jun

Cai

et al. 2013

Journal of Nanomaterials

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The nanocrystalline surface was produced on 3Cr13 martensite stainless steel surface using high-current pulsed electron beam (HCPEB) technique. The structures of the nanocrystallized surface were characterized by X-ray diffraction and electron microscopy. Two nanostructures consisting of fine austenite grains (50–150 nm) and very fine carbides precipitates are formed in melted surface layer after multiple bombardments via dissolution of carbides and crater eruption. It is demonstrated that the dissolution of the carbides and the formation of the supersaturated Fe (C) solid solution play a determining role on the microstructure evolution. Additionally, the formation of fine austenite structure is closely related to the thermal stresses induced by the HCPEB irradiation. The effects of both high carbon content and high value of stresses increase the stability of the austenite, which leads to the complete suppression of martensitic transformation.

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Section: Resultssupporting

confidence: 84%

Section: Resultsmentioning

confidence: 61%

Surface Nanocrystallization of 3Cr13 Stainless Steel Induced by High‐Current Pulsed Electron Beam Irradiation

Zhi-jun

Cai

et al. 2013

Journal of Nanomaterials

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“…They were verified to be from the -Fe phase. The peak intensity of the -Fe phase increases with the accelerating voltage, indicating that the volume fraction of the phase detected by XRD increases [44,45]. The corrosion resistance of the D2 steels samples was measured in the 3.5% NaCl water solution.…”

Section: Improving Corrosion Resistance Of D2 Steel By Lehcpebmentioning

confidence: 99%

Nanostructure Formations and Improvement in Corrosion Resistance of Steels by Means of Pulsed Electron Beam Surface Treatment

Zhang

Zou

Grosdidier

2013

Journal of Nanomaterials

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The corrosion of steels has long been the topic for materials scientists. It is established that surface treatment is an efficient way to improve the corrosion resistance of steels without changing the bulk properties and with low costs. In the present paper, different kinds of surface treatment techniques for steels are briefly reviewed. In particular, the surface modification involving nanostructure formations of steels by using a low energy high pulsed electron beam (LEHCPEB) treatment is lightened in the case of an AISI 316L stainless steel and D2 steel. The overall results demonstrate the high potential of the LEHCPEB technique for improving the corrosion performance of steels.

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“…The Materials 2023, 16, 3649 2 of 15 retained austenite is enriched, and hence stabilized, by carbide-forming elements. Within the enriched areas, carbides form at the end of solidification or are precipitated during post-processing heat treatments [4][5][6][7][8].…”

Section: Introduction 1motivationmentioning

confidence: 99%

Novel Pectin Binder for Satelliting Carbides to H13 Tool Steel for PBF-LB Processing

et al. 2023

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In order to enhance the range of processable alloys of laser-based powder bed fusion, reinforced alloys have gained focus. Satelliting is a recently introduced method for adding fine additives to larger parent powder particles using a bonding agent. Satellited particles prevent a local demixing due to size and density effects of the powder. In this study, the satelliting method is used for the additivation of Cr3C2 to AISI H13 tool steel via a functional polymer binder (pectin). The investigation includes a detailed binder analysis and comparison to the previously used PVA binder as well as processability in PBF-LB and the microstructure of the alloy. The results reveal that pectin is a suitable binder for the satelliting process and the demixing behavior that appears when using a simple powder blend can be significantly reduced. However, the alloy is enriched with carbon, which results in austenite being retained. Thus, in future research, a reduced binder content will be investigated.

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Mechanisms of microstructure formations in M50 steel melted layer by high current pulsed electron beam

Cited by 16 publications

References 22 publications

Surface Nanocrystallization of 3Cr13 Stainless Steel Induced by High‐Current Pulsed Electron Beam Irradiation

Surface Nanocrystallization of 3Cr13 Stainless Steel Induced by High‐Current Pulsed Electron Beam Irradiation

Nanostructure Formations and Improvement in Corrosion Resistance of Steels by Means of Pulsed Electron Beam Surface Treatment

Novel Pectin Binder for Satelliting Carbides to H13 Tool Steel for PBF-LB Processing

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