Effects of electrode configuration on electroslag remelting process of M2 high-speed steel ingot

Yin, Fuxing; Liang, Yu; Xiao, Zhixia; Feng, Jianhang; Xie, Zhibin; Mi, Yong-wang

doi:10.1007/s41230-019-8125-7

Cited by 5 publications

(4 citation statements)

References 17 publications

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“…18) The cooling rate is the product of temperature gradient (G) and growth rate (V). As the cooling rate (G*V) in the edge zone was larger than those in the middle and inner zones, a larger degree of supercooling and a higher number of fine columnar dendrites were obtained in the HSS-E specimen, whereas eutectic carbides in the middle and inner zones could grow for a sufficient time during solidification and formed thicker and shorter rodlike M 2 C carbides, a good agreement between the above results and the reports by Yin 19) has been obtained. As the affinity between V and C is stronger than that between W, Mo, Cr, and C, the increasing content of C and a certain content of V in the HSS-I specimen led to the formation of more granular MC carbides.…”

Section: Microstructure Of Hss Layersupporting

confidence: 86%

Characteristics of High Speed Steel/ductile Cast Iron Composite Roll Manufactured by Electroslag Remelting Cladding

Cao

Dong

et al. 2021

ISIJ Int.

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In the present study, high-speed steel (HSS)/ductile cast iron (DCI) composite roll was manufactured by the electroslag remelting cladding (ESRC) technology. The compositional variation, grain size, microstructure, hardness, and tensile strength of the HSS layer and the bimetallic interface were investigated systematically. The obtained results illustrated that the chemical composition of the cladding layer (HSS) changed dramatically due to the surface melting of the roll core (DCI) and the mechanical mixing of the bimetallic liquids. The different solidification rates and chemical compositions in different regions of the HSS layer led to great variations of the grain size, the carbide content, and the hardness. In addition, a bimetallic transition zone (about 9.47 mm) was generated between the HSS layer and the DCI core due to the elemental migration and diffusion between the bimetals. Carbides of different types, morphologies, sizes, and compositions had direct influences on interfacial properties.

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Section: Microstructure Of Hss Layersupporting

confidence: 86%

Characteristics of High Speed Steel/ductile Cast Iron Composite Roll Manufactured by Electroslag Remelting Cladding

Cao

Dong

et al. 2021

ISIJ Int.

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show abstract

“…A 3D finite-element model (FEM) was developed to understand the electromagnetic field and liquid metal pool shape in the electroslag remelting process with two seriesconnected electrodes [4] . In another study [5] , the threedimensional (3D) finite element model was developed to simulate the electromagnetic field and temperature field for a system of an electrode, slag and ingot in the ESR system with three-phase installation.…”

Section: State Of the Artmentioning

confidence: 99%

Phenomena at three-phase electroslag remelting

et al. 2021

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“…11) Therefore, electroslag remelting (ESR) with water-cooled mold has been used to manufacture HSS widely due to its advantages of increasing solidification rate, reducing elements segregation and refining grain. [12][13][14] However, the previous reports mainly focus on the traditional high-speed tool steels, less of that is focused on the systematic microstructure analyses of HSS roll with high contents of C and Vas used in the present study.…”

Section: Introductionmentioning

confidence: 99%

Carbide Characteristics of High Vanadium High-speed Steel Manufactured by Electroslag Remelting

et al. 2022

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The carbide characteristics of high vanadium high-speed steel (W3Mo4Cr5V6) manufactured by electroslag remelting (ESR) are analyzed by field emission scanning electron microscopy (FESEM), electron probe microanalysis (EPMA) and micro-Vickers. The results illustrate that three types of carbides are mainly formed in W3Mo4Cr5V6 which includes the lumpy and strip-like MC in the intracrystalline, lamellar M 2 C at grain boundary with discontinuous network and globular secondary carbides dispersed in matrix, among these, the eutectic strip-like MC occupies the main part. The more uniform distribution and finer size for both MC and M 2 C are obtained with high solidification rate (SR). Both 2D and 3D morphologies of MC carbides show obvious symmetry with clustered distribution and various shapes. The MC and M 2 C are rich in V and Mo, W respectively, the compositional characteristics are not only related to the carbide type and morphology, but also the precipitation order and distribution density. The Vickers hardness of primary MC, eutectic MC and M 2 C are measured and the average values are 2 205 HV, 850 HV and 896 HV respectively which includes the adverse effects of soft matrix on the test results of hard carbides. A new and exact test method for pure carbides should be developed in the future.

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Effects of electrode configuration on electroslag remelting process of M2 high-speed steel ingot

Cited by 5 publications

References 17 publications

Characteristics of High Speed Steel/ductile Cast Iron Composite Roll Manufactured by Electroslag Remelting Cladding

Characteristics of High Speed Steel/ductile Cast Iron Composite Roll Manufactured by Electroslag Remelting Cladding

Phenomena at three-phase electroslag remelting

Carbide Characteristics of High Vanadium High-speed Steel Manufactured by Electroslag Remelting

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