Impact wear resistance of WC/Hadfield steel composite and its interfacial characteristics

Zhang, Guoshang; Xing, Jiandong; Gao, Yimin

doi:10.1016/j.wear.2005.04.010

Cited by 84 publications

(33 citation statements)

References 4 publications

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“…Napoiny kompozytowe o osnowie metalicznej z dodatkiem wysokotopliwych faz, w postaci węglików, borków czy azotków łączą w sobie cechy stosunkowo plastycznej matrycy i twardych cząstek fazy umacniającej. Tego typu warstwy wykazują jednocześnie wysoką odporność na zużycie w warunkach dużego obciążenia ściernego i udarowego [2,3].…”

Section: Wstępunclassified

Otrzymywanie i struktura kompozytowych warstw Ni-NbC napawanych plazmowo

Bober

2018

Przegląd Spawalnictwa

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StreszczenieW artykule przedstawiono wyniki badań kompozytowych warstw Ni-NbC napawanych plazmowo z mieszaniny proszków na podłoża ze stali niestopowej. Napoiny te wykonano dla zmiennych wartości natężenia prądu łuku głównego w zakresie 60÷120 A. Przeprowadzono badania struktury, stosując zarówno mikroskopię optyczną, jak i skaningową. Analizowano rozkład mikrotwardości osnowy. Wykazano, iż poprawne napoiny formują się dla określonych parametrów procesu, a w efekcie intensywnego oddziaływania czą-stek NbC z ciekłą osnową dochodzi do ich dezintegracji.Słowa kluczowe: napawanie plazmowe proszkowe; napoiny kompozytowe; Ni-NbC AbstractThe results of investigations of Ni-NbC composite coatings deposited by the plasma transferred arc welding method from a mixture of powders onto the low alloy steel are presented in the paper. These weld overlaying were made for variable values of the main arc current in the range of 60÷120 A. The structure examinations of coatings were carried out using both optical and scanning microscopy. The microhardness distribution of the matrix of composite coatings was also analyzed. It was shown that correct weld overlaying are formed for specific process parameters, and as a result of the intensive interaction of NbC particles with the liquid matrix comes to their disintegrate.

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Section: Wstępunclassified

Otrzymywanie i struktura kompozytowych warstw Ni-NbC napawanych plazmowo

Bober

2018

Przegląd Spawalnictwa

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“…Work hardening mechanisms, impact wear, abrasive wear and the alloying of austenitic manganese steel have been investigated by several researchers and results have shown that under repeated impact and abrasive wear it work hardens rapidly and displays remarkable toughness [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] . Several other works on its surface treatment have also proved that surface treatment increases its surface hardness and wear resistance [22][23][24][25] . However, the rate of work hardening depends primarily on the amount of carbon in solution in the austenite matrix and the presence of a fine dispersion of carbides.…”

Section: Introductionmentioning

confidence: 96%

Workhardening behaviour and microstructural analysis of failed austenitic manganese steel crusher jaws

2013

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This study focussed on the work hardening behaviour and microstructure of austenitic manganese steel relative to premature failure of crusher jaws. Samples of sound and failed crusher jaws were taken, the change with depth from the working surface to the sample core was measured and their microstructures observed. The study revealed a sharp hardness gradient in the failed crusher jaws, and presence of large carbides at both the austenite grain boundaries and in the austenite matrix. The failure of crusher jaws was attributed to brittle fracture as a result of precipitates of carbides from the inability of precipitated carbides to absorb shock during impact working. Finally, we conclude that the failure occurred as a result of inadequate quenching operations during the manufacturing process that resulted in the formation of carbide precipitates which embrittle the austenitic manganese steel, reduce its ability to withstand shock and create a non uniform plastic flow as it is work hardening.

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“…Although various attempts have been carried out to overcome this shortcoming, the improvement of the wear resistance is still not satisfied [1][2][3][4]. Recently, many attentions are paid on the high manganese steel matrix composites [5][6][7][8][9]. In this paper, we present a novel technique to synthesize the (Fe, Cr) 7 C 3 particle beams reinforced the high manganese steel matrix composite.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Performance of a High Manganese Steel Matrix Composite Reinforced by (Fe,Cr)7C3 Particle Beams

Yan¹,

Guo²

2017

dtetr

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ABSTRACT A high manganese steel matrix composite with reinforced (Fe, Cr) 7 C 3 particle beam was fabricated via melt compositing and in-situ formation method. The microstructure of the composite was analyzed by scanning electron microscopy and energy dispersive X-ray spectroscopy. The reinforced phase of the composite mainly include column and fine short rod or globular carbide (Fe, Cr) 7 C 3 , and the former is primary. To investigate the wear resistant properties of the composite, wear tests at different loadings (5N, 10N, 15N and 20N) were carried on the wear machine. For comparison, the wear tests of a high manganese steel were also conducted with the same conditions. The results show that the abrasive wear resistance is strengthened significantly due to the formation of (Fe, Cr) 7 C 3 particle beam, which were created through the chemical reaction of alloy powders. According to the impact fracture experiments of the composite, it is found that the fracture of particle beams in the composite belongs to a brittle fracture.

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Impact wear resistance of WC/Hadfield steel composite and its interfacial characteristics

Cited by 84 publications

References 4 publications

Otrzymywanie i struktura kompozytowych warstw Ni-NbC napawanych plazmowo

Otrzymywanie i struktura kompozytowych warstw Ni-NbC napawanych plazmowo

Workhardening behaviour and microstructural analysis of failed austenitic manganese steel crusher jaws

Microstructure and Performance of a High Manganese Steel Matrix Composite Reinforced by (Fe,Cr)7C3 Particle Beams

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