Mechanism of surface layer hardening in impact-abrasive wear of high-chromium cast iron

Комаров, О. С.; Ivashkin, V. V.; Урбанович, Н. И.

doi:10.1007/bf00729871

Cited by 4 publications

(2 citation statements)

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“…Elastic deformation at contact may appear if the external loads do not exceed the values N uec corresponding to unsaturated elastic contact [6][7][8][9][10][11] where For unsaturated elastic contact, the frictional coefficient in the slip bearing is…”

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confidence: 99%

Life of Slip Bearings in the Supporting Roller System of Section Rolling Mills

et al. 2021

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confidence: 99%

Life of Slip Bearings in the Supporting Roller System of Section Rolling Mills

et al. 2021

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“…High alloyed chromium cast irons were used in applications with extreme demanding requirements such as abrasive, erosion, heat and corrosion resistance (Carpenter, Carpenter and Pearce, 2004;Komarov, Sadovski, Urbanovich and Lifshits, 2002). Also these cast irons were employed with unusual physical properties, such as low thermal expansion or non magnetic properties are desired (Ogi, Yamomoto and MiyaKawat, 2003;Chenje, Simbi and Navara, 2006;Tabrett and Sare, 2000).…”

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confidence: 99%

The Role of Manganese on Microstructure of High Chromium White Cast Iron

Kadhim¹,

Abood²,

Yaseen³

2011

MAS

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To determine the effect of austenite stabilizer element on the microstructure and behaviour of as–cast high Cr white cast iron Fe-21Cr-3Ni-1.7Mo-2.4C, different percentages of Mn (0.4, 0.9, 1.3, 1.7, 2.2 and 2.6 wt%) were added. Detailed investigations were carried out using scanning electron microscopy, energy dispersive spectroscopy analysis (EDS), X-ray diffraction and hardness test. It showed that with increasing Mn addition, the austenite phase (γ) of the as-cast alloys refine clearly. The morphology of the austenite phase for all alloys is a mixture of dendrite and plate like. The austenite phase refines clearly with increasing manganese addition. The major carbide phase formed in the as- cast alloys is M₇C₃ with minor carbides of (Fe,Cr)₂₃C₆ and Mo₂C. Microstructure analysis showed the presence of small amounts of martensite and delta ferrite in all as-cast alloys. The hardness was decreased continuously with increasing Mn content. This is mainly attributed to the morphology of carbides rather than to small variation in carbides content. It was observed that considerable amounts of Mn were found in the carbides lower than that in the austenite matrix.

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