Effect of carbonitride precipitates on the abrasive wear behaviour of hardfacing alloy

Yang, Kè; Shi, Yu; Li, Yingbin; Li, Chenglin

doi:10.1016/j.apsusc.2008.01.154

Cited by 46 publications

(21 citation statements)

References 11 publications

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“…So the sample H1 can keep higher hardness than the sample H2 at the high temperature. Therefore, a large number of carbonitrides homogeneously precipitated out during the high‐temperature wear, which not only prevent the decrease of hardness but also protect the matrix from wearing by the abrasion particles of crushed oxide 12. Moreover, the morphology and distribution of phases were dominant factors for the crack susceptibility.…”

Section: Resultsmentioning

confidence: 99%

“…The remarkable wear resistance of martensite 13%Cr–steel with nitrogen strengthening results from carbonitride precipitate‐stabilized substructure hardening, i.e. from a combination of hardening by precipitates of hard phases 12. However, no investigation has been done on the hardfacing alloy with nitrogen strengthening regarding their high‐temperature wear resistance, and the effect of nitrogen addition in hardfacing alloy on wear behaviors has so far not been reported.…”

Section: Introductionmentioning

confidence: 99%

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Improving High‐Temperature Wear Resistance of Fe–Cr13–C Hardfacing Alloy by Nitrogen Alloying

Yang

Bao

2012

steel research int.

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Nitrogen alloying of Fe-Cr13-C hardfacing alloy produces marked precipitation strengthening to achieve an improvement in high-temperature wear resistance. Two hardfacing alloys of Fe-Cr13-C (with and without nitrogen) are slid on carbon steel at high-temperature of 6008C and high load of 600 N, and wear behaviors are studied systematically. It is found that abrasive wear occurrs on the surface of the hardfacing alloy due to abrasive action of crushed oxide particles coming from the surface of carbon steel on the high temperature. The wear resistance is determined by the size and distribution of precipitates. The results show that the hardfacing alloy can obtain a great increase in hardness and a marked decrease in wear depth of grooving due to the effect of carbonitirde precipitates. The high-temperature wear resistance of the Fe-Cr13-C hardfacing alloy is improved by nitrogen alloying, and the wear mechanism is mainly plastic deformation with minimum depth of grooving caused by the oxide particles.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improving High‐Temperature Wear Resistance of Fe–Cr13–C Hardfacing Alloy by Nitrogen Alloying

Yang

Bao

2012

steel research int.

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“…In the Refractalloy 26, the larger precipitates might be seen as the reason for an increase in the mass loss during wear testing, given that the particles could detach from the alloy and, as the test was done without lubrication, act like an abrasive, increasing wear [8]. The polishing action of the detached precipitates would also cause less irregularity in the rugosity profile of the wear tracks.…”

Section: Discussionmentioning

confidence: 99%

Tribological Behavior of Hastelloy C and Refractalloy 26

Varela

Garcı́a

Mier

et al. 2011

ISRN Mechanical Engineering

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This paper compares the abrasive wear behaviour of two nickel alloys (Hastelloy and Refractalloy). Wear was calculated by weight loss using pin-on-disk tests that were carried out at certain values of load, speed, and temperature range. The study is completed with metallographic observations at different temperatures of the wear tracks before and after the tests. Also, the variation of the coefficient of friction with temperature is calculated in the two alloys studied.

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“…Additionally, a tough matrix is necessary for the hardfacing alloy to prevent the falling off of carbides and create a resistance to cracking. Titanium and niobium are strong carbide-forming elements and can combine with carbon in steels to form granular carbides with high hardness [5][6][7]. Few qualitative studies had been published [8][9][10] on the microstructure and wear resistance of hardfacing alloys used Ti and Nb as carbide-forming elements.…”

Section: Introductionmentioning

confidence: 98%

Formation mechanism of titanium and niobium carbides in hardfacing alloy

2016

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The most effective carbide-forming elements titanium and niobium were added into hardfacing alloy. Formation and composition of carbides in the hardfacing alloy were investigated by means of optical microscope (OM), scanning electron microscope (SEM), X-ray diffraction (XRD) and energy-dispersive spectrometer (EDS). Hardness and impact toughness of the hardfacing alloy were measured. The thermodynamics and formation mechanism of carbides were also discussed. It is found that the carbides consist of TiC and NbC which are able to form directly from welding pool during the welding process. The formation mechanism of carbides involves nucleation of TiC followed by epitaxial precipitation of NbC on the surface of TiC. The formation of titanium and niobium carbides can obviously refine the microstructure and deplete the carbon in the matrix. The microstructure transforms to well-distributed carbides and a tough martensite matrix, contributing to a good combination of high hardness and high toughness in the hardfacing alloy.

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Effect of carbonitride precipitates on the abrasive wear behaviour of hardfacing alloy

Cited by 46 publications

References 11 publications

Improving High‐Temperature Wear Resistance of Fe–Cr13–C Hardfacing Alloy by Nitrogen Alloying

Improving High‐Temperature Wear Resistance of Fe–Cr13–C Hardfacing Alloy by Nitrogen Alloying

Tribological Behavior of Hastelloy C and Refractalloy 26

Formation mechanism of titanium and niobium carbides in hardfacing alloy

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