Effect of Titanium and Nitrogen Additions on the Microstructures and Three-Body Abrasive Wear Behaviors of Fe–B Cast Alloys

Yi, Danhui; Xing, Jiandong; Zhang, Zhiyun; Fu, Hanguang; Yang, Chengyan

doi:10.1007/s11249-014-0314-3

Cited by 26 publications

(5 citation statements)

References 16 publications

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“…Alloying and high-temperature heat treatment are effective ways to improve the toughness of high boron steel. The Fe 2 B grains can be refined by Ti and Ni addition in the alloy and decomposition of net-like Fe 2 B is facilitated by Ce addition [ 15 , 16 ]. The distribution of boride is improved by modification of the alloy molten with V, Ti, and RE-Mg [ 17 ], which improves the toughness of a high boron iron-based alloy.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Quenching and Partitioning (Q&P) Heat Treatment on the Microstructure and Mechanical Properties of High Boron Steel

et al. 2021

Materials

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High boron steel is prone to brittle failure due to the boride distributed in it with net-like or fishbone morphology, which limit its applications. The Quenching and Partitioning (Q&P) heat treatment is a promising process to produce martensitic steel with excellent mechanical properties, especially high toughness by increasing the volume fraction of retained austensite (RA) in the martensitic matrix. In this work, the Q&P heat treatment is used to improve the inherent defect of insufficient toughness of high boron steel, and the effect mechanism of this process on microstructure transformation and the change of mechanical properties of the steel has also been investigated. The high boron steel as-casted is composed of martensite, retained austensite (RA) and eutectic borides. A proper quenching and partitioning heat treatment leads to a significant change of the microstructure and mechanical properties of the steel. The net-like and fishbone-like boride is partially broken and spheroidized. The volume fraction of RA increases from 10% in the as-cast condition to 19%, and its morphology also changes from blocky to film-like. Although the macro-hardness has slightly reduced, the toughness is significantly increased up to 7.5 J·cm−2, and the wear resistance is also improved.

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Section: Introductionmentioning

confidence: 99%

The Effect of Quenching and Partitioning (Q&P) Heat Treatment on the Microstructure and Mechanical Properties of High Boron Steel

et al. 2021

Materials

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“…Some researchers have attempted to improve the toughness of the Fe 2 B phase through alloying. [13][14][15][16] For example, Fu et al 15) and Yi et al 16) reported that the addition of Ti affects the shape and distribution of borides in hypoeutectic Fe-B-C alloys, leading to a decrease of the brittleness. Meanwhile, our group demonstrated that a hypereutectic Fe-B-C overlay with much higher wear resistance than that of hypoeutectic Fe-B-C alloys could be produced using powder-wire composite arc welding.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ti Addition on Phase Constitution and Wear Resistance of Fe–B–C Hypereutectic Overlays Produced Using Powder-Wire Composite Arc Welding

Zhuang

Jun

et al. 2017

Mater. Trans.

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The effects of the addition of small amounts of Ti on the phase constitution, microstructure, and wear resistance of Fe-B-C hypereutectic overlays produced using powder-wire composite arc welding were investigated. The Fe-B-C hypereutectic overlay phase consisted of TiB 2 and TiC in addition to Fe and Fe 2 B with the addition of Ti. The addition of Ti inhibited growth of the Fe 2 B and Fe 3 (C,B) phases. When the Ti content reached 0.918 mass%, the daisy-like Fe 3 (C,B) phases disappeared, and precipitation of dispersed TiB 2 and TiC began, which improved the wear resistance. Overlays without macroscopic cracks could be obtained. The wear mode of the Fe-B-C hypereutectic overlay changed from a mixture of microcutting and microfracture wear to microcutting wear.

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“…There are several types of carbide in this alloy system with different morphologies and compositions formed during the primary and eutectic transformation. Recently, Fe-Cr-W-Mo-V-C alloy has been used to replace the traditional cold work roll materials [2], for this application abrasive wear is the main failure mechanism of the cold work roll in service [3][4][5]. During the abrasive wear process, the carbides in the alloy play a significant role in the wear resistance of the cold work roll [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Investigation of microstructural damage to eutectic carbides from scratch tests of a heat-treated Fe–Cr–W–Mo–V–C alloy

Guo

Feng

Liu

et al. 2016

Wear

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Abstract:The characteristics of abrasive wear damage to the carbides and eutectic phases in a Fe-Cr-W-Mo-V-C alloy were systematically investigated using point scratch testing on heat-treated samples with preserved eutectic structures from a characteristic eutectic carbide formation temperature of 1240°C. A deep-etching method is applied to study the detailed morphologies of the eutectic carbides by optical microscopy (OM) and field emission scanning electron microscopy (FESEM). The types of the eutectic carbides was identified by X-ray diffraction (XRD) as V-rich eutectic MC and Mo-rich eutectic M 2 C. Single-pass scratch tests were carried out on polished and deep-etched surfaces of the specimens to investigate the micro-scale wear behavior of the eutectic carbides with and without protection by the matrix phase. It was found that, when a surrounding matrix is present, the micro-cracks initiate from the eutectic region during the scratch tests and slip-lines appear in scratched edges of the matrix phase. Without matrix protection as revealed in the deep etched samples, the main failure form is carbide dendrites break-off forming wear debris. The detailed differences in response and deformation mode of carbide microstructures with/without matrix support to single-point abrasion behavior are schematically depicted for main eutectic MC and M 2 C carbides under different loading conditions. Potential 2 improvement on wear performance through the composition design is also discussed based on the different fracture and wear behavior of V-rich eutectic MC and Mo-rich eutectic M 2 C identified

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Effect of Titanium and Nitrogen Additions on the Microstructures and Three-Body Abrasive Wear Behaviors of Fe–B Cast Alloys

Cited by 26 publications

References 16 publications

The Effect of Quenching and Partitioning (Q&P) Heat Treatment on the Microstructure and Mechanical Properties of High Boron Steel

The Effect of Quenching and Partitioning (Q&P) Heat Treatment on the Microstructure and Mechanical Properties of High Boron Steel

Effect of Ti Addition on Phase Constitution and Wear Resistance of Fe–B–C Hypereutectic Overlays Produced Using Powder-Wire Composite Arc Welding

Investigation of microstructural damage to eutectic carbides from scratch tests of a heat-treated Fe–Cr–W–Mo–V–C alloy

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