Microstructural and Mechanical Properties Investigation of TiC Reinforced Hardface Alloy Deposited on Mild Steel Substrate

Jilleh, Afzalleh; Babu, N. Kishore; Thota, Venugopal; Harun, Mohamad Kamal; Talari, Mahesh Kumar

doi:10.1007/s12666-013-0252-z

Cited by 8 publications

(6 citation statements)

References 7 publications

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“…In order to further improve the wear resistance of hardfacing alloys under severe working conditions, researchers have explored the properties of Fe-based hardfacing alloys reinforced by the precipitation of micrometric or nanometric secondary hard phases [16][17][18][19][20][21][22][23][24]. Besides, boron was also added into the iron base hardfacing alloy to improve their hardness and wear resistance due to the formation of harder carbides and borides.…”

Section: Introductionmentioning

confidence: 99%

Effect of B Content on Microstructure and Wear Resistance of Fe-3Ti-4C Hardfacing Alloys Produced by Plasma-Transferred Arc Welding

Zong

Guo

et al. 2019

Coatings

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The Fe-3Ti-xB-4C (x = 1.71, 3.42, 5.10, 6.85 wt. %) hardfacing alloys are deposited on the surface of a low-carbon steel by plasma transferred arc (PTA) weld-surfacing process. Microstructure, hardness and wear resistance have been investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), Rockwell hardness tester and abrasive wear testing machine, respectively. The results show that the microstructure in all alloys is composed of austenite, martensite, Fe23(C,B)6, Ti(C,B) and Fe2B. The volume fraction of eutectic borides and Ti(C,B) carbides increases with increasing B content. Many brittle bulk Fe2B phase arises when the boron content increases to 6.85%, which causes the formation of microcracks in the hardfacing layer. The microhardness of the hardfacing alloys is significantly improved with the B addition, however, the wear resistance of hardfacing alloys increases firstly and then decreases with increasing of B content. The hardfacing alloy with the 5.10% B content has the best wear resistance, which is attributed to high volume fraction of eutectic borides and fine Ti(C,B) particles distributed in the austenite and lath martensite matrix with high hardness and toughness. The formation of brittle bulk Fe2B particles in the hardfacing alloy with the 6.85% B leads to the fracture and spalling of hard phases during wear, thus, reducing the wear resistance.

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Section: Introductionmentioning

confidence: 99%

Effect of B Content on Microstructure and Wear Resistance of Fe-3Ti-4C Hardfacing Alloys Produced by Plasma-Transferred Arc Welding

Zong

Guo

et al. 2019

Coatings

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“…that can withstand high abrasive wear environments [13]. Jilleh [14] reported that additions of Ti to the Fe-Cr-C based flux -cored wire prevents chromium carbides formation due to the formation of uniformly dispersed TiC inclusions in the steel matrix. Similar features of TiC grains formation were observed after FCAW with flux of Fe-Cr-C-B system with Ti additions [15].…”

Section: Literature Reviewmentioning

confidence: 99%

Improvement of Abrasion Resistance of Production Equipment Wear Parts by Hardfacing with Flux-Cored Wires Containing Boron Carbide/Metal Powder Reaction Mixtures

Ivanov

Prysyazhnyuk

Lutsak

et al. 2020

Management Systems in Production Engineering

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In this work was established that serial traditional hardfacing materials based on the Fe-Cr-C system are not effective for improvement of abrasion resistance of elements of equipment for production of bricks, solid fuel briquettes and for restoration of augers, due to the fact that this equipment works at significant specific and cyclic loads. Features of the coarse-grained structure of Fe-Cr-C based coatings leads to intensive abrasive wear. The aim of this study was to increase a durability of that equipment by using of flux cored electrodes with reaction components of Ti, Cr, Mo, B4C and their combinations to provide synthesis, which leads to fine-grained structure of refractory borides and carbides and their solid solutions with increased hardness. Structure of the hardfacing coatings were investigated by method of metallography, scanning electron microscopy (SEM), electron backscatter diffraction (BSD) mode and energy dispersive X-ray spectroscopy (EDS). Temperature dependences of equilibrium phase amount of the hardfacing materials were calculated by the CALPHAD technique, using JMatPro software. It was investigated that the offered materials are characterized by higher wear resistance at high specific and cyclic loads in comparison with serial production high-chromium hardfacing materials (Lastek, ESAB, Paton IEW). It was established that the abrasion wear resistance at high specific and cyclic loads depends mostly of formation of the structure of hardfacing material, and not the hardness. Also, using of powders of pure metals and their combination as reaction mixture for FCAW leads to fine structure which contains of refractory borides and carbides and their solid solutions.

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“…However, such materials, based on Fe-Cr-C system, are characterized with low resistance in the conditions of abrasion wear under high working speed, high specific and cyclic loads. In the works (Wang, Xin-hong et al, 2008., ., Jilleh et al, 2013., Liu et al, 2012., Lutsak et al, 2016 scientists are considering using of Ti based systems and Ti addition to the Fe-Cr-C system, which leads to the formation of uniformly dispersed TiC inclusions in the steel matrix. For alloying the Fe-Ti-C system scientists also uses Nb, V (Qi et al, 2011) and Mo (Zhang et al 2018).…”

Section: Fig 1 Appearance Of Worn Work Surfaces Of Equipment For Procmentioning

confidence: 99%

Wear Resistance Improvement of Equipment for Production of Building Ceramics by Hardfacing with Flux-Coerd Electrodes based on Fe-Ti-B-C System

Prysyazhnyuk

Ivanov

Lutsak

et al. 2020

Multidisciplinary Aspects of Production Engineering

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In this work were analyzed factors that leads to wearing of equipment of production engineering, construction, oil and gas, woodworking, tillage industries. Was established that traditional hardfacing materials based on the Fe-Cr-C system are not effective for improvement of abrasion resistance of elements of equipment for production of ceramic building materials due to working conditions. The aim of this work was to increase a durability of that equipment by using of flux cored electrodes with reaction components that provide “in-situ” synthesis, which leads to fine-grained structure of refractory borides and carbides and their solid solutions with increased hardness. Powders of Ti, Mo, B4C and their combinations were used. Structure of the hardfacing coatings were investigated by method of metallography, scanning electron microscopy (SEM). Using of pure metal powders led to forming a fine-grained structure with refractory borides and carbides and their solid solutions. It was investigated that the offered material based on Fe-Ti-Mo-C-B system used for increasing the wear resistance of extruder-screw for production of ceramic building material can increase the TBO period in 2.2-2.4 times in comparison with serial hardfacing materials based on Fe-Cr-C system.

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Microstructural and Mechanical Properties Investigation of TiC Reinforced Hardface Alloy Deposited on Mild Steel Substrate

Cited by 8 publications

References 7 publications

Effect of B Content on Microstructure and Wear Resistance of Fe-3Ti-4C Hardfacing Alloys Produced by Plasma-Transferred Arc Welding

Effect of B Content on Microstructure and Wear Resistance of Fe-3Ti-4C Hardfacing Alloys Produced by Plasma-Transferred Arc Welding

Improvement of Abrasion Resistance of Production Equipment Wear Parts by Hardfacing with Flux-Cored Wires Containing Boron Carbide/Metal Powder Reaction Mixtures

Wear Resistance Improvement of Equipment for Production of Building Ceramics by Hardfacing with Flux-Coerd Electrodes based on Fe-Ti-B-C System

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