Influence of the shape of graphite inclusions on the mechanical properties of iron–carbon alloys

Акимов, И. В.; Sylovanyuk, V. P.; Волчок, И. П.; Ivantyshyn, N. A.

doi:10.1007/s11003-013-9546-x

Cited by 5 publications

(2 citation statements)

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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

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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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“…When the aluminum alloy is melted, it is easy to produce Al2O3. It not only deteriorates the casting properties of the alloy but also reduces the impact toughness and fatigue limit of the alloy [10][11][12][13] . The microstructure of Si Al alloy can be understood by a metallographic microscope, the casting effect of Si Al alloy can be understood, and the defects of the microstructure can be revealed.…”

Section: Preparation Of Metallographic Samples Of Silicon and Aluminu...mentioning

confidence: 99%

Preparation Method for Metallographic Specimen of Iron-Carbon and Silicon-aluminium Alloy

Zhang

2022

J. Phys.: Conf. Ser.

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Abstracts Metallographic analysis is one of the means of testing and analyzing materials. To conduct metallographic analysis, we must prepare samples that can be used for microscopic observation. It is important to select and prepare representative samples, which is directly related to the correctness of microstructure analysis of metallography apspecimensimen. In this paper, the preparation process of the ferrocarbon alloy metallographic sample was analyzed and studied in detail, and some common defects were pointed out. The preparation process includes sampling, inlaying, polishing, polishing, and corrosion. Then, taking a silicon aluminum alloy (YZAlSi10) as an example, the preparation process is described, and the matters needing attention in the preparation process and the elimination of metallographic defects are analyzed. Finally, the accurate and clear microstructure of the metallographic structure is restored.

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Evaluation of the Strength of Limestone After Long-Term Weathering Under Natural Conditions

2018

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Influence of the shape of graphite inclusions on the mechanical properties of iron–carbon alloys

Cited by 5 publications

References 1 publication

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

Preparation Method for Metallographic Specimen of Iron-Carbon and Silicon-aluminium Alloy

Evaluation of the Strength of Limestone After Long-Term Weathering Under Natural Conditions

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