Characterization of Fe–C–Cr Based Hardfacing Alloys

Shibe, Vineet; Chawla, Vikas

doi:10.1007/s12666-018-1352-6

Cited by 13 publications

(17 citation statements)

References 11 publications

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“…Highly alloyed hard alloys containing expensive alloying elements are usually used as wear-resistant coatings [6][7][8][9][10][11][12][13][14][15]. Typically, the hardening process is carried out by applying a wear-resistant material to those parts that are subject to more intense wear.…”

Section: Research Results and Discussionmentioning

confidence: 99%

Differentiated welding deposit of soiling parts according to abrasive wear map

Myalenko

Sankina

2021

E3S Web Conf.

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The paper proposes the use of maps of the expected abrasive wear of the friction surface of a soil-cutting part, which characterize the wear intensity at various points of the friction surface during its movement in the soil environment. The importance of this work is caused by changes in modern technologies for the cultivation of agricultural crops, requiring changes in the geometric shapes of soil-cutting parts with the need to predict their service life. A study of the physical and mechanical properties and structure of the hardened layer was carried out using gray cast iron. Gray cast iron was preliminarily subjected to heat treatment, which made it possible to increase the tensile strength up to 200 … 250 MPa and hardness up to HRC 50 … 55. To increase the wear resistance of soil-cutting parts operating in an abrasive environment, hardening was carried out by the electric spark method using gray cast iron, previously subjected to heat treatment. The microstructure of the deposited layer became pearlite-ledeburite without graphite precipitation. Electro-spark deposition made it possible to form a wear-resistant layer in several passes, while the structure of the cast iron and the base did not undergo any changes. No increase in grain size was observed in the deposited layer, which favorably affects its properties. The hardness of the deposited layer was higher (4800 … 5000 MPa) than that of the base metal (2300 … 2400 MPa), no softening of the base was observed. According to the test results of hardened products, heat-treated gray cast iron can be recommended for use as a material for hardening, since the thickness of the coating does not lead to changes in the initial geometric dimensions of the soil-cutting tool using differentiated surfacing using abrasive wear maps.

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Section: Research Results and Discussionmentioning

confidence: 99%

Differentiated welding deposit of soiling parts according to abrasive wear map

Myalenko

Sankina

2021

E3S Web Conf.

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“…Similar findings were reported in previous works. [2][3][4][5] Macro-and micro-hardness For carbide phase, when compared from AR to A and WQ condition, a 21% decrease and 19.6% increase, respectively, was observed. Similarly, when compared for the matrix phase, a 35% drop and 23.1% rise were noticed.…”

Section: Microstructural Characterizationmentioning

confidence: 98%

“…carbides existing with matrix phase, their dimensions, proportion and orientation would directly influence the deposit's abrasion resistance. 1,4,5 For the past few decades, nano-scale property evaluation of various metallic materials, phases of materials and coatings with different crystal types was investigated. In recent years, special attention on the accelerated property mapping (XPM) technique that was used to perform a number of indents in short periods of time for the creation of contour maps of reduced modulus and hardness with high spatial resolution.…”

Section: Introductionmentioning

confidence: 99%

Effect of heat treatment on nano-mechanical behaviour of matrix and carbide phases of Fe–13Cr–1C hardfaced alloy coating

Kaushik

Krishna

Satya

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Fe–Cr–C hardfaced coatings are applied over components used in mining, earth moving, ash and coal handling systems. The performance of these coatings depend on microstructural phases present in the deposit post-solidification and/or heat treatment. To prevent the failure of a coating, understanding the mechanical behaviour of the existing phases is one of the key areas of focus. In the current investigation, the study was limited to understand the influence of heat treatment process on nano-scale hardness and reduced modulus properties of phases of Fe–13%Cr–1%C hardfaced alloy coating by accelerated property mapping (XPM) technique. Colour variation in the property maps showed the relative deformation nature of the material. The hardness and reduced modulus values for carbide phases were found to be higher in all conditions. From Weibull statistical analysis, the Weibull modulus values reduced drastically for the carbide phase after heat treatment, revealing higher variability of mechanical properties. The above trends were observed mainly due to %C and %Cr difference across phases and carbide phase morphology transformation happened due to heat treatment.

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“…3,4 The resistance to abrasion of a hardfacing alloy depends on numerous other factors, such as the rate of dilution, the type, structure, spreading, shape of hard phases and the strain-hardening behavior and toughness of the matrix. 5,6 A higher dilution level tends to change the microstructure and reduce the wear rate. 7 Raghy et al 8 reported that the material undergoes an early transition stage where the friction coefficient varies linearly and then jumps to a steady rate.…”

Section: Introductionmentioning

confidence: 99%

Effect of vanadium and rare earth (RE) oxide hardfacing on mechanical and sliding wear behavior of Fe based alloy

Vidyarthy

Thapliyal

Dwivedi

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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Hardfacing is one of the preferred ways to prolong the life of machine components. In the current paper, efforts have been made to evaluate the flux composition on the hardness and wear behavior of a hard-faced surface. The shielded metal arc welding process was used to deposit the hardfacing layer over low carbon steel. Six different types of iron-based multicomponent flux compositions were developed using FeCr (25–30%), FeV (5%), FeMo (3–4 %), FeTi (2–3 %), Nb (3–4 %), and CeO2 (1–5 %) for hardfacing. The properties of the overlayer were examined using the microstructure study, hardness study, and abrasive wear test. Microstructural characterization was done using an optical microscope and field emission scanning electron microscope. X-ray diffraction was performed to examine the nature of precipitate formation. The worn-out surface and the debris were further examined, employing scanning electron microscopy to study the wear mechanism. The hard-faced surfaces revealed the presence of columnar and dendritic grains. Equiaxed grains were also observed in the sample, which was hard-faced with FeV. The hardness of the hard-faced surfaces was determined using the Vicker’s macro-hardness tester. A maximum hardness of 846.5 ± 2.5 HV was observed for weld overlay. The sliding wear behavior of the surface was investigated using an abrasive wear test performed on the pin-on-disk apparatus. The addition of vanadium to Fe-Cr-C hardfacing flux increased hardness and wear resistance between 3.5 and 6 times, respectively.

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Characterization of Fe–C–Cr Based Hardfacing Alloys

Cited by 13 publications

References 11 publications

Differentiated welding deposit of soiling parts according to abrasive wear map

Differentiated welding deposit of soiling parts according to abrasive wear map

Effect of heat treatment on nano-mechanical behaviour of matrix and carbide phases of Fe–13Cr–1C hardfaced alloy coating

Effect of vanadium and rare earth (RE) oxide hardfacing on mechanical and sliding wear behavior of Fe based alloy

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