A numerical-experimental study of AISI 316L borided steels under cyclic contact loading

Fernández-Valdés, D.; Rosa, O. Vasquez-De la; Rodríguez-Castro, G.A.; Meneses-Amador, A.; López-Liévano, A.; Ocampo-Ramírez, Arturo

doi:10.1016/j.surfcoat.2021.127556

Cited by 4 publications

(1 citation statement)

References 34 publications

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“…The effect of magnetic treatment on mechanical characteristics was studied by comparing the micro-hardness and microstructures of treated and untreated steel samples. To reduce stress levels, wet hard machining was used; nonetheless, residual stresses were still present [21][22][23][24][25]. Sophisticated measurement equipment is required for accurate control of the gear wheel induction surface hardening process parameters.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Hardness of AISI 1045 Steel Rods Tested by Borided and Inducted

2022

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Temperature has a significant impact on the properties and structures of materials. This research used boriding and subsequent induction hardening and tempering of AISI 1045 medium carbon steel rod samples in order to improve the hardness of the surface layer. Induction coils are used to add boron paste components to the steel rods' surfaces. Testing is used to assess the hardness and microstructure of the treated steel rods. A total of 30 samples are tested at different temperatures, dwell durations, and feed rates to determine the hardness of the treated specimens. As part of the tempering process, Taguchi Optimization is carried out in a furnace to determine the best parameter values for eliminating internal stresses. Two types of instruments are utilised to examine materials for their chemical composition as well as their microstructure: the Scanning Electron Microscope (SEM) and the Optical Microscope. As a result of the emergence of martensitic structures, hardness values have risen. Lower hardness values are obtained at temperatures between 800 °C and 850 °C, whereas 690 HV is the maximum hardness measured at 1208 °C. Increased temperature increases AISI 1045 steel's surface hardness, according to

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Section: Introductionmentioning

confidence: 99%

Evaluation of Hardness of AISI 1045 Steel Rods Tested by Borided and Inducted

2022

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Contact fatigue of thin hard diamond-like carbon films on M50 steels under cyclic spherical micro-indentation

Shu,

Lin,

Wang

et al. 2024

Tribology International

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Structure and properties of the boride layer of steel using the plasma alloying method

Balanovskii,

Nguen,

Konyukhov

et al. 2024

Černaâ metallurgiâ. Bûlletenʹ naučno-tehničeskoj informacii

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Boration is one of the promising methods for increasing surface hardness and wear resistance, resistance to oxidation and corrosion of mechanical engineering parts. The diffusion saturation process is characterized by a long duration, as well as a shallow depth of the hardened layer. The use of concentrated heating sources can solve these problems. Among the methods of high-energy exposure, the technology of plasma surface alloying should be highlighted. In this paper, the study of the microstructure and properties of the boride layer obtained on steel by plasma alloying is carried out. It is noted that the boron-doped layer has a heterogeneous structure and high hardness. It is noted that the layer obtained after alloying with a current of 120 A has the highest microhardness value and amounts to 859–1265 HV. With an increase in current to 140 A, the microhardness of the alloyed layer decreases and amounts to 761–1048 HV. Increasing the current to 160 A leads to a significant decrease in the microhardness of the surface layer and it is 452–747 HV. It is known that the volume of iron boride fractions determines the degree of hardening of the steel surface. An increase in the plasma arc current leads to a decrease in the proportion of primary borides in the surface layer after alloying, and therefore leads to a decrease in microhardness. The alloyed layer has characteristic zones: hypereutectic, eutectic and hypoeutectic. An increase in current leads to a significant change in the microstructure of the surface layer and a decrease in the microhardness of the alloyed layer. The surface layer after plasma alloying with a current of 120 A has the highest microhardness (1265 HV). It has been established that it is possible to obtain a boride layer using the technology of plasma surface doping with boron. After processing, the alloyed layer is characterized by a heterogeneous structure and has high hardness.

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A numerical-experimental study of AISI 316L borided steels under cyclic contact loading

Cited by 4 publications

References 34 publications

Evaluation of Hardness of AISI 1045 Steel Rods Tested by Borided and Inducted

Evaluation of Hardness of AISI 1045 Steel Rods Tested by Borided and Inducted

Contact fatigue of thin hard diamond-like carbon films on M50 steels under cyclic spherical micro-indentation

Structure and properties of the boride layer of steel using the plasma alloying method

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