Electrochemical and physical characteristics of the steel treated by plasma-electrolysis boronizing

Tavakoli, Hossein; Khoie, S.M. Mousavi; Rasooli, F.; Marashi, S. P. H.; Momeni, Fatemeh

doi:10.1016/j.surfcoat.2015.06.020

Cited by 22 publications

(4 citation statements)

References 22 publications

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“…Advances on Manufacturing and Material Sciences morphology, unlike tooth-like structures formed in low alloy steels, which was also supported by past literature [6,[13][14][15]. It was observed that higher ratio of alloying element concentration reduced the degree of toothing of boron morphology.…”

supporting

confidence: 82%

Effect of Pack Boronizing on Microstructure and Microhardness of 304 Stainless Steel

Alias

Abdullah

Talari

et al. 2017

KEM

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The implementation of boronizing in low alloy steel had been implemented tremendously in past years as this method offers excellent surface protection that led to enhancement of hardness and wear of the material. In conjunction to that, few parameters had been recognized as the factor that promotes boron diffusion into the surface of the material which is the selection of boronizing temperature and time. This study concentrated on the effect of pack boronizing on the boride layer thickness of 304 stainless steel which contained high amount of alloying elements. The microstructural analysis and boron layer thickness was measured and observed using optical microscopy and SEM analyzer. The microhardness of the material was measured using Vickers microhardness tester. The results portrayed that boronizing successfully induced boronizing layer containing FeB and Fe2B phases with thickness of 15μm. This resulted in major improvement of the microhardness values with improvement of 5 times compared to non-boronized samples.

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supporting

confidence: 82%

Effect of Pack Boronizing on Microstructure and Microhardness of 304 Stainless Steel

Alias

Abdullah

Talari

et al. 2017

KEM

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“…It is clear that the process parameters (time and temperature) were affected the thicknesses of the boride layer and the transition zone. Other researchers [6][7][8][9][10] found that the boride layer thickness increased with the increasing boronizing time. Based on this finding, it can be conclude that the higher of boronizing temperature, the thicker borides layer formed on the surface of the specimen.…”

Section: Resultsmentioning

confidence: 99%

“…The hardness of surface for each sample is affected to this roughness test. A surface with a large Ra value will usually have high friction and low wear resistance [10] . Based on the data shown in figure 4, Ra value of As-cast specimen for both areas was increased from 1.1199µm to 1.4344µm.…”

Section: Figure1mentioning

confidence: 99%

The Effect of Surface Treatment on 0.16% Chromium and 1.32% Nickel Alloyed Ductile Iron (Di) through Boronizing Process

Yusof

Abdullah

Samion

et al. 2017

KEM

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This paper aim to investigate the effect on microstructure, hardness and wear (slurry erosion) of alloyed ductile iron (DI) with addition of 0.16% Chromium and 1.32% Nickel before and after boronizing process. The specimens were prepared by melting the Ductile Iron compositions through CO2 sand casting method. Specimens were fully coated with boronizing paste and heated at 850°C and 900°C for 8 hours holding time. Microstructures of the specimens were observed under Olympus BX 41M Optical Microscope. Vickers Micro Hardness Tester was used to determine the hardness of the specimens while Wear Test (Slurry Erosion) to measure the wear volume of each specimen. After boronizing process, the boron element diffused into the specimens which make the surface harden. The thickest boride layer was detected at sample with temperature 900°C. The samples of 900°C give higher hardness than temperature 850°C which is 2909 HV and 1395 HV respectively. Referring to surface roughness test, samples boronized at 900oC had high wear resistance compared to sample boronized at 850oC and as cast. The selection temperature in boronizing treatment can prevent the rate of wear thus can identify the hardness of surface in order to prolong the equipment and application or even structure.

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“…This technology is based on the electric discharge phenomena in the "metal-electrolyte" system and it is a special case of electrochemical machining that uses environmentally friendly electrolytes [15,16]. The workpiece is an anode connected to the DC supply [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Plasma-Electrolytic Processing on EDMed Austenitic Steels

et al. 2023

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This study investigates the effect of electrolytic plasma processing on the degree of defective layer removal from a damaged layer obtained after manufacturing operations. Electrical discharge machining (EDM) is widely accepted in modern industries for product development. However, these products may have undesirable surface defects that may require secondary operations. This work aims to study the die-sinking EDM of steel components followed by the application of plasma electrolytic polishing (PeP) to enhance the surface properties. The results showed that the decrease in the roughness of the EDMed part after PeP was 80.97%. The combined process of EDM and subsequent PeP makes it possible to obtain the desired surface finish and mechanical properties. In the case of finishing EDM processing and turning, followed by PeP processing, the fatigue life is enhanced without failure up to 109 cycles. However, the application of this combined method (EDM + PeP) requires further research to ensure consistent removal of the unwanted defective layer.

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Electrochemical and physical characteristics of the steel treated by plasma-electrolysis boronizing

Cited by 22 publications

References 22 publications

Effect of Pack Boronizing on Microstructure and Microhardness of 304 Stainless Steel

Effect of Pack Boronizing on Microstructure and Microhardness of 304 Stainless Steel

The Effect of Surface Treatment on 0.16% Chromium and 1.32% Nickel Alloyed Ductile Iron (Di) through Boronizing Process

Investigation of Plasma-Electrolytic Processing on EDMed Austenitic Steels

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