Microstructure and phase composition of Fe-B-Al coatings on low carbon steel prepared by using mechanical alloying technique

Sundawa, R.; Aryanto, Didik; Sudiro, Toto

doi:10.1088/1742-6596/817/1/012071

Cited by 4 publications

(6 citation statements)

References 4 publications

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“…The higher composition of Al in FeB-Al coating results in thicker coating. An interdiffusion layer, which is composed of intermetallic phases, is formed in FeB-50 at.% Al coating after heat treatment [18].…”

Section: Materials and Measurement Proceduresmentioning

confidence: 99%

Research of structure and properties of boride hardening coatings

Дмитриев¹,

Sagalakov²,

Grigor'ev³

et al. 2018

Proceedings of the International Conference "Aviamechanical Engineering and Transport" (AVENT 2018)

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Strengthening of parts and units of machines, increased reliability and longer service life are an important task of modern aerospace industry. As promising materials for protective-strengthening coatings, matrix composites based on ternary system Fe-B-FenB are offered. The aim of the research was to apply boride coatings on the surface of steel parts. Relevance is conditioned by the necessity to harden the surface of steel used in high-load conditions. Samples of coatings on 65 G grade steel, applied by HFC-heating, were obtained. Research of samples with different coatings studied using the metallurgical microscope was carried out. Research data on samples with different coatings applied by means of an eddy current measuring system were obtained and conclusion on electrical conductivity distribution along the sample surface depending on flux quantitative content during boriding was made.

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Section: Materials and Measurement Proceduresmentioning

confidence: 99%

Research of structure and properties of boride hardening coatings

Дмитриев¹,

Sagalakov²,

Grigor'ev³

et al. 2018

Proceedings of the International Conference "Aviamechanical Engineering and Transport" (AVENT 2018)

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“…The adverse characteristic of low carbon steel is low corrosion and oxidation resistance mostly at high temperature, so that its application in oxidizing environment at elevated temperatures becomes limited. In general, there are two approaches which can be used to improve the high-temperature oxidation resistance of steel, namely coating deposition and alloy enrichment [1,2]. The main advantages of coating deposition than alloy enrichment are that it can maintain the steel mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…The main advantages of coating deposition than alloy enrichment are that it can maintain the steel mechanical properties. Therefore, this method is often used to improve the oxidation and corrosion resistance of steels [1][2].…”

Section: Introductionmentioning

confidence: 99%

“…As the milling time increases, the collision of balls and powder can reduce the powder particle size from micro to nano [3], leading to high dense and uniform coating structure also strong adhesiveness between coating and substrate [1]. Recently, the MA method was successfully applied to deposit Cr-Al [1,4,8], Fe-B-Al [2], Fe-Al [5], NiAl [6] and Ti-Al [7] on the metallic substrate. The coating material and its composition are an important factor influencing the coating performance.…”

Section: Introductionmentioning

confidence: 99%

“…Previously, our group studied the preparation of Cr-Al coating on the surface of low carbon steel [1,8] since the Chromium (Cr) and Aluminum (Al) are significant element to increase the corrosion and oxidation resistance of alloys and coatings. They play an important role to prevent the diffusion of oxygen to substrate, because they can act as reservoir for the formation of protective Cr 2 O 3 and Al 2 O 3 scales, respectively [1,2,4].…”

Section: Introductionmentioning

confidence: 99%

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The effect of annealing on structure and hardness of (Fe-Cr)-50 at.% Al coatings synthesized by mechanical alloying

Ciswandi

Aryanto²,

Irmaniar³

et al. 2018

AIP Conference Proceedings

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The effect of nitrogen gas flow rate on heat treatment of AISI Abstract. In this research, the deposition of (Fe-Cr)-50at.% Al coatings on low carbon steel was carried out by a mechanical alloying (MA) technique. The MA was performed in a shaker mill for 4 hours. Two types of Fe-Cr powders as starting material were used, high purity Fe-Cr powders: (Fe-12.5Cr)-50Al and (Fe-25Cr)-50Al, and Fe-Cr lump powder: (50FeCr)-50Al (in at.%). The coated samples were then annealed in a vacuum furnace at 700 o C for 1h. The characterizations of coating structure before and after annealing were studied by XRD and SEM-EDX, while the coating hardness was measured by micro-Vickers hardness tester. Before annealing, all of coating composition were composed mainly of (Fe,Cr)Al phase. After annealing, the FeAl and Fe0.99Cr0.02Al0.99 intermetallic phases was formed in the (Fe-12.5Cr)-50Al and (Fe-25Cr)-50Al coatings. In addition, Fe2CrAlwas also found in the (Fe-25Cr)-50Al coating. Whilethe AlCr2 intermetallic phase was detected as the main phase of (50FeCr)-50Al coating. The cross-sectional microstructure showed that the (Fe-12.5Cr)-50Al and (Fe-25Cr)-50Al coatings have a smoother structure compared to (50FeCr)-50Al coating. The annealing led to intermetallic phase formation and an increasing coating hardness.

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Research of structure and properties of boride hardening coatings

2019

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High strength aluminum alloys are particularly suitable as lightweight materials in vehicle and aircraft engineering. The wear resistance of materials can be improved by surface and coating technology. Strengthening of parts and units of machines, increased reliability and longer service life is an important task of modern industry. The aim of research was to apply boride coatings on surface of steel parts. Timeliness is subject to necessity to harden surface of steel used in high-load conditions. Samples of coatings on 65 G grade steel, applied by HFC-heating, were obtained. Research of samples with different coatings by means of metallurgical microscope was carried out. Data on samples with different coatings research by means of an eddy current measuring system was obtained and conclusion on electrical conductivity distribution along the sample surface depending on flux quantitative content during boriding was made.

show abstract

Microstructure and phase composition of Fe-B-Al coatings on low carbon steel prepared by using mechanical alloying technique

Cited by 4 publications

References 4 publications

Research of structure and properties of boride hardening coatings

Research of structure and properties of boride hardening coatings

The effect of annealing on structure and hardness of (Fe-Cr)-50 at.% Al coatings synthesized by mechanical alloying

Research of structure and properties of boride hardening coatings

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