Microstructure transformation of Cr-Al-BN coating on low carbon steel prepared by ball milling method

Widayatno, Wahyu Bambang; Amal, Muhamad Ikhlasul; Affandi, Y; Sinaga, G S T; Fitroturokhmah, A.; Kusumaningrum, Retno

doi:10.1088/1757-899x/478/1/012004

Cited by 2 publications

(2 citation statements)

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“…The number of defects in 20Al-MA samples decreased and mainly distributed outside the coating (Figure 3(b)). This is attributed to the low quality ratio of Al powders as binders, which made the cold welding effect weak, so that the powders could not be well combined [17,18]. The 30Al-MA coating shows a highly compact composite structure and is free of porosity and holes (Figure 3(c)).…”

Section: Resultsmentioning

confidence: 99%

High temperature oxidation behaviour of mono-layer and bi-layer coatings

Guo

Shen

Feng

et al. 2020

Surface Engineering

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In the current work, the mono-layer Al-Cr-Ni coating and the bi-layer Al-Ni/Al-Cr coating were successfully synthesised on the Ti-6Al-4V alloy substrate by mechanical alloying. The effect of powder ratio was studied. The microstructure and phase composition of the two coatings were investigated. The mono-layer coating was composed of grey black composite structure. In the bi-layer coating, the Al-Cr outer layer exhibited a composite structure similar to the Al-Cr-Ni coating. The results showed the approximate thickness of Al-Cr-Ni coating was 140 μm, while that of bi-layer coating was more than 200 μm. Both coatings were well bonded to the substrate. After 850°C of cyclic oxidation for 100 h, cracks only occurred at the interface of the mono-layer coating, and no significant defects were found at the two interfaces of the bi-layer coating. The cyclic oxidation test results showed the bi-layer coatings exhibited more excellent oxidation resistance.

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Section: Resultsmentioning

confidence: 99%

High temperature oxidation behaviour of mono-layer and bi-layer coatings

Guo

Shen

Feng

et al. 2020

Surface Engineering

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“…During the first stages of the MA process, the impression force of the balls can deform the powder particles plastically and create new surfaces allowing the particles to bond together and thus results in an increment in the size of the particle [31]. For hard powders like nanosilica, the FSW method could be used for the production of composite-based nanostructures [32], but for ductile powders that tend to agglomerate, the ball mill acts better than FSW.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Cu-Substitution on the Microstructure and Magnetic Properties of Fe-15%Ni alloy Prepared by Mechanical Alloying

Abuchenari

Moradi

2019

jcc

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In this study, nanostructured (Fe 85 Ni 15) 100-x Cu x (x = 0, 0.5, 1.5, 3 and 5) powders were synthesized via mechanical alloying process. The obtained phases, microstructure, and magnetic properties of these alloys were studied by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), and vibration sample magnetometer (VSM). XRD results indicated that after a suitable time of milling, Ni and Cu were homogeneously distributed in the Fe matrix, and (bcc) α-(Fe(Ni-Cu)) solid solution was obtained. It was found that by increasing Cu content in the alloy, work hardening increased, and thus the size of grains decreased while the internal micro-strain increased. Also, morphological observations indicated that the addition of Cu led to the formation of finer particles. Also, VSM analysis showed that the addition of Cu into Fe-Ni alloys lowered Ms. On the other hand, the coercivity increased by increasing copper content up to 1.5 at. %.

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Microstructure transformation of Cr-Al-BN coating on low carbon steel prepared by ball milling method

Cited by 2 publications

References 10 publications

High temperature oxidation behaviour of mono-layer and bi-layer coatings

High temperature oxidation behaviour of mono-layer and bi-layer coatings

The Effect of Cu-Substitution on the Microstructure and Magnetic Properties of Fe-15%Ni alloy Prepared by Mechanical Alloying

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