Wear Behavior of Borided AISI D2 Steel under Linear Reciprocating Sliding Conditions

Yapıcı, Ahmet; Aydın, Sezgin; Koç, Vahdettin; Kanca, Erdoğan; Yıldız, Murat

doi:10.1134/s207020511902028x

Cited by 20 publications

(12 citation statements)

References 31 publications

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“…The lowest volumetric wear losses were observed at sample 954 under the load of 5 and 10 N and sample 856 under the load of 15 N. Under 15 N load, sample 954 exhibited the second lowest volumetric wear loss. According to the literature, as boriding temperature and time increase, volumetric wear loss occurs [17,35]. This interpretation was related to the thickness and hardness of the boride layers obtained.…”

Section: Roughness Cof and Reciprocating Dry Sliding Wear Testsmentioning

confidence: 72%

“…Table 5 shows that Q calculated in the present study was compared with the results detected in the literature. Activation energy values increased in high alloy steel due to the presence of alloying elements in grain boundaries that block the diffusion of boron atoms from the surface to the inside of the steel [34,35]. Since the steels used in references 44 and 45 are low alloy steel, their activation energies have lower values than the HMS used in this study.…”

Section: Diffusion Kineticsmentioning

confidence: 80%

“…The COFs of the BM were lower than those of the borided samples at all three test loadings. Although the COFs of sample 954 were lower than BM under the load of 5 and 10 N, the BM had lower COF than sample 954 under the load of 15 N. The COF can be affected by many parameters, such as the adhesion strength of the coating, hardness, roughness and distribution of phases occurred on the substrate surface [35]. Svahn et al found that rougher surfaces have higher COF [49].…”

Section: Roughness Cof and Reciprocating Dry Sliding Wear Testsmentioning

confidence: 99%

“…In addition, Sinha reported that manganese flattened out the saw-tooth morphology in carbon steel and prevented the boron diffusion [32]. The flat boride morphology appears on the surface of high alloying steel [3,9,24], since the presence of alloying elements in grain boundaries blocks the diffusion of boron atoms from the surface to the inside of the high alloy steel [34,35]. Figure 3 exhibits that Mn is densely accumulated in the saw-tooth boron layer.…”

Section: Microstructural Characterization and Xrd Analysismentioning

confidence: 99%

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Wear Behavior of Borided Cold-Rolled High Manganese Steel

Hayat

Sezgin

2021

Coatings

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In this study, a novel high-manganese steel (HMS) was borided at 850, 900 and 950 °C for 2, 4, and 6 h by the pack boriding process. Contrary to previous literature, borided HMS uncommonly exhibited saw-tooth morphology like low alloy steels, and manganese enhanced the boron diffusion. Another striking analysis is that the “egg-shell effect” did not occur. The present study demonstrated the silicon-rich zone for the first time in the literature by EDX mapping. Moreover, the formation mechanism of silicon-rich zones was explained and termed as “compact transfer of silicones (CTS)”. XRD analysis showed the existence of FeB, Fe2B, MnB and SiC phases. The boriding time and temperature increased the thickness of the boride layer from 31.41 μm to 117.65 µm. The hardness of the borided layer ranged from 1120 to 1915 HV0.05. The activation energy of borided HMS was found to be a very low result compared to high alloy steel investigated in the literature. The Daimler-Benz Rockwell-C adhesion test showed that adhesions of borided HMS surfaces are sufficient. The dry sliding wear tests showed that boriding treatment increased the wear resistance of untreated HMS by 5 times. The present study revealed that the boriding process extended the service life of HMS components.

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Section: Roughness Cof and Reciprocating Dry Sliding Wear Testsmentioning

confidence: 72%

Section: Diffusion Kineticsmentioning

confidence: 80%

Section: Roughness Cof and Reciprocating Dry Sliding Wear Testsmentioning

confidence: 99%

Section: Microstructural Characterization and Xrd Analysismentioning

confidence: 99%

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Wear Behavior of Borided Cold-Rolled High Manganese Steel

Hayat

Sezgin

2021

Coatings

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“…This avoids surface brittleness that can lead to crack formation. [5] In this view, pack hardening is demonstrated to effectively improve surface properties of the AISI D2 tool steel. [6] The halide activated pack cementation (HAPC) method is widely used for improving surface properties of metals and alloys.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Tribological and Mechanical Properties of the Si3N4 Coating Fabricated by Duplex Surface Treatment of Pack Siliconizing and Plasma Nitriding on AISI D2 Tool Steel

Najafizadeh

Ghasempour-Mouziraji

Sadeghi

et al. 2021

Metall Mater Trans A

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Silicon nitride (Si3N4) coating was deposited on AISI D2 tool steel through employing duplex surface treatments—pack siliconizing followed by plasma nitriding. Pack cementation was performed at 650 °C, 800 °C, and 950 °C for 2 and 3 hours by using various mixtures to realize the silicon coating. X-ray diffraction analyses and scanning electron microscopy observations were employed for demonstrating the optimal process conditions leading to high coating adhesion, uniform thickness, and composition. The optimized conditions belonging to siliconizing were employed to produce samples to be further processed via plasma nitriding. This treatment was performed with a gas mixture of 75 pct H2-25 pct N2, at the temperature of 550 °C for 7 hours. The results showed that different nitride phases such as Si3N4-β, Si3N4-γ, Fe4N, and Fe3N can be recognized as coatings reinforcements. It was demonstrated that the described composite coating procedure allowed to obtain a remarkable increase in hardness (80 pct higher with respect to the substrate) and wear resistance (30 pct decrease of weight loss) of the tool steel.

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