Comparison of dry sliding wear behavior and microstructural properties of AISI 8620 steel after gas carburization, gas nitriding, and pack boronization surface treatments

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dc.contributor.authorBasyigit, Aziz Baris
dc.contributor.authorSahin, Omer
dc.contributor.authorBayca, Salih Ugur
dc.contributor.authorKilicli, Volkan
dc.date.accessioned2026-01-24T12:29:13Z
dc.date.available2026-01-24T12:29:13Z
dc.date.issued2026
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractAISI 8620 steel is used in gears and machine parts where surface wear resistance is important. The presented study focuses on different surface hardening treatments on microstructural properties and the dry sliding wear behavior of the AISI 8620 steel. The dry sliding wear test used a tribometer with constant wear test parameters according to ASTM G-99 standard. The microstructures were characterized by optical and scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), and X-ray diffraction (XRD). The highest surface hardness (similar to 1,507 HV) occurs in the boronized sample, attributed to the hard, iron borides (FeB, Fe2B, Fe3B) layers. The minimum surface hardness (similar to 507 HV) is determined in nitrided samples. The maximum case hardening depth (similar to 0.90 mm) is obtained in nitrided samples, as the minimum value of case depth (similar to 0.1 mm) was found in boronized samples. The mean coefficient of friction was highest for nitrided (0.622) and lowest for boronized (0.367) samples. Boronizing also gave the minimum wear (1.705 mm3, 1 mg), compared with nitriding (13.5 mm3, 1.8 mg) and carburizing (43.57 mm3, 4.9 mg). The boronized samples exhibited the best wear properties. According to the optical profilometer results of worn samples; the carburized sample exhibits a broad and deep wear track (volume loss 43.57 mm3), indicating severe abrasive wear due to lower surface hardness, the boronized sample showed the narrowest and shallowest wear track (volume loss 1.705 mm3), because of superior wear resistance from the dense, hard iron boride layer while the nitrided sample having moderate wear depth and volume loss (13.5 mm3), indicating intermediate wear resistance attributed to a thinner, harder nitride layer providing moderate protection.
dc.identifier.doi10.1515/mt-2025-0316
dc.identifier.endpage49
dc.identifier.issn0025-5300
dc.identifier.issn2195-8572
dc.identifier.issue1
dc.identifier.scopus2-s2.0-105024220694
dc.identifier.scopusqualityQ2
dc.identifier.startpage37
dc.identifier.urihttps://doi.org/10.1515/mt-2025-0316
dc.identifier.urihttps://hdl.handle.net/20.500.12868/5216
dc.identifier.volume68
dc.identifier.wosWOS:001631104200001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWalter De Gruyter Gmbh
dc.relation.ispartofMaterials Testing
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260121
dc.subjectAISI 8620 steel
dc.subjectwear behavior
dc.subjectsurface hardening
dc.subjectcarburizing
dc.subjectnitriding
dc.subjectboronizing
dc.titleComparison of dry sliding wear behavior and microstructural properties of AISI 8620 steel after gas carburization, gas nitriding, and pack boronization surface treatments
dc.typeArticle

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