The Effect of Solid Boriding Time on the Structure, Hardness and Corrosion Properties of AISI 5140 Steel
Yükleniyor...
Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
MAIK NAUKA/INTERPERIODICA/SPRINGER
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, AISI 5140 steel samples were borided in an electrical furnace at a temperature of 950 degrees C for 4, 6 and 8 h. Structural examinations, hardness measurement and corrosion tests were performed to determine the effect of the boriding time on the microstructure, hardness and corrosion resistance of the steel surface. It was observed that 4 h of boriding treatment resulted in the forming of Fe2B layer on the surface of the AISI 5140 steel. However, when the boriding time exceeded 4 h, FeB phase formed on the surface layer of the steel in addition to the Fe2B phase. It was also observed that both the thickness and hardness of the boride layer increased with the increasing boriding time. The hardness values of the borided sample surface were approximately seven times greater than unborided AISI 5140 steel. The samples subjected to boriding for 4 h showed higher corrosion resistance than the unboriding steel samples. But boriding time of more than 4 h caused a decrease in the corrosion resistance of the AISI 5140 steel.
Açıklama
Anahtar Kelimeler
AISI 5140 steel, boriding, hardness, corrosion, baybora-1
Kaynak
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
56
Sayı
3
Künye
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