Effect of tempering temperature on mechanical properties and microstructure of AISI 4140 and AISI 4340 tempered steels
Küçük Resim Yok
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Walter De Gruyter Gmbh
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The AISI 4140 and AISI 4340 tempered steels are widely used in industry. This study investigated the effects of the tempering temperature on the mechanical properties of these steels. The steels were kept at 850 degrees C for 30 min, left in an oil environment, and then subjected to hardening. The samples were then tempered for 1 h at four different temperatures (300, 450, 550, and 650 degrees C). Hardness measurements were performed to determine the mechanical properties of the materials. In addition, the samples were subjected to tensile, notch impact, and wear tests. The samples were also examined microstructurally. The results revealed that the hardness, impact energy, and wear rates of samples of both steels decreased when tempering was applied after quenching. As the tempering temperature was increased, these values tended to decrease. However, the impact value increased in parallel with the tempering heat treatment and tempering temperature.
Açıklama
Anahtar Kelimeler
Hardness; Impact Energy; Microstructure; Tempering Temperature; Wear, Heat-Treatment; Alloy-Steel
Kaynak
Materials Testing
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
64
Sayı
6
