AISI D6 çeliğinin adhesif aşınma davranışına ısıl işlem şartları ve kayma hızlarının etkileri

Bu çalışmada, AISI D6 çeliğinin adhesif aşınma davranışına uygulanan tavlama ve normalizasyon ısılişlemlerinin etkileri araştırılmıştır. Normalizasyon işleminde, çelik numuneler, 900 ve 950˚C’de 30 dakikaöstenitlenmiş ve daha sonra havada soğumaya bırakılmıştır. Numune 850˚C’de 30 dakika süreyle tavlanmıştır.Adhesif aşınma testleri, disk üzerinde pim cihazında, 20 ve 40N yük altında 1 ve 1.5 m s -1kayma hızlarındagerçekleştirilmiştir. Tavlanmış numune adhesif aşınma direncinde ve sertliğinde azalma göstermiştir. Normalizeedilmiş numunelerin adhesif aşınma direnci ve sertliği 900˚C’de 30 dakikada artmış, ancak 950˚C’de 30dakikada sertlik ve aşınma direnci azalmıştır.

Effects of heat treatment conditions and sliding speeds on the adhesive wear behavior of AISI D6 steel

In this study, effects of wear speeds on the adhesive wear behavior of heat treated AISI D6 steel wereinvestigated. In normalization, steel specimens were austenitized at 900 and 950 ºC for 30 minutes and then air- cooled. Sample was annealed at 850 ºC for 30 minutes. Adhesive wear tests were performed by pin-on-discadhesive wear tester under loads of 20 and 40 N at a sliding speeds of 1 and 1.5 m s -1 . Annealed sample showeddecreasing adhesive wear resistance and hardness. Adhesive wear resistance and hardness of normalizedspecimen increased up to 900 ºC for 30 minutes, but it decreased at 950 ºC for 30 minutes.

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