Microstructure and dry sliding wear properties of 3Si-2Ni and 3Si-2Mn powder metallurgy steels with different graphite content

Tekeli, SÜLEYMAN; Gural, AHMET; Ozyurek, D.

doi:10.1177/1350650111405255

Microstructure and dry sliding wear properties of 3Si-2Ni and 3Si-2Mn powder metallurgy steels with different graphite content

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, cilt.225, sa.8, ss.814-820, 2011 (SCI-Expanded)

Yayın Türü: Makale / Özet
Cilt numarası: 225 Sayı: 8
Basım Tarihi: 2011
Doi Numarası: 10.1177/1350650111405255
Dergi Adı: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.814-820
Gazi Üniversitesi Adresli: Evet

Özet

In this study, plain iron powder (ASC.100.29) was mixed with 0.35-1.1% graphite +3%Si+2%Ni and 0.35-1.1% graphite+3%Si+2%Mn powders. While coarse pearlitic structure with homogeneous distribution of Mn was obtained in Mn-added specimens, Ni-rich austenitic areas with divorced pearlite structure were observed in Ni-added specimens. Wear tests were carried out at a load of 50 N. The experimental results showed that the highest wear resistance was obtained in the Ni-added specimen. While subsurface brittle cracking caused more wear in the Mn-added specimens, the wear occured by plastic deformation of surface Ni-added specimens.