Değişik karışım oranlarına göre ZDDP katkı maddesinin aşınma önleyici veriminin araştırılması

Yıl 2019, Cilt: 34 Sayı: 4, 2045 - 2060, 25.06.2019

Doğuş Özkan

https://doi.org/10.17341/gazimmfd.419605

Öz

İçten yanmalı motorlarda sürtünmeyi azaltmak ve hareketli parçaları
aşınmadan korumak maksadıyla baz yağ ve katkı maddelerinden oluşan yağlama
yağları kullanılmaktadır. ZDDP yağlama yağları içerisinde aşınmayı azaltma ve
önleme konusunda görevli günümüzde ticari motor yağları içerisinde en çok
kullanılan katkı maddesidir. Ancak bu katkı maddesi çevreye zararlı fosfor
elementi içermekte ve araç katalitik konvertörlerini zehirlemektedir. Bu çalışmada
yağlama yağlarının içeriğindeki ZDDP oranı azaltarak zehirlemenin etkilerini
azaltmak maksadıyla % 1, 3 ve 5 oranları gibi düşük konsantrasyonlardaki baz
madeni yağ ZDDP karışımlarının aşınma performansları tribometre testleri ve
yüzey analizleri ile araştırılmıştır. Çalışma sonuçları % 3 ve 5 ZDDP+ baz yağ
karışımının aşınma önleyici tribofilmi yüzeyde oluşturduğu ve birbirine yakın
aşınma oranları ile yağlama yağlarının içerisinde kullanılabileceğini
göstermiştir.

Anahtar Kelimeler

ZDDP, katalitik konvertör, aşınma oranı, tribofilm

Kaynakça

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