Hızlandırılmış Erozyon Testleriyle Malzemelerin Kavitasyon Erozyonu Özelliklerinin İncelemesi
Bu çalışmada, kavitasyon ve kavitasyonun en olumsuz ve zararlı etkilerinden birisi olan kavitasyon
erozyonunun deneysel olarak incelenmesi sunulmaktadır. Bu bağlamda, kavitasyon erozyonu oluşumu
açıklanmış ve erozyon testlerinde kullanılan bazı matematiksel parametreler; kavitasyon sayısı,
erozyon hızı ve erozyon şiddeti incelenmiştir. Farklı malzemelerin kavitasyon erozyonuna karşı
dirençlerini test etmede kullanılan beş farklı yöntem bulunmaktadır. Bunlar en basitinden en gelişmiş
olana doğru sıralanırsa, döner diskli cihaz ile gerçekleştirilen testler, titreşim cihazları ile ultrasonik
ortam oluşturularak gerçekleştirilen testler, hava jeti tekniği, su jeti (kavitasyon jeti) tekniği ve
kavitasyon tüneli testleridir. Çalışma kapsamında bu beş teknik incelenerek literatürden elde edilen
örneklerle anlatılmıştır. Hava jeti tekniği ve su jeti tekniğine özel ilgi gösterilmiş, çalışma kapsamında
İTÜ Gemi İnşaatı ve Deniz Bilimleri Fakültesi’nde kurulan hava jeti ve su jeti deney düzenekleri ile
gerçekleştirilen testlerden örnekler sunulmuştur.
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