Sinterleme, Yaşlandırma Ve Kriyojenik Isıl İşlemlerinin Aa2014-B4c Kompozit Yapısına Ve Mekanik Özelliklerine Etkileri

Öz

Bu çalışmada, gaz atomizasyon yöntemi ile üretilen AA2014 alaşım tozlarına, basınçlı infiltrasyon yöntemiyle, %10 ve %20 B4C takviye edilerek kompozit yapı elde edilmeye çalışılmıştır. Üretilen AA2014-B4C kompozit yapısına uygulanan; sıvı faz sinterleme, yaşlandırma ve kriyojenik soğutma işlemlerinin sertliğe ve mikro yapıya etkileri belirlenmeye çalışılmıştır. Mikro yapıların incelemelerinde SEM ve MAP analizlerinden yararlanılarak, ısıl işlemlerin mikro yapı etkileri belirlenmeye çalışılmıştır. Kriyojenik soğutma işlemi sonrasında elde edilen sertlik değerleri, sinterleme ve yaşlandırma sonrasında elde edilen sertlik değerlerinden yüksek çıkması, kriyojenik işlemin bilhassa yaşlandırılabilir alaşımlar üzerinde etkin rol oynayabileceğini göstermektedir.

Anahtar Kelimeler

• AA2014, Kriyojenik, Yaşlandırma

Kaynakça

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