Ti6Al4V ALAŞIMININ FİBER LAZER KAYNAK KABİLİYETİ

Bu çalışmada, Ti6Al4V titanyum alaşımı levhalar fiber lazer kaynak yöntemiyle birleştirilmiştir. Farklı ısı girdisi şartlarının, fiber lazer kaynaklı birleştirmelerin metalurjik ve mekanik özelliklerine etkileri incelenmiştir. Yüksek ısı girdisi ile birleştirilen numunenin kaynak metalinde düşük ısı girdisiyle birleştirilen numunenin mikroyapısına göre bir miktar tane irileşmesi meydana geldiği, kaynak metalinde birincil α yapılarının hacim oranının arttığı gözlenmiştir. Düşük ısı girdisiyle birleştirilen numunenin kaynak metali mikroyapısı basketweave ya da asiküler α' ve tane sınırlarında birincil β tanelerinden meydana gelmiştir. Düşük ısı girdisiyle birleştirilen numunenin çekme dayanımı, yüksek ısı girdisiyle birleştirilen numuneye göre yüksek bulunurken sünekliği daha az bulunmuştur. 

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