Year 2021, Volume 19 , Issue 1, Pages 1 - 9 2021-05-02

Effect of Building Direction on Mechanical Properties of Ti6al4v Parts Produced by Electron Beam Melting
Elektron Işınıyla Ergitme Yöntemiyle Üretilen Ti6Al4V Parçalarının Mekanik Özellikleri Üzerinde İnşa Yönünün Etkisi

Orhan GÜLCAN [1] , Selen TEMEL YİĞİTBAŞI [2] , Erhan İlhan KONUKSEVEN [3]


The aim of this study is to investigate the effect of building direction on mechanical properties of the parts fabricated using Ti6Al4V alloy powders by electron beam melting method. Three specimens in three different directions (X, Y and Z) were produced and to see the effect of surface roughness on mechanical properties, one of the samples in each direction were machined by lathe. The results of tension tests on samples produced in three directions according to ASTM E8 standard revealed that yield and tensile strength of the samples built in Z direction are higher than the related properties of the samples built in X and Y directions. Yield and tensile strength of the samples built in each of the direction comes out to be higher than the same properties of the wrought or cast Ti6Al4V parts. Specimens displayed a mixed ductile-brittle fracture characteristic and the microstructure is mainly Widmanstatten / basket weave and α lamellar microstructure was observed inside the prior β grains.
Bu çalışmanın amacı Ti6Al4V alaşım tozları kullanarak elektron ışınıyla ergitme yöntemiyle üretilen parçaların mekanik özellikleri üzerinde inşa yönünün etkisini araştırmaktır. Üç eksende (x, y ve z) numuneler üretilmiş ve yüzey pürüzlülüğünün mekanik özellikler üzerindeki etkisini görebilmek için her bir yöndeki bir numune tornalanmıştır. ASTM E8 standardına göre her bir yönde yapılan çekme testi sonuçlarına göre, z yönünde üretilen numunelerin akma ve çekme dayanımları, x ve y yönlerinde üretilenlere göre daha yüksek çıkmıştır. Her bir yönde üretilen numunelerin akma ve çekme dayanımları, dövme ya da döküm Ti6Al4V parçaların aynı özelliklerinden yüksek çıkmıştır. Numuneler sünek-kırılgan karışımı bir yapı göstermiş, mikroyapı genel olarak Widmanstatten / sepet örgüsü şeklinde çıkmış ve β taneciklerinin içerisinde α ince tanecikli mikroyapı görülmüştür.
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Primary Language tr
Subjects Engineering, Mechanical
Journal Section Araştırma, Geliştirme ve Uygulama Makaleleri
Authors

Orcid: 0000-0002-6688-2662
Author: Orhan GÜLCAN (Primary Author)
Institution: General Electric Aviation
Country: Turkey


Orcid: 0000-0001-7596-681X
Author: Selen TEMEL YİĞİTBAŞI
Institution: Orta Doğu Teknik Üniversitesi
Country: Turkey


Orcid: 0000-0002-3597-4222
Author: Erhan İlhan KONUKSEVEN
Institution: Orta Doğu Teknik Üniversitesi
Country: Turkey


Dates

Application Date : September 5, 2020
Acceptance Date : April 26, 2021
Publication Date : May 2, 2021

Vancouver Gülcan O , Temel Yiğitbaşı S , Konukseven E . Elektron Işınıyla Ergitme Yöntemiyle Üretilen Ti6Al4V Parçalarının Mekanik Özellikleri Üzerinde İnşa Yönünün Etkisi. Makina Tasarım ve İmalat Dergisi. 2021; 19(1): 1-9.