A comparative study on the high-temperature forming and constitutive modeling of Ti-6Al-4V

Name: A comparative study on the high-temperature forming and constitutive modeling of Ti-6Al-4V
Author: Uz, M. M., Hazar Yoruç, A. B., Aydoğan, C. S., Yapıcı, Güney Güven

İsim	A comparative study on the high-temperature forming and constitutive modeling of Ti-6Al-4V
Yazar	Uz, M. M., Hazar Yoruç, A. B., Aydoğan, C. S., Yapıcı, Güney Güven
Basım Tarihi:	2022-09-28
Basım Yeri	- Springer
Konu	Constitutive modeling, Hot forming, Material characterization, Ti-6Al-4V alloy
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1059-9495
Kayıt Numarası	3e739fdc-dbeb-4534-a88f-792fc812e7cb
Lokasyon	Mechanical Engineering
Tarih	2022-09-28
Notlar	Ozyegin University ; Turkish Aerospace Industries ; Türk Havacılık ve Uzay Sanayii ; TÜBİTAK
Örnek Metin	Ti-6Al-4V alloy is often preferred for high-performance components such as aerospace components due to its superior material properties and thermal resistance. In order to produce these components in the desired geometry, it is very important to determine the high-temperature thermomechanical properties of Ti-6Al-4V. In order to define these properties, uniaxial tensile tests at strain rates of 0.001, 0.01 and 0.1 s−1 at 700, 750 and 800 °C were applied in this study. In tests performed at a strain rate of 0.001 s−1 at 800 °C, an elongation at break above 0.8 representing a dominant ductile behavior is observed. It is clearly demonstrated that the initial 17.32% β phase reaches 31.02% at 800 °C, and the α grain size increases with temperature. Existence of dimples and voids in the fracture surfaces are an indicator of increased ductility behavior. In addition to the Modified Johnson–Cook model, which is widely used for modeling flow stress, the use of the extended Ludwik equation is suggested in this study. According to the correlation coefficient (R), it is claimed that the Extended Ludwik model is a more suitable approach for modeling the mechanical behavior for the studied forming temperature range.
DOI	10.1007/s11665-022-07426-8
Cilt	32

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A comparative study on the high-temperature forming and constitutive modeling of Ti-6Al-4V

Yazar Uz, M. M., Hazar Yoruç, A. B., Aydoğan, C. S., Yapıcı, Güney Güven

Basım Tarihi 2022-09-28

Basım Yeri - Springer

Konu Constitutive modeling, Hot forming, Material characterization, Ti-6Al-4V alloy

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1059-9495

Kayıt Numarası 3e739fdc-dbeb-4534-a88f-792fc812e7cb

Lokasyon Mechanical Engineering

Tarih 2022-09-28

Notlar Ozyegin University ; Turkish Aerospace Industries ; Türk Havacılık ve Uzay Sanayii ; TÜBİTAK

Örnek Metin Ti-6Al-4V alloy is often preferred for high-performance components such as aerospace components due to its superior material properties and thermal resistance. In order to produce these components in the desired geometry, it is very important to determine the high-temperature thermomechanical properties of Ti-6Al-4V. In order to define these properties, uniaxial tensile tests at strain rates of 0.001, 0.01 and 0.1 s−1 at 700, 750 and 800 °C were applied in this study. In tests performed at a strain rate of 0.001 s−1 at 800 °C, an elongation at break above 0.8 representing a dominant ductile behavior is observed. It is clearly demonstrated that the initial 17.32% β phase reaches 31.02% at 800 °C, and the α grain size increases with temperature. Existence of dimples and voids in the fracture surfaces are an indicator of increased ductility behavior. In addition to the Modified Johnson–Cook model, which is widely used for modeling flow stress, the use of the extended Ludwik equation is suggested in this study. According to the correlation coefficient (R), it is claimed that the Extended Ludwik model is a more suitable approach for modeling the mechanical behavior for the studied forming temperature range.

DOI 10.1007/s11665-022-07426-8

Cilt 32