Ti6Al4V Alaşımı ve Saf Titanyumun (Cp-Ti) Oksidasyon Kinetiği

Year 2020, Volume: 7 Issue: 2, 402 - 409, 31.05.2020

Aysun Ayday

https://doi.org/10.31202/ecjse.648678

Cited By: 3

Abstract

Ti6Al4V alaşımı ve Saf Titanyumun  (Cp-Ti) açık atmosferde 600, 650 ve 700 °C
için,  1, 2, 4, 8, 16, 24, 48, 72 saat
sürelerinde oksidasyon kinetiği davranışları incelenmiştir. Oksidasyon işlemi
sonrası numune yüzeyleri X-ray difraksiyonu (XRD), taramalı elektron mikroskobu
(SEM) ve enerji dispersive spektroskopisi (EDS) yardımı ile incelenmiştir. Ti6Al4V alaşımı ve saf
Ti oksidasyon işlemi sonrasında başarı ile kaplanmıştır. Oksidasyona uğratılan
numunelerin aktivasyon enerjileri hesaplanmıştır. Ti6Al4V için aktivasyon
enerjisi 201.3kJ/mol, Cp-Ti için ise 269.4kJ/mol hesaplanmıştır.

Keywords

Oksidasyon tabakası, oksidayon kinetiği, titanyum

Supporting Institution

Sakarya Üniversitesi

Thanks

Çalışma sırasında laboratuvar imkânlarından yararlandığımız Sakarya Üniversitesi, Mühendislik Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüne teşekkürü bir borç biliriz.

Oxidation Kinetics of Ti6Al4V Alloy and Pure Titanium (Cp-Ti)

Abstract

The oxidation kinetics behavior of Ti6Al4V alloy and pure Ti (Cp-Ti) were investigated under air atmosphere at temperatures of 600, 650 and 700 °C for 1, 2, 4, 8, 16, 24, 48, 72 h have been identified in the study. The oxidized samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM). After thermal oxidation, a thin oxide layer was formed on the surfaces and oxygen diffusion took place into the metal. The oxide layer formed rutile and anatase (TiO2) form. The thickness of the oxide layer increased with increasing the oxidation temperature and time The activation energies for oxidation were estimated for Ti6Al4V alloys and Cp-Ti, 201.3kJ/mol for Ti6Al4V and 269.4kJ/mol for Cp-Ti were found, respectively. 

Keywords

Oxide layers, kinetic study

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