Synthesis of titanium-based powders from machining waste by using the hydrogenation-dehydrogenation method
tarafından
 
Çuhadaroğlu, Zeynep, author.

Başlık
Synthesis of titanium-based powders from machining waste by using the hydrogenation-dehydrogenation method

Yazar
Çuhadaroğlu, Zeynep, author.

Yazar Ek Girişi
Çuhadaroğlu, Zeynep, author.

Fiziksel Tanımlama
xi, 68 leaves: charts;+ 1 computer laser optical disc

Özet
Sustainability and recycling activities have gained importance in almost every field all over the world. Many studies are conducted to recycle titanium and titanium alloys owing to their outstanding properties like low density, biocompatibility, corrosion resistance, and high strength-to-weight ratio. Although they offer superior properties, their usage is limited due to their high production cost and potential to generate waste, and therefore, recycling activities in this area should be expanded using an appropriate method. Cold hearth melting, vacuum arc re-melting, and hydrogenation and dehydrogenation process are widely used for recycling titanium scraps in industry. Among them, the hydrogenation and dehydrogenation (HDH) process has a significant environmental and economic impact. In this thesis, titanium powders were synthesized from additive manufacturing turnings. Ti-6Al-2Sn-4Zr-6Mo turnings were used as starting materials on which HDH characteristics were not investigated in the literature. Both hydrogenation and dehydrogenation parameters were studied to reach optimum conditions. Our results revealed that hydrogenation was accomplished at 500 °C for 120 minutes with 5 °C/minute heating rate. The optimum dehydrogenation condition was found at 600 °C for 90 minutes. Ti-6Al-2Sn-4Zr-6Mo powder with average 56 μm particle size was synthesized; however, hydrogen and oxygen concentrations in the powder were not at the desired level and non-spherical shaped powders were produced end of the process.

Konu Başlığı
Metallurgical analysis
 
Titanium

Yazar Ek Girişi
Genç, Aziz,
 
Gökelma, Mertol,

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Materials Science and Engineering.

Tek Biçim Eser Adı
Thesis (Master)--İzmir Institute of Technology:Materials Science and Engineering.
 
İzmir Institute of Technology: Materials Science and Engineering--Thesis (Master).

Elektronik Erişim
Access to Electronic Versiyon.


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