Synthesis of titanium-based powders from machining waste by using the hydrogenation-dehydrogenation method için kapak resmi
Synthesis of titanium-based powders from machining waste by using the hydrogenation-dehydrogenation method
Başlık:
Synthesis of titanium-based powders from machining waste by using the hydrogenation-dehydrogenation method
Yazar:
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.
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.
Ayırtma: Copies: