Exploració per autor "Sefer, Birhan"
Ara es mostren els items 1-5 de 5
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Chemical milling effect on the low cycle fatigue properties of cast Ti-6Al-2Sn-4Zr-2Mo alloy
Sefer, Birhan; Gaddam, Raghuveer; Roa Rovira, Joan Josep; Mateo García, Antonio Manuel; Antti, Marta-lena; Pederson, Robert (2016-11-01)
Article
Accés obertThe current research work presents the chemical milling effect on the low cycle fatigue properties of cast Ti–6Al–2Sn–4Zr–2Mo alloy. Chemical milling treatment is one of the final steps in manufacturing titanium alloy ... -
Chemical milling of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo alloys in hydrofluoric-nitric acid solutions
Sefer, Birhan; Dobryden, Illia; Almqvist, Nils; Pederson, Robert; Antti, Marta-lena (2017-04-01)
Article
Accés restringit per política de l'editorialThe behavior of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo during chemical milling in hydrofluoric-nitric (HF-HNO3) acid solutions with 1:3 and 1:11 molar ratios was investigated using electrochemical and atomic force microscopy ... -
Environment related surface phenomena and their influence on properties of Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo : oxidation at elevated temperature and corrosion during chemical treatment
Sefer, Birhan (Universitat Politècnica de Catalunya, 2016-09-29)
Tesi
Accés obert
Realitzat a/amb: Luleå tekniska universitetThis thesis covers investigation of the surface phenomena of Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo alloys related with oxidation at elevated temperature and corrosion during chemical treatment in hydrofluoric-nitric acid (HF/HNO3) ... -
Evaluation of the bulk and alpha-case layer properties in Ti-6Al-4V at micro- and nano-metric length scale
Sefer, Birhan; Roa Rovira, Joan Josep; Mateo García, Antonio Manuel; Pederson, Robert; Antti, Marta-Lena (WILEY, 2016)
Capítol de llibre
Accés restringit per política de l'editorialIn the present study the hardness of individual alpha ( )-Ti grains in Ti-6Al-4V was measured by nanoindentation using Berkovich tip indenter. Additionally, alpha-case layer was induced by performing isothermal heat ... -
Influence of cyclic thermal treatments on the oxidation behavior of Ti-6Al-2Sn-4Zr-2Mo alloy
Fargas Ribas, Gemma; Roa Rovira, Joan Josep; Sefer, Birhan; Mateo García, Antonio Manuel (2018-11-01)
Article
Accés obertTi-6Al-2Sn-4Zr-2Mo is one of the most common titanium alloys for aerospace industry. This alloy experiences oxidation phenomenon at elevated temperatures. In the present study, cyclic thermal treatments were performed in ...