Browsing by Author "Sefer, Birhan"
Sefer, Birhan; Gaddam, Raghuveer; Roa Rovira, Joan Josep; Mateo García, Antonio Manuel; Antti, Marta-lena; Pederson, Robert (2016-11-01)
Open AccessThe 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)
Restricted access - publisher's policyThe 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)
Covenantee: 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, R; Antti, Marta-Lena (WILEY, 2016)
Part of book or chapter of book
Restricted access - publisher's policyIn 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 ...
Fargas Ribas, Gemma; Roa Rovira, Joan Josep; Sefer, Birhan; Mateo García, Antonio Manuel (2018-11-01)
Restricted access - publisher's policyTi-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 ...