Microstructure evolution in crystal plasticity strain path effects and dislocation slip patterning



Microstructural evolution and room-temperature mechanical properties of as-cast and heat-treated Fe50Al50-nNbn alloys (n=1, 3, 5, 7, and 9 at%)
Yıldırım, Mehmet; Akdeniz, Mahmut Vedat; Mehrabov, Amdulla (2016-05-10)
The microstructural evolution and room-temperature mechanical properties of Fe50Al50-nNbn alloys (n=1, 3, 5, 7, and 9 at%) were investigated after solidification and subsequent heat treatment. For all the compositions, the (Fe, Al)(2)Nb Laves phase formed because of the incomplete solid solubility of Nb in the Fe-Al-based phases and tended to develop an eutectic mixture with the Fe-Al-based phase. According to the results of EDS analysis and microstructural investigations, the Nb concentration of the eutect...
Microstructure hierarchy - Mechanical property relationship for hypereutectic Al-Si alloy powders solidified far from equilibrium
Kalay, Yunus Eren; Chumbley, L.s. (2006-12-01)
Microstructural selection in aluminum silicon powder alloys can directly influence the consolidated materials' mechanical properties. However, due to processing and characterization difficulties, a complete understanding of powder microstructure as a function of undercooling and solidification velocity, and the role microstructure plays on mechanical properties, remains an elusive goal. In this study high pressure gas atomization processing was used to produce rapidly solidified hypereutectic Al-Si alloys. ...
Microstructure and nanomechanical behavior of sputtered CuNb thin films
Abboud, Mohammad; Motallebzadeh, Amir; Duygulu, Özgür; Maaß, Robert; Özerinç, Sezer (2021-09-01)
We report on the mechanical properties of Cu–Nb alloys produced by combinatorial magnetron sputtering. Depending on the composition, the microstructure is either fully amorphous (~30–65 at.% Cu), a dispersion of Cu crystallites in an amorphous matrix (~70 at.%), or a dominant crystalline phase with separated nanoscale amorphous zones (~80 at.% Cu). Nanomechanical probing of the different microstructures reveals that the hardness of the fully amorphous alloy is much higher than a rule of mixture would predic...
Microstructural properties and local atomic structures of cobalt oxide nanoparticles synthesised by mechanical ball-milling process
AKSOY, FUNDA; AKGÜL, GÜVENÇ; Kurban, Mustafa (Informa UK Limited, 2016-01-01)
In this study, facile preparation of pure and nano-sized cobalt oxides particles was achieved using low-cost mechanical ball-milling synthesis route. Microstructural and morphological properties of synthesised products were characterised by X-ray diffraction (XRD) and transmission electron microscopy (TEM) techniques. XRD results indicated that the fabricated samples composed of cubic pure phase CoO and Co3O4 nanocrystalline particles with an average crystallite size of 37.2 and 31.8nm, respectively. TEM im...
Microstructure and mechanical properties of squeeze cast intermetallic magnesium silicide dispersed aluminum-silicon-magnesium alloys
Soyer, Önder Muzaffer; Sarıoğlu, Filiz; Kalkanlı, Ali; Department of Metallurgical and Materials Engineering (1997)
Citation Formats
T. Yalçınkaya, Microstructure evolution in crystal plasticity strain path effects and dislocation slip patterning. 2011.