Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Necip Ünlü"'
Autor:
Ahmet Odabaş, Necip Ünlü
Publikováno v:
International Journal of Metalcasting. 12:765-771
Although sand systems containing Na-silicate binder present several environmental and economic advantages, technological applications are restricted due to their poor knock-out properties and low moisture resistance. Thus, many investigations have be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf98f9e1557c0dc7634f38c6474bf0e4
https://doi.org/10.1007/s40962-018-0210-y
https://doi.org/10.1007/s40962-018-0210-y
Publikováno v:
Materials Science and Engineering: A. 559:731-741
CO 2 laser butt-welding of Co-base superalloy Haynes 188 was performed on 2.1 mm-thick sheets with an average grain size of 21 μm (ASTM #8). Nine different heat inputs in the range of 61.3–90.1 J mm −1 were used. The corresponding solidification
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c47bcdaaa349ca8506b92b47c87e2342
https://doi.org/10.1016/j.msea.2012.09.017
https://doi.org/10.1016/j.msea.2012.09.017
Publikováno v:
Refractories and Industrial Ceramics. 53:19-25
A self-flowing low-cement bauxite castable was prepared from 64 wt.% rotary Chinese bauxite and 10 wt.% Eczacibasi calcined alumina aggregates with additives of 5 wt.% Lafarge cement Secar 71, 8 wt.% Elkem microsilica 971U, and 0.05 wt.% dispersant D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fcb0eb2e2144fba9bc6a5aa3451a90e
https://doi.org/10.1007/s11148-012-9455-9
https://doi.org/10.1007/s11148-012-9455-9
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 42:812-824
Effects of TiC content and size on the microstructure, density, hardness and wear resistance of Al–4 wt.% Cu matrix composites were investigated. Al–4 wt.% Cu matrix composites were fabricated using two main processing routes of powder metallurgy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ec5d62e6395cb6fb1ac7f5c683e4c74
https://doi.org/10.1016/j.compositesa.2011.03.016
https://doi.org/10.1016/j.compositesa.2011.03.016
Publikováno v:
Metallurgical and Materials Transactions A. 41:2357-2365
The effect of heat input from laser beam welding (LBW) on the microstructural evolution of superalloy Inconel 718 was investigated. LBW was carried out on 1.6-mm-thick sheets with an average grain size of 13 μm (ASTM # 9.5), and four different heat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9132e952a26f83d34179eb5aa6199dd7
https://doi.org/10.1007/s11661-010-0319-y
https://doi.org/10.1007/s11661-010-0319-y
Autor:
L. Sezer, Niyazi Eruslu, C Göğtaş, Ş. Güner, Gultekin Goller, F Çınar, Necip Ünlü, Akın Odabaşı
Publikováno v:
Advances in Applied Ceramics. 109:6-11
type microsilica was developed. Optimum flow characteristics were achieved using water addition of 4?6 wt-%. This batch was sintered at different firing temperatures up to 1500uC. To understand the effect of both firing temperatures and corresponding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55796c2854b3713568b8b60539d05c31
https://doi.org/10.1179/174367609x422199
https://doi.org/10.1179/174367609x422199
Autor:
Necip Ünlü
Publikováno v:
Materials Characterization. 59:547-553
Obtaining clean, uniformly thin and high-quality TEM specimens entails a great deal of work that has a number of parameters that have to be considered carefully depending on specimen preparation technique(s). The parameters, such as voltage, current
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee0ed95cb21abe0a2daa5ea4e96a46ab
https://doi.org/10.1016/j.matchar.2007.04.003
https://doi.org/10.1016/j.matchar.2007.04.003
Publikováno v:
Metallurgical and Materials Transactions A. 38:2540-2551
This study investigates glass formation, phase equilibria, and thermodynamic descriptions of the Al-rich Al-Ce-Co ternary system using a novel approach that combines critical experiments, CALPHAD modeling, and first-principles (FP) calculations. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e1e3bd577f177bb2128b9603a480c83
https://doi.org/10.1007/s11661-007-9259-6
https://doi.org/10.1007/s11661-007-9259-6
Publikováno v:
Scopus-Elsevier
The present study reinvestigates the Al-Ce and Al-Nd phase diagrams and reoptimizes their thermodynamics using the CALPHAD method. First-principles energy calculations play an important role in terms of sublattice formalism and phase-stability predic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21ab36e5e843de80160478fadb002396
https://doi.org/10.1007/s11661-005-0001-y
https://doi.org/10.1007/s11661-005-0001-y
Autor:
Necip Ünlü
Publikováno v:
Practical Metallography. 42:470-475
Goldsmith has been practiced since as early as 4000 BC but the microstructure examination of precious metals is still an enigma to many metallographers. The precious metal industry, historically secretive, was slow to share technology. In this study,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40237aca9221e7cc47d582bfa1f939f7
https://doi.org/10.3139/147.100278
https://doi.org/10.3139/147.100278