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2017-10-27
12:56
OpenAccess [PUBDB-2017-11592] Journal Article
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Thermodynamic instability of a nanocrystalline, single-phase TiZrNbHfTa alloy and its impact on the mechanical properties
ddc:670
An equiatomic, single-phase TiZrNbHfTa high-entropy alloy was subjected to high-pressure torsion,leading to a grain size below 100 nm. Introducing a nanocrystalline microstructure to the material shouldhelp to accelerate a possible phase decomposition of the material by having a high amount of fastdiffusion pathways and possible nucleation sites in the form of grain boundaries. [...]
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2017-10-25
17:35
[PUBDB-2017-11557] Journal Article
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Phase evolution and carbon redistribution during continuous tempering of martensite studied with high resolution techniques
ddc:600
Using high resolution techniques, such as, 3D atom probe tomography, transmission electron microscopy and synchrotron radiation, the continuous tempering process of a 50CrMo4 steel is analyzed. Differences of continuous heating compared to isothermal holding at certain tempering temperatures are discussed. [...]
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2017-10-09
17:07
OpenAccess [PUBDB-2017-11230] Journal Article
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Wetting of Sn-Zn-Ga and Sn-Zn-Na Alloys on Al and Ni Substrate
ddc:670
Wetting of Al and Ni substrate by Sn-Zn eutectic-based alloys with 0.5 (wt.%)of Ga and 0.2 (wt.%) of Na was studied using the sessile drop method in thepresence of ALU33 flux. Spreading tests were performed for 60 s, 180 s, and480 s of contact, at temperatures of 503 K, 523 K and 553 K (230C, 250C,and 280C). [...]
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2017-10-05
12:14
[PUBDB-2017-11171] Contribution to a conference proceedings/Contribution to a book
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Effect of the Zn Content on the Compression Behaviour of Mg$_{5}$Nd(Zn): An In Situ Synchrotron Radiation Diffraction Study
Magnesium Technology 2017 / Solanki, Kiran N. ; Orlov, Dmytro ; Singh, Alok ; Neelameggham, Neale R. , Cham : Springer International Publishing, 2017
The 2017 TMS Annual Meeting & Exhibition: Magnesium Technology 2017, TMS 2017, Meeting locationSan Diego, USA, 26 Feb 2017 - 2 Mar 20172017-02-262017-03-02
Cham : Springer, The Minerals, Metals & Materials Series, 675-681 (2017) [10.1007/978-3-319-52392-7_93]  GO
ddc:620
The properties of commercially viable Mg alloys are not sufficient for many of the envisaged applications. The combination of Zn and rare earth metals is one of the most effective ways to enhance the mechanical properties of Mg alloys. [...]
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2017-10-05
11:53
OpenAccess [PUBDB-2017-11170] Journal Article
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Formation of a Quasicrystalline Phase in Al–Mn Base Alloys Cast at Intermediate Cooling Rates
ddc:670
Al-rich 94Al–6Mn and 94Al–4Mn–2Fe alloys were suction-cast to evaluate thefeasibility of obtaining bulk quasicrystal-strengthened Al-alloys at intermediatecooling rates alloyed with non-toxic, easily accessible and affordable additions.The influence of different cooling rates on the potential formation of a quasicrystallinephase was examined by means of scanning and transmissionelectron microscopy, X-ray diffraction and differential scanning calorimetry.Increased cooling rates in the thinnest castings entailed a change in samplephase composition. The highest cooling rates turned out to be insufficient toform an icosahedral quasicrystalline phase (I-phase) in the binary alloy. [...]
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2017-09-04
16:22
[PUBDB-2017-10305] Journal Article
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Severe Plastic Deformation by Equal Channel Angular Pressing and Rolling: The Influence of the Deformation Path on Strain Distribution
ddc:540
The present work compares two deformation techniques, rolling and EqualChannel Angular pressing (ECAP), and the response offered by three differentmaterials that differ in Stacking Fault Energy (SFE): AA1010 Al, commerciallypure Cu, and an austenitic stainless steel. The objective of this investigationis to study the effect of each deformation mode on tensile behavior,deformation mechanism, texture, and microstructure and to establish theinfluence of the stacking fault energy on said effects. [...]
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2017-09-04
15:23
[PUBDB-2017-10303] Journal Article
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Ion irradiation effects on a magnetic Si/Ni/Si trilayer and lateral magnetic-nonmagnetic multistrip patterning by focused ion beam
ddc:610
Fabrication of a multistrip magnetic/nonmagnetic structure in a thin sandwiched Ni layer [Si(5 nm)/Ni(15 nm)/Si] by a focused ion beam (FIB) irradiation has been attempted. A control experiment was initially performed by irradiation with a standard 30 keV Ga ion beam at various fluences. [...]
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2017-09-04
15:11
[PUBDB-2017-10300] Poster
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Structural investigations of spider attachment hairs using X-ray tomographic microscopy and scanning X-ray nanobeam diffraction
RACIRI Summer School 2017, Meeting locationRonneby, Helmholtz-Zentrum Geesthacht, Sweden, 19 Aug 2017 - 26 Aug 20172017-08-192017-08-26

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2017-09-04
15:05
[PUBDB-2017-10299] Poster
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Spider attachment setae explored using nanofocus scanning X-ray diffraction
109th Annual Meeting of the German Zoological Society , (DZG), Meeting locationKiel, Kiel University, Germany, 14 Sep 2016 - 17 Sep 20162016-09-142016-09-17

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2017-09-04
12:04
[PUBDB-2017-10291] Journal Article
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Microstructural characterization of NiTi shape memory alloy produced by rotary hot forging
ddc:540
The thermomechanical processing of NiTi shape memory alloys usually involves several steps of hotand/or cold deformation. The present work presents the structural characterization of a Ni-rich NiTialloy bar, produced by vacuum-induced melting and thermomechanical processing in laboratoryscale, aiming at massive production in the future. [...]
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