Evolution of the structure and phase composition of rapidly solidified Al-Mg-Mn-Sc-Zr alloys during deformation in a bridgman anvil

2010 ◽  
Vol 2010 (4) ◽  
pp. 328-334 ◽  
Author(s):  
I. G. Brodova ◽  
I. G. Shirinkina ◽  
O. V. Antonova ◽  
A. V. Chirkova ◽  
S. V. Dobatkin ◽  
...  
Keyword(s):  
Phase Composition ◽  
Bridgman Anvil ◽  
Rapidly Solidified ◽  
Zr Alloys

Phase Composition and Microstructure Stability of Al-Ni-Zr Alloys

2005 ◽  
Vol 482 ◽  
pp. 219-222
Author(s):  
Barbora Bártová ◽  
Jan Verner ◽  
Dalibor Vojtěch ◽  
A. Gemperle ◽  
M. Čerňanský
Keyword(s):  
Phase Composition ◽  
Melt Spinning ◽  
Metastable Phase ◽  
Casting Technique ◽  
Planar Flow Casting ◽  
Microstructure Stability ◽  
Significant Difference ◽  
Rapidly Solidified ◽  
Al3ni Phase ◽  
Zr Alloys

The paper reports on a detailed investigation of microstructure and phase composition of rapidly solidified and annealed AlNi18.5 and AlNi17Zr1.8 ribbons. The ribbons were prepared by the melt spinning (planar flow casting) technique. The microstructure and phase composition have been studied by TEM and XRD. The specimens were annealed and subsequently subjected to microstructure investigations to asses their thermal stability. Rapidly solidified alloys are composed of a-Al and Al3Ni phase grains. No significant difference in the shape between Al and Al3Ni grains was found. The Al9Ni2 metastable phase was identified in the rapidly solidified AlNi17Zr1.8 alloy and the Al3Zr phase precipitates from the a-Al solid solution in the AlNi17Zr1.8 alloy after the high temperature annealing.

Influence of the degree of scandium supersaturation on the precipitation kinetics of rapidly solidified Al-Mg-Sc-Zr alloys

2016 ◽  
Vol 117 ◽  
pp. 43-50 ◽  
Author(s):  
J. Taendl ◽  
A. Orthacker ◽  
H. Amenitsch ◽  
G. Kothleitner ◽  
C. Poletti
Keyword(s):  
Precipitation Kinetics ◽  
Rapidly Solidified ◽  
Kinetics Of ◽  
Zr Alloys

Phase composition and mechanical properties of cast Mg?Zn?Zr alloys

1978 ◽  
Vol 20 (8) ◽  
pp. 657-660 ◽  
Author(s):  
G. I. Morozova ◽  
V. V. Tikhonova ◽  
N. F. Lashko
Keyword(s):  
Mechanical Properties ◽  
Phase Composition ◽  
Zr Alloys

scholarly journals Incorporation of zirconium into PEO coating on Ti6Al4V alloy from acidic electrolyte

2021 ◽  
Vol 8 (6) ◽  
pp. 974-989
Author(s):  
Jie Sun ◽  
◽  
Tzvetanka Boiadjieva-Scherzer ◽  
Hermann Kronberger ◽  
Keyword(s):  
Phase Composition ◽  
Plasma Electrolytic Oxidation ◽  
Ti6al4v Alloy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Electrolytic Oxidation ◽  
Acidic Electrolyte ◽  
Plasma Electrolytic ◽  
Cu And Zn ◽  
Zr Alloys

<abstract> <p>To imitate the superior biocompatibility of Ti–Zr alloys at reduced cost, conventional Ti6Al4V alloy was modified via plasma electrolytic oxidation (PEO). The influence of different additives on the phase composition and topography was investigated in acidic electrolytes containing Zr(SO<sub>4</sub>)<sub>2</sub>·H<sub>2</sub>O with potentiostatically controlled PEO at different pulse frequencies. Apart from the primary intention to generate Zr enriched phases, formation and incorporation in the ceramic layer of potential antibacterial Cu and Zn species was achieved and examined by X-ray diffraction. The thickness of the oxide layer, the adhesion and the layers' composition were evaluated using FIB and SEM-EDX.</p> </abstract>

Phase Composition and Microstructure Stability of Al-Ni-Zr Alloys

2005 ◽  
pp. 219-222
Author(s):  
Barbora Bártová ◽  
Jan Verner ◽  
Dalibor Vojtěch ◽  
A. Gemperle ◽  
M. Čerňanský
Keyword(s):  
Phase Composition ◽  
Microstructure Stability ◽  
Zr Alloys

Microstructures Development in Al-5Fe and Al-5Fe-3Y Alloys Solidified at Different Cooling Rate

2011 ◽  
Vol 189-193 ◽  
pp. 2462-2466
Author(s):  
Guo Fa Mi ◽  
Cui Fen Dong ◽  
Chang Yun Li ◽  
Hai Yan Wang
Keyword(s):  
Rare Earth ◽  
Phase Composition ◽  
Intermetallic Compound ◽  
Cooling Rate ◽  
Melt Spinning ◽  
Metastable Phase ◽  
Vacuum Melting ◽  
Suction Casting ◽  
Rapidly Solidified

Cast, sub-rapidly solidified and rapidly solidified Al-5Fe alloy and Al-5Fe-3Y alloy were respectively prepared by vacuum melting, suction casting and melt spinning. The effect of increasing cooling rate and adding rare earth Y alloy on microstructures and phase composition were investigated. The results showed that the acicular Al3Fe phase transferred to spherical phase and dispersed secondary precipitations were also found when 3.0 wt% Y was added in the Al-5Fe alloy. Meanwhile, the microstructures were apparently refined by the increasing of cooling rate. The metastable phase A16Fe and intermetallic compound A110Fe2Y phase have been observed in Al-5Fe alloy and Al-5Fe-3Y alloy, respectively.

Effect of Cr and Zr Dopes on Hydrogen Behaviour in Rapidly Solidified Aluminium Foils

2010 ◽  
Vol 638-642 ◽  
pp. 465-468 ◽  
Author(s):  
Iya I. Tashlykova-Bushkevich ◽  
Takahiro Shikagawa ◽  
Takayoshi Suzuki ◽  
Vasiliy G. Shepelevich ◽  
Goroh Itoh
Keyword(s):  
Heating Rate ◽  
Thermal Desorption ◽  
Thermal Process ◽  
Thermal Desorption Spectroscopy ◽  
Pure Aluminium ◽  
Desorption Peak ◽  
Sample Composition ◽  
Rapidly Solidified ◽  
Zr Alloys

Hydrogen (H) behaviour in materials was investigated in rapidly solidified (RS) foils of pure aluminium (Al), Al-0.4 Cr and Al-0.25 Zr alloys (at %) by means of thermal desorption spectroscopy (TDS). In addition, Al-0.25; 0.3 Zr alloys were examined with respect to microstructure and its instability during the thermal process using SEM and microhardness measurements. The effect of dopes and heating rate on H desorption was summarized. The lowest energy desorption is attributed with significant thermal desorption peak which temperature was found is correlated with sample composition.

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