scholarly journals Synthesis of Complex-Alloyed Nickel Aluminides from Oxide Compounds by Aluminothermic Method

Metals ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 439 ◽  
Author(s):  
Victor Gostishchev ◽  
Ernst Ri ◽  
Hosen Ri ◽  
Evgeniy Kim ◽  
Michail Ermakov ◽  
...  
Keyword(s):  
Nickel Aluminides ◽  
Alloyed Nickel

Obtaining of complex-alloyed nickel aluminides and complex ligatures by metal oxides’ metallothermy

2017 ◽  
pp. 79-84
Author(s):  
V. V. Gostishchev ◽  
◽  
S. N. Khimukhin ◽  
E. D. Kim ◽  
E. Kh. Ri ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Nickel Aluminides ◽  
Alloyed Nickel

High Strain Rate Superplasticity in Mechanically Alloyed Nickel Aluminides

2001 ◽  
Vol 357-359 ◽  
pp. 309-314 ◽  
Author(s):  
Y. Doi ◽  
Kenji Matsuki ◽  
H. Akimoto ◽  
Tetsuo Aida
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Nickel Aluminides ◽  
Mechanically Alloyed ◽  
Alloyed Nickel

Microstructure and Properties of Composites Prepared by Reactive Pressure Infiltration of Aluminium into Metal and Ceramic Powder Preforms

2014 ◽  
Vol 782 ◽  
pp. 523-526
Author(s):  
Andrej Opálek ◽  
Karol Iždinský ◽  
Štefan Nagy ◽  
František Simančík ◽  
Pavol Štefánik ◽  
...  
Keyword(s):  
Ceramic Powder ◽  
Nickel Aluminides ◽  
Gas Pressure ◽  
Alumina Powder ◽  
Pressure Infiltration ◽  
X Ray ◽  
Reactive Infiltration ◽  
Melting Temperatures ◽  
Ni Powder ◽  
Properties Of Composites

Nickel aluminides exhibit very attractive high temperature properties. However, due to high melting temperatures they are difficult to prepare. Gas pressure reactive infiltration is a relatively cheap technology that provides composites where nickel aluminides are formed due to mutual reaction between Ni powder and molten aluminium forced to penetrate into powder preform. The feasibility of this concept is demonstrated in this work. Ni powder and/or Ni+25 vol. % Al2O3 powder mixture, respectively, were mechanically pressed and then infiltrated with aluminium using 5 MPa argon gas pressure at the temperature of 750 °C for 120 s. Al/Al2O3 composite using loose alumina powder was prepared in similar manner for comparison. The microstructure of composites was observed by scanning electron microscopy and newly formed intermetallic phases were analysed by energy-dispersive X-ray spectroscopy. Relative elongations during additional thermal cycling up to 800 °C had been recorded. Composites were additionally characterized by hardness measurements.

scholarly journals Long-Term Strength of a Composition of Complex Refractory Coating and Single-Crystal Rhenium-Alloyed Nickel Alloy after High-Temperature Holds

2013 ◽  
Vol 55 (7-8) ◽  
pp. 403-408
Author(s):  
V. P. Kuznetsov ◽  
V. P. Lesnikov ◽  
E. V. Moroz ◽  
M. S. Khadyev ◽  
I. P. Konakova
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Nickel Alloy ◽  
Term Strength ◽  
Refractory Coating ◽  
Alloyed Nickel

Alloys based on nickel aluminides

1999 ◽  
Vol 41 (1) ◽  
pp. 36-38 ◽  
Author(s):  
V. P. Buntushkin ◽  
E. N. Kablov ◽  
O. A. Bazyleva ◽  
G. I. Morozova
Keyword(s):  
Nickel Aluminides

SHS Metallurgy of NiAl-Based Alloy

2016 ◽  
Vol 684 ◽  
pp. 353-358 ◽  
Author(s):  
V.I. Yukhvid ◽  
M.I. Alymov ◽  
Vladimir N. Sanin ◽  
D.E. Andreev
Keyword(s):  
Melting Point ◽  
Metal Oxides ◽  
Basic Research ◽  
Reducing Agents ◽  
Nickel Aluminides ◽  
Shs Metallurgy ◽  
Cast Products

Highly caloric mixtures of metal oxides with reducing agents used in SHS metallurgy can burn at combustion temperatures well above the melting point of final products, which ensures formation of cast products. The data of basic research in the field allowed us to suggest methods for manufacturing new cast nickel aluminides based alloy.

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