The Electrochemical Behavior of the Al3Ta Intermetallic Compound and Pitting in Two‐Phase Al‐Ta Alloys

1995 ◽  
Vol 142 (1) ◽  
pp. 51-58 ◽  
Author(s):  
R. G. Buchheit ◽  
K. R. Zavadil ◽  
J. R. Scully ◽  
T. O. Knight
Keyword(s):  
Intermetallic Compound ◽  
Electrochemical Behavior ◽  
Two Phase

ChemInform Abstract: Electrochemical Behavior of the Al3Ta Intermetallic Compound and Pitting in Two-Phase Al-Ta Alloys.

ChemInform ◽  
2010 ◽  
Vol 26 (12) ◽  
pp. no-no
Author(s):  
R. G. BUCHHEIT ◽  
K. R. ZAVADIL ◽  
J. R. SCULLY ◽  
T. O. KNIGHT
Keyword(s):  
Intermetallic Compound ◽  
Electrochemical Behavior ◽  
Two Phase

PROMISING INTERMETALLIC Al2Ti ALLOYS FOR THE MANUFACTURE OF PARTS BY CASTING METHODS (review)

2021 ◽  
pp. 23-38
Author(s):  
A.V. Trapeznikov ◽  
◽  
V.I. Ivanov ◽  
E.A. Prokhorchuk ◽  
Yu.V. Reshetnikov ◽  
...  
Keyword(s):  
Intermetallic Compound ◽  
Titanium Alloys ◽  
Power Plants ◽  
Promising Material ◽  
Two Phase ◽  
Heat Resistant ◽  
Technological Characteristics ◽  
Cast Products

The Al2Ti intermetallic compound is a promising material for the development of heat-resistant alloys used for the manufacture of shaped parts for ground and aircraft power plants. Considers the features of the structure of two-phase alloys, evaluates the casting properties and technological characteristics in comparison with various AlTi alloys, as applied to the production of ingots and cast products. It is necessary to use technologies developed for titanium alloys in the production of cast products from such alloys.

INTERMETALLIC COMPOUND AlxTi – ARE PROMISING MATERIAL FOR HIGH ELEVATED TEMPERATURES (review) Part 2. The mechanical properties of the intermetallic Al2Ti compound and the effect of alloying

2021 ◽  
pp. 32-47
Author(s):  
N.A. Nochovnaya ◽  
◽  
V.I. Ivanov ◽  
L.Yu. Avilochev ◽  
◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Phase Composition ◽  
Intermetallic Compound ◽  
Elevated Temperatures ◽  
Niobium Alloy ◽  
Promising Material ◽  
Two Phase ◽  
Heat Resistant ◽  
Refractory Elements ◽  
Additional Doping

Intermetallide alloys based on the Al2Ti compound are the most promising heat-resistant materials for future energy plants.The review examines the mechanical properties of the Al2Ti Intermetalide, two-phase alloys based on it and the doped niobium alloy. For use at temperatures of up to 950 °С, alloys with phase composition r-Al2Ti + γ-TiAl and platemicrostructure with additional doping of refractory elements are of interest.

Understanding the electrochemical behavior of bulk-synthesized MgZn2 intermetallic compound in aqueous NaCl solutions as a function of pH

2019 ◽  
Vol 23 (4) ◽  
pp. 1165-1177 ◽  
Author(s):  
Alexander I. Ikeuba ◽  
Fujun Kou ◽  
Haowei Duan ◽  
Bo Zhang ◽  
Jianqiu Wang ◽  
...  
Keyword(s):  
Intermetallic Compound ◽  
Electrochemical Behavior

scholarly journals Effect of Reactive SPS on the Microstructure and Properties of a Dual-Phase Ni-Al Intermetallic Compound and Ni-Al-TiB2 Composite

Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5668
Author(s):  
Paweł Hyjek ◽  
Iwona Sulima ◽  
Piotr Malczewski ◽  
Krzysztof Bryła ◽  
Lucyna Jaworska
Keyword(s):  
Intermetallic Compound ◽  
Tribological Properties ◽  
Matrix Material ◽  
Dual Phase ◽  
Compression Tests ◽  
Two Phase ◽  
Alloy Matrix ◽  
Plastic Properties ◽  
Mechanical And Tribological Properties ◽  
The Matrix

As part of the tests, a two-phase NiAl/Ni3Al alloy and a composite based on this alloy with 4 vol% addition of TiB2 were produced by the reactive FAST/SPS (Field Assisted Sintering Technology/Spark Plasma Sintering) sintering method. The sintering process was carried out at 1273 K for 30 s under an argon atmosphere. The effect of reactive SPS on the density, microstructure, and mechanical and tribological properties of a dual-phase Ni-Al intermetallic compound and Ni-Al-TiB2 composite was investigated. Products obtained were characterized by a high degree of sintering (over 99% of the theoretical density). The microstructure of sinters was characterized by a large diversity, mainly in regard to the structure of the dual-phase alloy (matrix). Compression tests showed satisfactory plastic properties of the manufactured materials, especially at high temperature (1073 K). For both materials at room temperature, the compressive strength was over 3 GPa. The stress–strain curves were observed to assume a different course for the matrix material and composite material, including differences in the maximum plastic flow stress depending on the test temperature. The brittle-to-ductile transition temperature was determined to be above 873 K. The research has revealed differences in the physical, mechanical and tribological properties of the produced sinters. However, the differences favourable for the composite were mostly the result of the addition of TiB2 ceramic particles uniformly distributed on grain boundaries.

Effect of Ag on the Hot Corrosion of NiAl Intermetallic Compound

2013 ◽  
Vol 32 (4) ◽  
pp. 359-365
Author(s):  
S.N. Liu ◽  
W. Su ◽  
W.Y. Lv ◽  
Z.F. Wei ◽  
C.L. Zeng
Keyword(s):  
Intermetallic Compound ◽  
Hot Corrosion ◽  
Weight Percent ◽  
Typical Feature ◽  
Localized Corrosion ◽  
High Temperature Strength ◽  
Physical Analysis ◽  
Two Phase ◽  
Analysis Techniques ◽  
Intermetallic Compound Nial

AbstractThe low ambient tensile ductility and inadequate high temperature strength and creep resistance have limited the applications of intermetallic compound NiAl as a structure material at high temperatures. A small addition of Ag could increase the strength of NiAl. In this study, hot corrosion behavior of NiAl and NiAl-Ag containing 1 and 5%Ag (in weight percent), respectively, in molten (Na,K)2SO4 at 1173 K has been examined by thermogravimetry and physical analysis techniques. The experimental results indicated that the corrosion rates of NiAl and NiAl-Ag tended to increase with exposure time, accompanied with the formation of nodules. Fast localized corrosion is the typical feature of the corrosion of both NiAl and NiAl-Ag. The addition of Ag to NiAl accelerated its corrosion, with a higher corrosion rate observed for the 5%Ag addition. The two-phase microstructure of NiAl-Ag alloys accelerated the formation of nodules in the regions close to Ag phases.

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