Application of tight-binding electronic theory to phase stability and mechanical properties of intermetallic compounds

1997 ◽  
Vol 18 (6) ◽  
pp. 628-634 ◽  
Author(s):  
K. Masuda-Jindo ◽  
M. H. F. Sluiter
Keyword(s):  
Mechanical Properties ◽  
Intermetallic Compounds ◽  
Phase Stability ◽  
Tight Binding ◽  
Electronic Theory

Exploring phase stability, electronic and mechanical properties of Ce–Pb intermetallic compounds using first-principles calculations

2016 ◽  
Vol 237 ◽  
pp. 385-393 ◽  
Author(s):  
Xiaoma Tao ◽  
Ziru Wang ◽  
Chunxiang Lan ◽  
Guanglong Xu ◽  
Yifang Ouyang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Intermetallic Compounds ◽  
Phase Stability ◽  
First Principles ◽  
First Principles Calculations

Intermetallic Compounds in Co-base Alloys–Phase Stability and Application to Superalloys

2008 ◽  
Vol 1128 ◽  
Author(s):  
Kiyohito Ishida
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Intermetallic Compounds ◽  
Phase Stability ◽  
Alloying Elements ◽  
Critical Temperatures ◽  
High Temperature Alloys ◽  
New Type ◽  
Effect Of Alloying

AbstractThe phase stability of intermetallic compounds of Co3X has been discussed with a focus on the γ' phase of Co3Al, Co3W and Co3(Al, W) with the L12 structure. The critical temperatures of the γ' phase of Co3Al, Co3W and Co3(Al, W) compounds are estimated to be about 870 , 980 and 1076 , respectively. The effect of alloying elements on the Co-Al-W -base alloys was found to be very similar to that of Ni-base superalloys, where Ti, Ta, Nb and V are the γ' stabilizing elements, while Mn, Fe and Cr are the γ' forming elements. The mechanical properties of Co-Al-W-base alloys were also found to be similar to those of Ni-base alloys. In particular, the flow strengths of Co-Al-W-base alloys at temperatures above 800 were comparable or higher than those of Ni-base superalloys, which implies that the Co-base superalloys strengthened by the γ' phase have great potential as a new type of high-temperature alloys.

scholarly journals Phase stability and elasticity of C15 transition-metal intermetallic compounds

1997 ◽  
Vol 18 (6) ◽  
pp. 536-543 ◽  
Author(s):  
F. Chu ◽  
T. E. Mitchell ◽  
S. P. Chen ◽  
M. Sob ◽  
R. Siegl ◽  
...  
Keyword(s):  
Transition Metal ◽  
Intermetallic Compounds ◽  
Phase Stability

scholarly journals The Extrusion and SPS of Zirconium–Copper Powders and Studies of Selected Mechanical Properties

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3560
Author(s):  
Tomasz Skrzekut ◽  
Grzegorz Boczkal ◽  
Adam Zwoliński ◽  
Piotr Noga ◽  
Lucyna Jaworska ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Intermetallic Compounds ◽  
Room Temperature ◽  
Intermetallic Phase ◽  
Extrusion Process ◽  
Strength Properties ◽  
Plasma Sintering ◽  
Copper Powders ◽  
Spark Plasma ◽  
Zirconium Copper

Zr-2.5Cu and Zr-10Cu powder mixtures were consolidated in the extrusion process and using the spark plasma sintering technique. In these studies, material tests were carried out in the fields of phase composition, microstructure, hardness and tensile strength for Zr-Cu materials at room temperature (RT) and 400 °C. Fractography analysis of materials at room temperature and 400 °C was carried out. The research took into account the anisotropy of the materials obtained in the extrusion process. For the nonequilibrium SPS process, ZrCu2 and Cu10Zr7 intermetallic compounds formed in the material at sintering temperature. Extruded materials were composed mainly of α-Zr and ZrCu2. The presence of intermetallic compounds affected the reduction in the strength properties of the tested materials. The highest strength value of 205 MPa was obtained for the extruded Zr-2.5Cu, for which the samples were cut in the direction of extrusion. For materials with 10 wt.% copper, more participation of the intermetallic phase was formed, which lowered the mechanical properties of the obtained materials. In addition to brittle intermetallic phases, the materials were characterized by residual porosity, which also reduced the strength properties.

Experimental and theoretical investigations on the phase stability and mechanical properties of Cr7Mn25Co9Ni23Cu36 high-entropy alloy

2021 ◽  
Vol 208 ◽  
pp. 116763
Author(s):  
Gang Qin ◽  
Ruirun Chen ◽  
Huahai Mao ◽  
Yan Yan ◽  
Xiaojie Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Phase Stability ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Theoretical Investigations
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