Influence of production factors on the high-temperature strength characteristics of molybdenum alloys

1988 ◽  
Vol 20 (6) ◽  
pp. 818-824 ◽  
Author(s):  
V. V. Bukhanovskii ◽  
V. K. Kharchenko ◽  
E. P. Polishchuk ◽  
V. S. Kravchenko ◽  
T. D. Galinzovskaya ◽  
...  
Keyword(s):  
High Temperature ◽  
Strength Characteristics ◽  
High Temperature Strength ◽  
Production Factors ◽  
Molybdenum Alloys

High-temperature strength and creep of weld seams of molybdenum alloys in low-cycle loading

1994 ◽  
Vol 26 (11) ◽  
pp. 811-820 ◽  
Author(s):  
V. V. Bukhanovskii ◽  
V. A Borisenko ◽  
V. K. Kharchenko
Keyword(s):  
High Temperature ◽  
High Temperature Strength ◽  
Molybdenum Alloys ◽  
Cycle Loading ◽  
Weld Seams

Microstructure and High Temperature Strength Characteristics of Unidirectionally Solidified Al2 O3 /GdAlO3 Eutectic Composite

2006 ◽  
Vol 317-318 ◽  
pp. 437-440 ◽  
Author(s):  
Hideki Ohtsubo ◽  
Narihito Nakagawa ◽  
Kazutoshi Shimizu ◽  
Koji Shibata ◽  
Atsuyuki Mitani ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
High Temperature ◽  
Temperature Gradient ◽  
Flexural Strength ◽  
Mechanical Strength ◽  
Unidirectional Solidification ◽  
Strength Characteristics ◽  
High Temperature Strength ◽  
Flexural Test ◽  
Eutectic Composite

Enploying unidirectional solidification, Al2O3/GdAlO3(Gadolinium Aluminum Perovskite:GAP) eutectic composite was fabricated. The Al2O3/GAP eutectic composite obtained has a flexural strength of over 600Mpa above 1500C. The composite also showed plastic deformation above 1550C on the flexural test. The effect of microstructure on mechanical strength at high temperature was investigated. Al2O3/GAP eutectic composites having different microstructure were fabricated by controlling the temperature gradient on unidirectional solidification. It was found that the flexural strength at high temperature of the composite became higher with refining the microstructure.

Influence of Thermo-Mechanical Processing on the Microstructure of Beryllia Dispersed Nickel Alloys

1973 ◽  
Vol 31 ◽  
pp. 184-185
Author(s):  
M.S. Grewal ◽  
S.A. Sastri ◽  
N.J. Grant
Keyword(s):  
High Temperature ◽  
Nickel Alloys ◽  
Thermomechanical Processing ◽  
Cold Work ◽  
High Temperature Strength ◽  
Strengthening Effect ◽  
Mechanical Processing ◽  
Uniform Dispersion ◽  
Oxide Particles ◽  
Nickel Base

Currently there is a great interest in developing nickel base alloys with fine and uniform dispersion of stable oxide particles, for high temperature applications. It is well known that the high temperature strength and stability of an oxide dispersed alloy can be greatly improved by appropriate thermomechanical processing, but the mechanism of this strengthening effect is not well understood. This investigation was undertaken to study the dislocation substructures formed in beryllia dispersed nickel alloys as a function of cold work both with and without intermediate anneals. Two alloys, one Ni-lv/oBeo and other Ni-4.5Mo-30Co-2v/oBeo were investigated. The influence of the substructures produced by Thermo-Mechanical Processing (TMP) on the high temperature creep properties of these alloys was also evaluated.

Sign in / Sign up

Export Citation Format

Share Document