Creep Processes in MAR-M247 Nickel-Base Superalloy

2016 ◽  
Vol 258 ◽  
pp. 603-606
Author(s):  
Marie Kvapilová ◽  
Květa Kuchařová ◽  
Karel Hrbáček ◽  
Vàclav Sklenička
Keyword(s):  
Creep Deformation ◽  
Elevated Temperatures ◽  
Dislocation Creep ◽  
Nickel Base Superalloy ◽  
Deformation And Fracture ◽  
Creep Life Prediction ◽  
Controlling Mechanism ◽  
Nickel Base ◽  
Creep Regime ◽  
Base Superalloy

Creep processes in MAR-M247 Nickel - Base Superalloy were studied at elevated temperatures. The stress exponents of creep rate n and time to fracture m indicate power-low (dislocation) creep regime and suggest the same controlling mechanism for the creep deformation and fracture. The variation of values of parameter n within the interval of applied stress may indicate changes in the rate-controlling creep deformation mechanism. The possibility of using of Monkman-Grant relationship for creep life prediction was demonstrated.

The creep deformation and fracture behaviors of nickel-base superalloy M951G at 900 °C

2017 ◽  
Vol 707 ◽  
pp. 383-391 ◽  
Author(s):  
Luqing Cui ◽  
Huhu Su ◽  
Jinjiang Yu ◽  
Jinlai Liu ◽  
Tao Jin ◽  
...  
Keyword(s):  
Creep Deformation ◽  
Nickel Base Superalloy ◽  
Deformation And Fracture ◽  
Fracture Behaviors ◽  
Nickel Base ◽  
Base Superalloy

Creep Deformation and Microstructural Examination of a Prior Thermally Exposed Nickel Base Superalloy

2004 ◽  
Vol 274-276 ◽  
pp. 925-930 ◽  
Author(s):  
Jozef Zrník ◽  
Pavel Strunz ◽  
V. Vrchovinsky ◽  
O. Muránsky ◽  
P. Horňak ◽  
...  
Keyword(s):  
Creep Deformation ◽  
Nickel Base Superalloy ◽  
Nickel Base ◽  
Base Superalloy ◽  
Microstructural Examination

scholarly journals Fatigue Crack Crowth Resistance in Nickel-Base Superalloy at Elevated Temperatures.

1997 ◽  
Vol 63 (615) ◽  
pp. 2298-2302 ◽  
Author(s):  
Norio KAWAGOISHI ◽  
Qiang CHEN ◽  
Hironobu NISITANI ◽  
Masahiro GOTO ◽  
Hideho TANAKA
Keyword(s):  
Fatigue Crack ◽  
Elevated Temperatures ◽  
Nickel Base Superalloy ◽  
Nickel Base ◽  
Base Superalloy

SPECIAL METALS INCONEL 740H

Alloy Digest ◽  
2020 ◽  
Vol 69 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Power Plants ◽  
Elevated Temperatures ◽  
Coal Ash ◽  
High Strength ◽  
Heat Treating ◽  
Nickel Base Superalloy ◽  
Unique Combination ◽  
Nickel Base ◽  
Base Superalloy

Abstract Special Metals Inconel 740H (UNS N07740) is a precipitation hardenable, nickel-base superalloy that offers a unique combination of high strength and creep resistance at elevated temperatures along with resistance to coal ash corrosion. This alloy was originally targeted for use in advanced ultra-supercritical (A-USC) power plants. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-762. Producer or source: Special Metals Corporation.

Experimental Study on Cutting Force in Machining Nickel Base Superalloy

2010 ◽  
Vol 455 ◽  
pp. 379-382
Author(s):  
X.Y. Wang ◽  
S.Q. Pang ◽  
Q.X. Yu
Keyword(s):  
Cutting Force ◽  
Elevated Temperatures ◽  
High Strength ◽  
Cutting Parameters ◽  
Advanced Materials ◽  
Nickel Base Superalloy ◽  
Nickel Based Superalloy ◽  
Actual Production ◽  
Nickel Base ◽  
Base Superalloy

Studies on cutting force lead an extremely important guiding significance in the actual producing. Nickel base superalloy is widely in the manufacture of components for some important industrial areas, because of their ability to retain high-strength at elevated temperatures. It possesses excellent performance as a class of advanced materials. Because of its very poor machinability, the study on cutting force in machining nickel-based superalloy in the actual production or scientific research is relatively less. In this paper, Author aim at two kinds of typical difficult-to-machining materials nickel base superalloy (GH4169, K24). Contrasting with other typical materials ,such as 45# steel and high strength steel 35CrMnSi，study the law of cutting force effected by cutting parameters under the conditions of turning . Intuitive analysis of cutting force changes with the cutting parameters, as well as these characteristics on three-axis force of each type of material, that is to improve its processability and to provide guidance to actual production has a positive significance.

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