Temperature dependence of deformation mechanisms in a single crystal nickel-base alloy with high volume fraction of γ′ phase

1996 ◽  
Vol 44 (6) ◽  
pp. 2397-2407 ◽  
Author(s):  
M. Feller-Kniepmeier ◽  
T. Link ◽  
I. Poschmann ◽  
G. Scheunemann-Frerker ◽  
C. Schulze
Keyword(s):  
Single Crystal ◽  
Temperature Dependence ◽  
Volume Fraction ◽  
Base Alloy ◽  
High Volume ◽  
High Volume Fraction ◽  
Deformation Mechanisms ◽  
Nickel Base Alloy ◽  
Nickel Base

Creep Induced Twinning in A Γ'-Precipitation Hardened Nickel-Base Alloy

1970 ◽  
Vol 28 ◽  
pp. 446-447 ◽  
Author(s):  
B. H. Kear ◽  
J. M. Oblak ◽  
G. R. Leverant
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Volume Fraction ◽  
Base Alloy ◽  
High Volume ◽  
Particle Interactions ◽  
Nickel Base Alloy ◽  
Coherent Precipitate ◽  
Contrast Analysis ◽  
Nickel Base

High temperature nickel-base alloys are strengthened by a high volume fraction, coherent precipitate of γ’ [Ni3 (Al,Ti)], with Ll2 structure. The mechanical properties of these alloys are dependent upon the interaction of dislocations with the ordered γ’ precipitate. A detailed diffraction contrast analysis has been made of dislocation/ γ’ particle interactions occurring during 1400oF creep of the nickel-base alloy Mar-M200.In the early stages of creep, two types of γ’ particle shearing mechanisms have been observed, Fig. 1. The interpretation of these micrographs is illustrated in Fig. 2.

Experimental Research on Grinding Temperature With Different Workpiece Materials

2020 ◽  
pp. 226-248
Keyword(s):  
Heat Transfer ◽  
Volume Fraction ◽  
Base Alloy ◽  
Transfer Mechanism ◽  
Grinding Temperature ◽  
Heat Transfer Mechanism ◽  
Nickel Base Alloy ◽  
Workpiece Material ◽  
Simulation And Experiment ◽  
Nickel Base

The results show that the nanofluids with a volume fraction of 2% have good comprehensive properties for lubrication. However, this study only concentrates on workpiece material—nickel base alloy. Based on literature analysis, researchers have carried out a large quantity of researches on NMQL grinding of different workpiece materials including hard steel HSS, quenched steel 100Cr6, nickel base alloy, Ti-6Al-4V alloy, soft steel CK45, and cast iron. They have mainly focused on grinding force, surface roughness, etc. The heat transfer state of nanofluids is neglected, and the research on the heat transfer mechanism of grinding temperature is lacking. Therefore, grinding temperatures obtained through MQL grinding with different concentrations of vegetable oils-based nanofluids as well as their heat transfer mechanism are investigated through simulation and experiment in this chapter.

Creep and fatigue interaction in the PWA1484 single crystal nickel-base alloy

2010 ◽  
Vol 527 (29-30) ◽  
pp. 7484-7489 ◽  
Author(s):  
Christian J. Pierce ◽  
Anthony N. Palazotto ◽  
Andrew H. Rosenberger
Keyword(s):  
Single Crystal ◽  
Base Alloy ◽  
Nickel Base Alloy ◽  
Nickel Base
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