Dynamic strain aging of Al 0.3 CoCrFeNi high entropy alloy single crystals

2015 ◽  
Vol 108 ◽  
pp. 80-83 ◽  
Author(s):  
Hiroyuki Y. Yasuda ◽  
Kyosuke Shigeno ◽  
Takeshi Nagase
Keyword(s):  
Single Crystals ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Dynamic Strain ◽  
High Entropy Alloy ◽  
High Entropy

scholarly journals Manifestations of dynamic strain aging in soft-oriented NiAl single crystals

1996 ◽  
Vol 27 (11) ◽  
pp. 3542-3557 ◽  
Author(s):  
M. L. Weaver ◽  
M. J. Kaufman ◽  
R. D. Noebe
Keyword(s):  
Single Crystals ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Dynamic Strain

Dynamic strain aging and serrated flow in MnO

1986 ◽  
Vol 1 (1) ◽  
pp. 124-129 ◽  
Author(s):  
K. C. Goretta ◽  
J. L. Routbort ◽  
T. A. Bloom
Keyword(s):  
Single Crystals ◽  
Yield Stress ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Dynamic Strain ◽  
Local Defect ◽  
Serrated Flow ◽  
Partial Pressures ◽  
Effects Of Aging ◽  
Segregation Of Impurities

The effects of aging on the upper yield stress τup and serrated flow have been studied in MnO single crystals at 900 °C for oxygen partial pressures ρO2 of 10−11 and 10−7 Pa. Aging initially increases τup as a consequence of segregation of aliovalent impurities to dislocations for both ρO2 values. For long aging times and ρO2 = 10-11 Pa, serrated flow accompanied by solute softening is observed. The data fit predictions of a Portevin-Le Chatelier model for serrations, but with impurity atmospheres causing softening instead of hardening. This is believed to result from changes in local defect equilibria caused by segregation of impurities with valences greater than two to dislocations.

Dynamic strain aging in Czochralski-grown silicon single crystals

1989 ◽  
Vol 117 ◽  
pp. 75-82 ◽  
Author(s):  
T.S. Gross ◽  
V.K. Mathews ◽  
R.J. De Angelis ◽  
K. Okazaki
Keyword(s):  
Single Crystals ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Dynamic Strain

Strain Aging behavior In NiAI Microalloyed with Interstitial and Substitutional Solutes

1996 ◽  
Vol 460 ◽  
Author(s):  
M. L. Weaver ◽  
R. D. Noebe ◽  
M. J. Kaufman
Keyword(s):  
Single Crystals ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Dynamic Strain ◽  
Aging Behavior ◽  
Co Doping ◽  
Polycrystalline Alloys ◽  
Substitutional Impurities

ABSTRACTDynamic strain aging has been investigated in polycrystalline NiAl alloys containing combined additions of interstitial and substitutional impurities. The results indicate that strain aging can be enhanced in polycrystalline alloys containing concentrations of silicon or iron in excess of 0.15 at.% in addition to conventional levels of carbon. This co-doping leads to very dramatic strain aging events, comparable to those typically observed in single crystals. This effect will be discussed with respect to conventional theories of strain aging.

Serrated Yield Behavior in Nial Single Crystal

1994 ◽  
Vol 364 ◽  
Author(s):  
J. M. Brzeski ◽  
J.E. Hack ◽  
R. Darolia
Keyword(s):  
Experimental Data ◽  
Activation Energy ◽  
Single Crystal ◽  
Single Crystals ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Fracture Behavior ◽  
Recent Model ◽  
Dynamic Strain ◽  
Yield Behavior

AbstractDynamic strain aging has been characterized in standard purity NiAl single crystals during compression testing. The activation energy for the process suggests carbon and oxygen as the most likely agents. Experimental data is compared with a recent model and implications for the fracture behavior of NiAl are considered.

Considering the influence of heating rate, complex hardening and dynamic strain aging in AISI 1045 machining: experiments and simulations

CIRP Annals ◽  
2021 ◽  
Author(s):  
Friedrich Bleicher ◽  
Christian Baumann ◽  
Stephan Krall ◽  
Steven P. Mates ◽  
Sibylle Herzig ◽  
...  
Keyword(s):  
Heating Rate ◽  
Dynamic Strain Aging ◽  
Strain Aging ◽  
Dynamic Strain ◽  
Aisi 1045 ◽  
Complex Hardening
Sign in / Sign up

Export Citation Format

Share Document