High-strain-rate deformation and comminution of silicon carbide

1998 ◽  
Vol 83 (9) ◽  
pp. 4660-4671 ◽  
Author(s):  
C. J. Shih ◽  
V. F. Nesterenko ◽  
M. A. Meyers
Keyword(s):  
Silicon Carbide ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
High Strain Rate Deformation

High-strain-rate deformation of granular silicon carbide

1998 ◽  
Vol 46 (11) ◽  
pp. 4037-4065 ◽  
Author(s):  
C.J. Shih ◽  
M.A. Meyers ◽  
V.F. Nesterenko
Keyword(s):  
Silicon Carbide ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
High Strain Rate Deformation

Study on Dynamic Mechanical Response of TC21 Alloy

2011 ◽  
Vol 88-89 ◽  
pp. 674-678
Author(s):  
Shuang Zan Zhao ◽  
Xing Wang Cheng ◽  
Fu Chi Wang
Keyword(s):  
Flow Stress ◽  
High Strain Rate ◽  
Strain Rate ◽  
Strain Hardening ◽  
High Strain ◽  
Dynamic Flow ◽  
Dynamic Mechanical ◽  
Hardening Effect ◽  
High Strain Rate Deformation ◽  
Binary Morphology

Some results of an experimental study on high strain rate deformation of TC21 alloy are discussed in this paper. Cylindrical specimens of the TC21 alloys both in binary morphology and solution and aging morphology were subjected to high strain rate deformation by direct impact using a Split Hopkinson Pressure Bar. The deformation process is dominated by both thermal softening effect and strain hardening effect under high strain rate loading. Thus the flow stress doesn’t increase with strain rate at the strain hardening stage, while the increase is obvious under qusi-static compression. Under high strain rate, the dynamic flow stress is higher than that under quasi-static and dynamic flow stress increase with the increase of the strain rate, which indicates the strain rate hardening effect is great in TC21 alloy. The microstructure affects the dynamic mechanical properties of TC21 titanium alloy obviously. Under high strain rate, the solution and aging morphology has higher dynamic flow stress while the binary morphology has better plasticity and less prone to be instability under high strain rate condition. Shear bands were found both in the solution and aging morphology and the binary morphology.

High strain rate deformation of nanostructured super bainite

2018 ◽  
Vol 54 (4) ◽  
pp. 3455-3468 ◽  
Author(s):  
Behzad Avishan ◽  
Asghar Sefidgar ◽  
Sasan Yazdani
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
High Strain Rate Deformation

scholarly journals Влияние гигантской магнитострикции на динамический предел текучести в условиях высокоскоростной деформации

2021 ◽  
Vol 63 (12) ◽  
pp. 2070
Author(s):  
В.В. Малашенко
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Yield Stress ◽  
High Strain ◽  
Dynamic Yield Stress ◽  
High Strain Rate Deformation ◽  
Dynamic Yield ◽  
Giant Magnetostriction

The high-strain rate deformation of crystals with giant magnetostriction is theoretically analyzed. It is shown that giant magnetostriction has a significant effect on the dynamic yield stress of crystals.

scholarly journals Немонотонная скоростная зависимость динамического предела текучести сплавов в условиях высокоскоростной деформации

2021 ◽  
Vol 63 (9) ◽  
pp. 1391
Author(s):  
В.В. Малашенко
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
High Strain Rate Deformation

Теоретически исследовано скольжение краевых дислокаций в состаренном бинарном сплаве в условиях высокоскоростной деформации (high strain rate deformation). Получено аналитическое выражение для скоростной зависимости динамического предела текучести. Получены условия, при которых график скоростной зависимости может иметь два максимума и два минимума. Существование двух максимумов связано с наличием двух типов дефектов, значительно отличающихся своими размерами (атомы второго компонента и зоны Гинье-Престона). Минимумы имеют место при переходе от доминирования динамического торможения (drag) одним типом дефектов к доминированию дефектов другого типа. Максимумы возникают при изменении характера торможения доминирующими дефектами. Ключевые слова: дислокации, высокоскоростная деформация, дефекты, зоны Гинье-Престона.

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