Tensile deformation behavior of a nickel based superalloy at different temperatures

2014 ◽  
Vol 599 ◽  
pp. 196-203 ◽  
Author(s):  
K. Hrutkay ◽  
D. Kaoumi
Keyword(s):  
Deformation Behavior ◽  
Tensile Deformation ◽  
Nickel Based Superalloy ◽  
Tensile Deformation Behavior ◽  
Different Temperatures

Constitutive Modeling for Tensile Behaviors of Ultra-high-strength-steel BR1500HS at Different Temperatures and Strain Rates

2015 ◽  
Vol 34 (5) ◽  
Author(s):  
Guo-Zheng Quan ◽  
Dong-sen Wu ◽  
An Mao ◽  
Yan-dong Zhang ◽  
Yu-feng Xia ◽  
...  
Keyword(s):  
Constitutive Modeling ◽  
High Strength Steel ◽  
Deformation Behavior ◽  
Tensile Deformation ◽  
High Strength ◽  
Strain Rate Range ◽  
Strain Rates ◽  
Tensile Deformation Behavior ◽  
Ultra High Strength Steel ◽  
Different Temperatures

AbstractIn order to investigate the tensile deformation behavior of ultra-high-strength-steel BR1500HS, a series of isothermal tensile experiments were carried out in a temperature range of 1023˜1123 K and a strain rate range of 0.01˜10 s

Investigation of Tensile Deformation Behavior of 7075-T6 at Elevated Temperatures

2012 ◽  
Vol 152-154 ◽  
pp. 358-363 ◽  
Author(s):  
Guo Wei Zhou ◽  
Da Yong Li ◽  
Ying Hong Peng
Keyword(s):  
Deformation Behavior ◽  
Elevated Temperatures ◽  
Tensile Deformation ◽  
Total Elongation ◽  
Yield Function ◽  
Uniaxial Tensile ◽  
Tensile Deformation Behavior ◽  
Ductile Mode ◽  
Different Temperatures ◽  
Increasing Temperature

Uniaxial tensile deformation behavior of 7075-T6 under three different strain rates (0.001, 0.004 and 0.03s-1) and five different temperatures (50, 100, 150, 200 and 250°C) is studied. The total elongation in uniaxial tension increases with increasing temperature in range of 50-200°C and decreases with increasing strain rate. But it drops sharply at 250°C. SEM observations of the fracture surface interpret the change of total elongation and show the fracture tends to transit from brittle mode to ductile mode with increasing temperature. The constitutive model and yield function related with temperature are established based on the experiment results.

scholarly journals Hot tensile deformation behavior and microstructure evolution of Mg-1Al-6Y alloy

2021 ◽  
Author(s):  
Shuai Yuan ◽  
Jinhui Wang ◽  
Peipeng Jin ◽  
Lei Zhang
Keyword(s):  
Dynamic Recrystallization ◽  
Strain Rate ◽  
Deformation Behavior ◽  
Basal Slip ◽  
Tensile Deformation ◽  
Fiber Texture ◽  
Effect Of Temperature ◽  
Tensile Deformation Behavior ◽  
Different Temperatures ◽  
Hot Tensile Deformation

Abstract In this study, the hot tensile test was carried out using the extruded and annealed Mg-1Al-6Y alloy. The effect of temperature and strain rate on the hot tensile deformation behavior of the alloy was systematically studied at different temperatures (200 ℃ ~ 350 ℃) and different strain rates (8×10-5 s-1 ~ 1.6×10-3 s-1). In addition, the effect of temperature on the evolution of microstructure when the strain rate is 1.6×10-3 s-1 was investigated. The results showed that as the temperature increased or the strain rate decreased, the peak stress decreased and the elongation increased. Hot tensile at different temperatures all increased the texture intensity, and the microstructure after deformation showed obvious characteristics of basal fiber texture ([0001]⊥ED). Correspondingly, the weaker [-15-40]//ED texture before deformation transformed into a stronger [01-10]//ED fiber texture. After deformation, the average Schmid factor (SF) of each non-basal slip was significantly increased compared with the average SF before deformation, indicating that abundant non-basal slip was activated during the deformation. When the deformation temperature was 300 °C, dynamic recrystallization (DRX) occurred significantly, and the DRXed grains accounted for 15.9%. DRX was a combination of continuous dynamic recrystallization (CDRX) and discontinuous dynamic recrystallization (DDRX). Furthermore, the calculated activation energy of the alloy was about 98.8 kJ/mol. Comprehensive research showed that the hot tensile deformation mechanism mainly included intragranular slip, grain boundary slip (GBS) and DRX.

scholarly journals Study on Microstructure and In Situ Tensile Deformation Behavior of Fe-25Mn-xAl-8Ni-C Alloy Prepared by Vacuum Arc Melting

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 814
Author(s):  
Yaping Bai ◽  
Meng Li ◽  
Chao Cheng ◽  
Jianping Li ◽  
Yongchun Guo ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Deformation Behavior ◽  
Tensile Deformation ◽  
Austenite Phase ◽  
Vacuum Arc ◽  
Al Content ◽  
Arc Melting ◽  
Vacuum Arc Melting ◽  
Tensile Deformation Behavior

In this study, Fe-25Mn-xAl-8Ni-C alloys (x = 10 wt.%, 11 wt.%, 12 wt.%, 13 wt.%) were prepared by a vacuum arc melting method, and the microstructure of this series of alloys and the in situ tensile deformation behavior were studied. The results showed that Fe-25Mn-xAl-8Ni-C alloys mainly contained austenite phase with a small amount of NiAl compound. With the content of Al increasing, the amount of austenite decreased while the amount of NiAl compound increased. When the Al content increased to 12 wt.%, the interface between austenite and NiAl compound and austenitic internal started to precipitate k-carbide phase. In situ tensile results also showed that as the content of Al increased, the alloy elongation decreased gradually, and the tensile strength first increased and then decreased. When the Al content was up to 11 wt.%, the elongation and tensile strength were 2.6% and 702.5 MPa, respectively; the results of in situ tensile dynamic observations show that during the process of stretching, austenite deformed first, and crack initiation mainly occurred at the interface between austenite and NiAl compound, and propagated along the interface, resulting in fracture of the alloy.

The effect of strain rates on tensile deformation of ultrafine-grained copper

2017 ◽  
Vol 31 (16-19) ◽  
pp. 1744014
Author(s):  
M. Li ◽  
Q. W. Jiang
Keyword(s):  
Strain Rate ◽  
Deformation Behavior ◽  
Room Temperature ◽  
Tensile Deformation ◽  
Strain Rates ◽  
Roll Bonding ◽  
Fracture Elongation ◽  
Tensile Deformation Behavior ◽  
Ultrafine Grained ◽  
Flow Stress Level

Tensile deformation behavior of ultrafine-grained (UFG) copper processed by accumulative roll-bonding (ARB) was studied under different strain rates at room temperature. It was found that the UFG copper under the strain rate of 10[Formula: see text] s[Formula: see text] led to a higher strength (higher flow stress level), flow stability (higher stress hardening rate) and fracture elongation. In the fracture surface of the sample appeared a large number of cleavage steps under the strain rate of 10[Formula: see text] s[Formula: see text], indicating a typical brittle fracture mode. When the strain rate is 10[Formula: see text] or 10[Formula: see text] s[Formula: see text], a great amount of dimples with few cleavage steps were observed, showing a transition from brittle to plastic deformation with increasing strain rate.

Compressive and tensile deformation behavior of consolidated Fe

2008 ◽  
Vol 493 (1-2) ◽  
pp. 226-231 ◽  
Author(s):  
S. Cheng ◽  
W.W. Milligan ◽  
X.-L. Wang ◽  
H. Choo ◽  
P.K. Liaw
Keyword(s):  
Deformation Behavior ◽  
Tensile Deformation ◽  
Tensile Deformation Behavior
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