Serrated flow behavior and microstructure evolution of Inconel 625 superalloy during plane-strain compression with different strain rates

2021 ◽  
pp. 160648
Author(s):  
Xudong Liu ◽  
Jiangkun Fan ◽  
Kaidi Li ◽  
Yuelin Song ◽  
Degui Liu ◽  
...  
Keyword(s):  
Plane Strain ◽  
Microstructure Evolution ◽  
Flow Behavior ◽  
Plane Strain Compression ◽  
Inconel 625 ◽  
Strain Rates ◽  
Serrated Flow ◽  
Inconel 625 Superalloy

An Investigation of the Dynamic Recrystallisation Behaviour of Magnesium AZ31 Alloy at 450°C Using Plane Strain Compression Testing as a Tool

2012 ◽  
Vol 715-716 ◽  
pp. 164-169
Author(s):  
Bradley P. Wynne ◽  
R. Bhattacharya ◽  
Bruce Davis ◽  
W.M. Rainforth
Keyword(s):  
Strain Rate ◽  
Plane Strain ◽  
Testing Machine ◽  
Az31 Alloy ◽  
Plane Strain Compression ◽  
Strain Rates ◽  
Basal Texture ◽  
Magnesium Az31 ◽  
Dynamic Recrystallisation ◽  
Double Hit

The dynamic recrystallisation (DRX) behaviour of magnesium AZ31 is investigated using a plane strain compression (PSC) testing machine at 450°C. The variables included strain rate, double hit including intermittent anneal and double hits with different strain rate at each hit. The alloy shows higher peak stress and strain with increasing strain rates. Predominant basal texture with different intensities are observed at different strain rates. The annealing treatment between double tests leads to strong basal texture. Reversal of strain rate during double hit results in similar flow curves. This shows that in AZ31 alloy, DRX mechanism is independent of the initial microstructure and only depends on the test condition viz. temperature, strain rate and total equivalent strain.

Flow behavior and microstructure evolution of 7055 aluminum alloy impacted at high strain rates

2016 ◽  
Vol 677 ◽  
pp. 203-210 ◽  
Author(s):  
Shengdan Liu ◽  
Shaoling Wang ◽  
Lingying Ye ◽  
Yunlai Deng ◽  
Xinming Zhang
Keyword(s):  
Aluminum Alloy ◽  
Microstructure Evolution ◽  
High Strain ◽  
Flow Behavior ◽  
Strain Rates ◽  
High Strain Rates ◽  
7055 Aluminum Alloy

The effect of deformation temperature on the microstructure evolution of Inconel 625 superalloy

2011 ◽  
Vol 414 (3) ◽  
pp. 440-450 ◽  
Author(s):  
Qingmiao Guo ◽  
Defu Li ◽  
Shengli Guo ◽  
Haijian Peng ◽  
Jie Hu
Keyword(s):  
Microstructure Evolution ◽  
Deformation Temperature ◽  
Inconel 625 ◽  
Inconel 625 Superalloy

Experimental Estimation of Strain Rate during FSW of Al-Alloy Using Plane-Strain Compression

2008 ◽  
Vol 580-582 ◽  
pp. 299-302 ◽  
Author(s):  
Kunitaka Masaki ◽  
Yutaka S. Sato ◽  
Masakatsu Maeda ◽  
Hiroyuki Kokawa
Keyword(s):  
Strain Rate ◽  
Plane Strain ◽  
Travel Speed ◽  
Plane Strain Compression ◽  
Stir Zone ◽  
Grain Structure ◽  
Al Alloy ◽  
Strain Rates ◽  
Friction Stir ◽  
Grain Structures

Friction stir welding (FSW) makes the stir zone with fine recrystallized grain structure. The recrystallized grains would be formed through dynamic recrystallization at high temperatures and high strain-rate. The present study experimentally simulated the dynamically recrystallized microstructure of a friction stir welded Al alloy 1050 produced at 600 rpm rotation and 100 mm/min travel speed, using combination of the plane-strain compression at various strain rates and the subsequent cooling along the cooling cycle of FSW. The equiaxed grain structures similar to the microstructure of the stir zone were produced at strain rates between 0.1 and 32 s-1; the grain size decreased with increasing strain rate. Strain rate during the FSW could be estimated to be about 1.8 s-1. The present study suggests that plane-strain compression test can simulate the recrystallized grain structure of the friction stir welds.

Study on Microstructure Evolution of TA1 during Plane Compression and its Similarity to Power Spinning

2011 ◽  
Vol 314-316 ◽  
pp. 805-809 ◽  
Author(s):  
Yong Chen ◽  
Wen Chen Xu ◽  
De Bin Shan ◽  
Bin Guo
Keyword(s):  
Plane Strain ◽  
Microstructure Evolution ◽  
Plane Strain Compression ◽  
Evolution Mechanism ◽  
Power Spinning ◽  
Compression Model ◽  
Isothermal Plane ◽  
Spinning Process ◽  
Plane Compression ◽  
And Control

The hot power spinning process of TA1 has been studied on the base of isothermal plane compression model in this paper. The microstructures of spun workpieces and plane compression specimens are analyzed and the microstructure evolution mechanism has been investigated. The results reveal that the microstructure evolution has similar mechanism between power spinning and plane compression. Plane strain compression can be used to predict and control the microstructure of as-spun TA1 workpiece.

Plane Strain Compression of Single Crystalline Ni3Al-Base Intermetallic Compounds

2005 ◽  
Vol 495-497 ◽  
pp. 767-774
Author(s):  
S.H. Song ◽  
Kyosuke Kishida ◽  
Masahiko Demura ◽  
Myung Hoon Oh ◽  
Dang Moon Wee ◽  
...  
Keyword(s):  
Intermetallic Compounds ◽  
Plane Strain ◽  
Deformation Behavior ◽  
Single Phase ◽  
Flow Behavior ◽  
Plane Strain Compression ◽  
Compression Tests ◽  
Two Phase ◽  
Single Crystalline ◽  
The Difference

Anisotropic deformation behavior of single crystalline Ni3Al-base intermetallic compounds, including Ni3Al single-phase and Ni/Ni3Al two-phase alloys, was systematically studied by the plane strain compression tests. Plastic flow behavior of single phase Ni3Al is strongly dependent on the initial crystal orientation and the flow stress becomes higher with increasing the numbers of the operative slip planes. In the case of the Ni/Ni3Al two phase alloys, the flow behavior is found to be divided into two stages. Such flow behavior is considered to be closely related to the difference in the deformation behavior between Ni solid solution and Ni3Al precipitates.

An Investigation of Microstructure Inhomogeneity in Waspaloy Subjected to Plane Strain Compression Testing

2007 ◽  
Vol 558-559 ◽  
pp. 589-594 ◽  
Author(s):  
M.J. Thomas ◽  
Bradley P. Wynne ◽  
Eric J. Palmiere ◽  
Ken P. Mingard ◽  
Bryan Roebuck
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Plane Strain ◽  
High Strain ◽  
Plane Strain Compression ◽  
Strain Rates ◽  
Nickel Based Superalloy ◽  
Nominal Strain ◽  
Plane Strain Compression Test ◽  
Low Strain Rate

An assessment of the inhomogeneity of microstructure generated within plane strain compression test specimens has been performed using the nickel based superalloy, Waspaloy. Two variables were investigated: the effect of strain rate and the effect of friction at the tool/specimen interface. Tests were performed at 1040°C at nominal strain rates of 0.01 and 1 s-1 with and without a glass based lubricant. At the low strain rate the microstructure was relatively homogeneous regardless of the friction conditions. At the high strain rate there was significant microstructure variation from surface to mid plane which was further exaggerated by increased friction. Quantification of the inhomogeneity, however, is non-trivial in this alloy due to the complicated recrystallisation behaviour it exhibits and difficulty in differentiating between recrystallised and non-recrystallised grains.

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