Effect of pre-deformation on creep age forming of 2219 aluminum alloy: Experimental and constitutive modelling

2017 ◽  
Vol 683 ◽  
pp. 227-235 ◽  
Author(s):  
Youliang Yang ◽  
Lihua Zhan ◽  
Rulin Shen ◽  
Xuni Yin ◽  
Xicai Li ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Constitutive Modelling ◽  
2219 Aluminum Alloy ◽  
Creep Age Forming

scholarly journals Study on Quality Prediction of 2219 Aluminum Alloy Friction Stir Welding Based on Real-Time Temperature Signal

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3496
Author(s):  
Haijun Wang ◽  
Diqiu He ◽  
Mingjian Liao ◽  
Peng Liu ◽  
Ruilin Lai
Keyword(s):  
Aluminum Alloy ◽  
Friction Stir Welding ◽  
Prediction Model ◽  
Real Time ◽  
Support Vector ◽  
Weld Quality ◽  
Prediction Ability ◽  
Friction Stir ◽  
Temperature Signal ◽  
2219 Aluminum Alloy

The online prediction of friction stir welding quality is an important part of intelligent welding. In this paper, a new method for the online evaluation of weld quality is proposed, which takes the real-time temperature signal as the main research variable. We conducted a welding experiment with 2219 aluminum alloy of 6 mm thickness. The temperature signal is decomposed into components of different frequency bands by wavelet packet method and the energy of component signals is used as the characteristic parameter to evaluate the weld quality. A prediction model of weld performance based on least squares support vector machine and genetic algorithm was established. The experimental results showed that, when welding defects are caused by a sudden perturbation during welding, the amplitude of the temperature signal near the tool rotation frequency will change significantly. When improper process parameters are used, the frequency band component of the temperature signal in the range of 0~11 Hz increases significantly, and the statistical mean value of the temperature signal will also be different. The accuracy of the prediction model reached 90.6%, and the AUC value was 0.939, which reflects the good prediction ability of the model.

Segregation in fusion weld of 2219 aluminum alloy and its influence on mechanical properties of weld

2017 ◽  
Vol 27 (2) ◽  
pp. 258-271 ◽  
Author(s):  
Quan LI ◽  
Ai-ping WU ◽  
Yan-jun LI ◽  
Guo-qing WANG ◽  
Bo-jin QI ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
2219 Aluminum Alloy ◽  
Fusion Weld

scholarly journals Microstructural Evolution and Softening Behavior of Simulated Heat-Affected Zone in 2219 Aluminum Alloy

2017 ◽  
Vol 30 (12) ◽  
pp. 1177-1184 ◽  
Author(s):  
Xin-Jie Di ◽  
Hui-Juan Xie ◽  
Cui-Xin Chen ◽  
Cai-Yan Deng ◽  
Dong-Po Wang
Keyword(s):  
Aluminum Alloy ◽  
Microstructural Evolution ◽  
Heat Affected Zone ◽  
Softening Behavior ◽  
2219 Aluminum Alloy

The tensile properties of 2219 aluminum alloy plate butt joint welded by novel laser mirror welding

2022 ◽  
Vol 149 ◽  
pp. 107796
Author(s):  
Na Qi ◽  
Leilei Wang ◽  
Yanqiu Zhao ◽  
Shuhao Tian ◽  
Xiaohong Zhan
Keyword(s):  
Aluminum Alloy ◽  
Tensile Properties ◽  
Butt Joint ◽  
Alloy Plate ◽  
Laser Mirror ◽  
2219 Aluminum Alloy ◽  
Aluminum Alloy Plate

Effect of Combined Electromagnetic Fields on Microstructure and Properties of Large-Sized Ingot of 2219 Aluminum Alloy

2020 ◽  
Vol 993 ◽  
pp. 287-293
Author(s):  
Hao Dong Zhao ◽  
Zhi Feng Zhang ◽  
Yang Qiu ◽  
Bao Li ◽  
Ming Wei Gao
Keyword(s):  
Grain Size ◽  
Aluminum Alloy ◽  
Size Distribution ◽  
Grain Size Distribution ◽  
Electromagnetic Fields ◽  
Casting Process ◽  
Microstructure And Properties ◽  
Aluminum Ingot ◽  
2219 Aluminum Alloy ◽  
Dc Casting

Large-sized 2219 aluminum alloy ingot has wide application prospect in aerospace and military fields. Severe defects, such as coarse grain, the inhomogeneity of structure and macrosegregation occurred in large-sized aluminum ingot produced by normal DC casting. The application of a single magnetic field in DC casting process cannot solve these defects. In this paper, a new method with the combination of electromagnetic fields imposed on bulk melt treatment during DC casting was proposed. And a φ508 mm ingot of 2219 aluminum alloy was prepared in this method. Compared with the normal DC casting, the effect of the combined electromagnetic fields on the microstructure and properties was studied. The experimental results demonstrate that the application of the combined electromagnetic fields significantly refines the grains, and the grain size distribution on the cross section of the ingot tends to be more uniform as well as the mechanical properties are significantly improved. The microstructure and grain size distribution can be significantly affected by different combined electromagnetic fields. It is considered that the appropriate combined electromagnetic fields parameters play an important role in controlling the homogeneity of large-sized ingots.

scholarly journals Age hardening behaviors of spun 2219 aluminum alloy component

2020 ◽  
Vol 9 (3) ◽  
pp. 4706-4716
Author(s):  
Z.X. Li ◽  
M. Zhan ◽  
X.G. Fan ◽  
X.X. Wang ◽  
F. Ma
Keyword(s):  
Aluminum Alloy ◽  
Age Hardening ◽  
Alloy Component ◽  
2219 Aluminum Alloy

Mechanical properties of electric assisted friction stir welded 2219 aluminum alloy

2019 ◽  
Vol 44 ◽  
pp. 197-206 ◽  
Author(s):  
Shujun Chen ◽  
Hongwei Zhang ◽  
Xiaoqing Jiang ◽  
Tao Yuan ◽  
Yang Han ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Friction Stir ◽  
2219 Aluminum Alloy
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