Study on Constitutive Characteristic of As-Cast AA6061 Alloy under Plane Strain Compression Based on Orthogonal Analysis
Joint Authors
Qi, Hui-Ping
Qin, Fangcheng
Kang, Yuehua
Liu, Chongyu
Source
Advances in Materials Science and Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-09-30
Country of Publication
Egypt
No. of Pages
11
Abstract EN
Constitutive relationship and microstructure evolution of as-cast AA6061 alloy were studied using plane strain compression (PSC) under the temperature of 300–450°C, the strain rate of 0.01–5 s−1, and the strain of 0.9.
It is found that the flow stress decreases with increasing temperature and decreasing strain rate.
The dynamic recovery (DRV) and recrystallization (DRX) are found to easily occur by optical microscopic (OM) techniques.
The softening mechanisms are mainly due to DRV that is accompanied by a slight DRX.
Based on orthogonal analysis, the strain should be taken into account to derive the constitutive model accurately, and the interaction effect between the strain rate and temperature on the stress can be neglected when compared with the individual effect of the strain rate and temperature.
The strain-compensated constitutive models based on orthogonal experiment are established, and the activation energy Q is found to be 158.465 kJ/mol.
The correlation coefficient and the average absolute relative error between the experimental and the predicted results are 0.9946 and 4.2656%, respectively.
The developed models can be used to predict the stress precisely at a wide range of strains, strain rates, and temperatures.
American Psychological Association (APA)
Qin, Fangcheng& Qi, Hui-Ping& Kang, Yuehua& Liu, Chongyu. 2019. Study on Constitutive Characteristic of As-Cast AA6061 Alloy under Plane Strain Compression Based on Orthogonal Analysis. Advances in Materials Science and Engineering،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1121294
Modern Language Association (MLA)
Qin, Fangcheng…[et al.]. Study on Constitutive Characteristic of As-Cast AA6061 Alloy under Plane Strain Compression Based on Orthogonal Analysis. Advances in Materials Science and Engineering No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1121294
American Medical Association (AMA)
Qin, Fangcheng& Qi, Hui-Ping& Kang, Yuehua& Liu, Chongyu. Study on Constitutive Characteristic of As-Cast AA6061 Alloy under Plane Strain Compression Based on Orthogonal Analysis. Advances in Materials Science and Engineering. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1121294
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121294