Hot deformation behaviour of thixocast Al–Si–Mg alloy during compression at elevated temperatures

2010 ◽  
Vol 26 (1) ◽  
pp. 121-126 ◽  
Author(s):  
M. Haghshenas ◽  
A. Zarei-Hanzaki ◽  
A. Sayed
2014 ◽  
Vol 922 ◽  
pp. 310-315 ◽  
Author(s):  
Abu Syed Humaun Kabir ◽  
Jing Su ◽  
Mehdi Sanjari ◽  
In Ho Jung ◽  
Stephen Yue

Magnesium alloys have low formability at room temperature associated with its hexagonal closed pack structure. Formation of precipitates during deformation may pin the grain boundary and reduce the final grain size, which literally means the improvement of formability. The aim of this study is to design magnesium alloys that are capable of forming precipitate during hot deformation. Thermodynamic modeling software, FactSage, has been used to design Mg-Al-Sn alloys based on forming target Mg2Sn precipitate at hot deformation temperatures between 250 and 350oC. Uniaxial compression at elevated temperatures has been performed to simulate the hot deformation behaviour as well as to enhance the formation of precipitates. Strain rates used in this study were in the range of 1.0 to 0.001s-1for a constant deformation degree of 90%. It was found that the formation of precipitate depends on deformation temperature and strain rate. Measured amounts of precipitate were compared with the calculated equilibrium results from FactSage.


2015 ◽  
Vol 641 ◽  
pp. 160-171 ◽  
Author(s):  
Parvez Mannan ◽  
Andrii G. Kostryzhev ◽  
Hatem Zurob ◽  
Elena V. Pereloma

2011 ◽  
Vol 528 (28) ◽  
pp. 8084-8089 ◽  
Author(s):  
Dejun Li ◽  
Yaorong Feng ◽  
Zhifu Yin ◽  
Fengshou Shangguan ◽  
Ke Wang ◽  
...  

2018 ◽  
Vol 34 (10) ◽  
pp. 1228-1238 ◽  
Author(s):  
Haiyan Tang ◽  
Maosheng Yang ◽  
Wenjia Meng ◽  
Peng Lan ◽  
Chen Wang

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