Microstructure evolution during superplastic deformation of an Al-coated Mg alloy sheet

2019 ◽  
Vol 805 ◽  
pp. 436-443 ◽  
Author(s):  
Toko Tokunaga ◽  
Munekazu Ohno
Keyword(s):  
Microstructure Evolution ◽  
Superplastic Deformation ◽  
Alloy Sheet ◽  
Mg Alloy

Superplastic deformation of Al-Li-Cu-Mg alloy sheet

1986 ◽  
Vol 21 (4) ◽  
pp. 1368-1376 ◽  
Author(s):  
A. J. Shakesheff ◽  
P. G. Partridge
Keyword(s):  
Superplastic Deformation ◽  
Alloy Sheet ◽  
Mg Alloy

The Microstructure Evolution and Twinning Characterization of AZ31 Mg Alloy Sheet in Low-Temperature Bending Process

2013 ◽  
Vol 690-693 ◽  
pp. 16-19
Author(s):  
Jun Wei Liu ◽  
Shi Qiang Lu ◽  
Ke Lu Wang ◽  
Gui Fa Li ◽  
Xuan Xiao
Keyword(s):  
Low Temperature ◽  
Microstructure Evolution ◽  
Room Temperature ◽  
Alloy Sheet ◽  
Mg Alloy ◽  
Az31 Mg Alloy ◽  
Bending Process ◽  
Hot Rolled ◽  
The Relationship

The relationship among stress, cavities and twinning in the room-temperature bending process of hot-rolled AZ31 Mg alloy sheet was researched. It can be seen that the mount of twins which was tightly affected by stress value increases with the distance to press point. Otherwise, the cavities and twinning which seem totally independent, in fact affect with each other. Some cavities were hindered by twins and can not further grow up. Then, the relationship between slip and twinning was also roughly discussed. The dislocation lines in twins can be thought to release the stress focus and were beneficial for deformation.

Research on Temperature Changes and Microstructure Evolution of Steel Target after the Penetration by Copper Jet

2011 ◽  
Vol 311-313 ◽  
pp. 953-956
Author(s):  
Hao Chen ◽  
Gang Tao
Keyword(s):  
Grain Size ◽  
High Temperature ◽  
Temperature Distribution ◽  
Microstructure Evolution ◽  
Deformation Zone ◽  
Superplastic Deformation ◽  
Theoretical Formula ◽  
Temperature Changes ◽  
Normal Deformation ◽  
Steel Target

In order to study dynamic response of metal, this paper makes use of theoretical formula to investigate changes of temperature and grain size on steel target after the penetration of copper jet based on data gathered from the experiments. Deformed target penetrated by copper jet could be divided into superplastic deformation zone and normal deformation zone according to the different microstructure. Temperature distribution of each deformation zones is in turn calculated by two constitutive equations. The results indicate that areas with high temperature concentrate on the narrow zone near the penetrated channel. Then, the calculation of grain size conforms to the observation. It is obviously proven that the method used in this paper is trustworthy for calculating the changes of temperature and grain size of target caused by penetration.

X-ray microtomography study of cavity coalescence during superplastic deformation of an Al–Mg alloy

2000 ◽  
Vol 16 (11-12) ◽  
pp. 1299-1301 ◽  
Author(s):  
C.F. Martin ◽  
C. Josserond ◽  
J.J. Blandin ◽  
L. Salvo ◽  
P. Cloetens ◽  
...  
Keyword(s):  
Superplastic Deformation ◽  
Mg Alloy ◽  
X Ray
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