Superior low-temperature superplasticity in fine-grained ZK60 Mg alloy sheet produced by a combination of repeated upsetting process and extrusion

2021 ◽  
pp. 141444
Author(s):  
N. Fakhar ◽  
M. Sabbaghian ◽  
P. Nagy ◽  
K. Fekete ◽  
J. Gubicza
Keyword(s):  
Low Temperature ◽  
Alloy Sheet ◽  
Mg Alloy ◽  
Fine Grained

Effect of pressurization profile on the deformation characteristics of fine-grained AZ31B Mg alloy sheet during gas blow forming

2010 ◽  
Vol 210 (12) ◽  
pp. 1673-1679 ◽  
Author(s):  
Pin-Hou Sun ◽  
Horng-Yu Wu ◽  
Hsin-Han Tsai ◽  
Chih-Chao Huang ◽  
Ming-Da Tzou
Keyword(s):  
Alloy Sheet ◽  
Mg Alloy ◽  
Deformation Characteristics ◽  
Fine Grained

Press Forming Technology Using Superplastic Deformation for Mg Alloy Sheet

2005 ◽  
Vol 488-489 ◽  
pp. 571-574 ◽  
Author(s):  
Hiroyuki Fujii ◽  
Hajime Iwasaki ◽  
Jacky Kazuo Araki
Keyword(s):  
High Strain ◽  
Hydraulic Press ◽  
Alloy Sheet ◽  
Mg Alloy ◽  
Rolled Sheet ◽  
Blank Holder ◽  
Fine Grained ◽  
Forming Technology ◽  
Az31 Mg Alloy ◽  
Cylindrical Cup

The square-cylindrical cup of AZ31 Mg alloy with a depth of 50mm and a width of 50 mm was successfully deep drawn from a rolled sheet with a thickness of 0.5 mm using a hydraulic press machine with a capacity of 60 tons. The blank was heated between the die and the blank holder kept in a temperature of 300 oC .The forming time was about 3 seconds. The fine-grained microstructure was observed at the corner with a sever strain. The grain refinement caused by the dynamic recrystallization contributed to generate high strain-rate superplasticity.

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.

TRI-MARK TM-811N2

Alloy Digest ◽  
1983 ◽  
Vol 32 (4) ◽  
Keyword(s):  
Low Temperature ◽  
High Strength ◽  
Heat Treating ◽  
Low Alloy Steels ◽  
Nickel Steel ◽  
Fine Grained ◽  
Subzero Temperatures ◽  
Steel Weld Metal ◽  
Alloy Steels ◽  
Welding Electrode

Abstract TRI-MARK TM-811N2 is a flux-cored welding electrode for all position semiautomatic arc welding. It is designed to weld 2-3% nickel steels for applications requiring good toughness at subzero temperatures; in addition, it is used to weld various other high-strength low-alloy steels and various fine-grained steels with low-temperature toughness. Tri-Mark TM-811N2 is used to deposit typically 2.35% nickel steel weld metal with good low-temperature impact properties. It is used for shipbuilding, oil rigs and similar structures. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: SA-389. Producer or source: Tri-Mark Inc..

Microstructure, mechanical behavior and low temperature superplasticity of ECAP processed ZM21 Mg alloy

2015 ◽  
Vol 638 ◽  
pp. 267-276 ◽  
Author(s):  
Ehsan Mostaed ◽  
Alberto Fabrizi ◽  
David Dellasega ◽  
Franco Bonollo ◽  
Maurizio Vedani
Keyword(s):  
Low Temperature ◽  
Mechanical Behavior ◽  
Mg Alloy

Effect of Grain Size and Microstructure on Appearance of Low Temperature Superplasticity in Al-Mg Alloy

2004 ◽  
Vol 447-448 ◽  
pp. 435-440 ◽  
Author(s):  
M. Noda ◽  
Kunio Funami ◽  
M. Hirohashi ◽  
M. Kobayashi
Keyword(s):  
Grain Size ◽  
Low Temperature ◽  
Mg Alloy

Evolutions of Microstructure for Multilayered Al-Mg Alloy Composites by Accumulation Roll Bonding (ARB) Process

2011 ◽  
Vol 411 ◽  
pp. 527-531
Author(s):  
Bing Zhang ◽  
Zhong Wei Chen ◽  
Shou Qian Yuan ◽  
Tian Li Zhao
Keyword(s):  
Multilayer Structure ◽  
Optical Microscope ◽  
Alloy Layer ◽  
Mg Alloy ◽  
Micro Hardness ◽  
Roll Bonding ◽  
Fine Grained ◽  
Hardness Tester ◽  
Average Grain Size ◽  
Evolution Of Microstructure

In this paper, accumulative roll bonding (ARB) has been used to prepare the Al/Mg alloy multilayer structure composite materials with 1060Al sheet and MB2 sheet. The evolution of microstructure of the cladding materials during ARB processes was observed by optical microscope, scanning electron microscopy, and micro-hardness was measured by micro-hardness tester. The results show that a multilayer structure material of Al/Mg alloy with excellent bonding characteristics and fine grained microstructure was prepared by ARB processes. With the ARB cycles increasing, Mg alloy layer in multilayer composite material was necked and fractured, and the hardness of the Al and Mg alloy was increased. Average grain size was less than 1μm after ARB4 cycles.

On the recovery and low-temperature deformation of Al-6%Mg alloy

1959 ◽  
Vol 9 (6) ◽  
pp. 7-15
Author(s):  
Masanobu SASAGAWA ◽  
Shigeo KOBAYASHI ◽  
Jiro WADA
Keyword(s):  
Low Temperature ◽  
Mg Alloy ◽  
Temperature Deformation
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