In situ investigation of extension twinning-detwinning and its effect on the mechanical behavior of AZ31B magnesium alloy

2017 ◽  
Vol 132 ◽  
pp. 57-65 ◽  
Author(s):  
B.L. Wu ◽  
G.S. Duan ◽  
X.H. Du ◽  
L.H. Song ◽  
Y.D. Zhang ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Mechanical Behavior ◽  
Az31b Magnesium Alloy ◽  
In Situ Investigation

Fatigue of Friction Stir and GTAW Welded AZ31B Magnesium Alloy

2012 ◽  
Author(s):  
J. A. Ávila ◽  
H. E. Jaramillo ◽  
F. Franco
Keyword(s):  
Tensile Strength ◽  
Friction Stir Welding ◽  
Solid State ◽  
Magnesium Alloy ◽  
Mechanical Behavior ◽  
Arc Welding ◽  
Az31b Magnesium Alloy ◽  
Friction Stir ◽  
Gas Tungsten Arc ◽  
Hardness Tests

The mechanical behavior of butt welds made on AZ31B magnesium alloy plates by solid-state friction stir welding (FSW) and gas tungsten arc welding (GTAW) is presented. Fatigue, tensile strength, and hardness tests were performed. Also, fractographic analyses of the weld microstructures were conducted. Tests results show that the fatigue performance of FSW joints was superior to that of conventional welding (GTAW).

Effect of Strain Rate on Mechanical Behavior of Extruded AZ31B Magnesium Alloy under Tensile Deformation

2012 ◽  
Vol 560-561 ◽  
pp. 979-983
Author(s):  
Chang Jian Geng ◽  
Bao Lin Wu ◽  
Yan Dong Wang
Keyword(s):  
Magnesium Alloy ◽  
Brittle Fracture ◽  
Tensile Test ◽  
Strain Rate ◽  
Mechanical Behavior ◽  
Room Temperature ◽  
Tensile Deformation ◽  
Az31b Magnesium Alloy ◽  
Axial Tensile ◽  
Fracture Character

Uni-axial tensile test was conducted at room temperature on a weak texture AZ31B magnesium alloy at different strain rate, from 2.8×10-5s-1 to 1.1×10-1s-1. The mechanical behavior was investigated. It was found that as strain rate is increased, flat character of the stress-strain curves can be found and {10-12} tension twinning is responsible for this phenomenon. The sample exhibites a brittle fracture at 1.1×10-1s-1 strain rate while exhibites a ductile fracture character at 2.8×10-5s-1 strain rate.

Sign in / Sign up

Export Citation Format

Share Document