Influence of temperature cycles on the microstructures and mechanical properties of the partially melted zone in the fusion welded joints of 2219 aluminum alloy

2015 ◽  
Vol 623 ◽  
pp. 38-48 ◽  
Author(s):  
Quan Li ◽  
Aiping Wu ◽  
Yanjun Li ◽  
Guoqing Wang ◽  
Dongyang Yan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Welded Joints ◽  
Influence Of Temperature ◽  
Temperature Cycles ◽  
Melted Zone ◽  
2219 Aluminum Alloy ◽  
Microstructures And Mechanical Properties ◽  
Fusion Welded Joints

Segregation in fusion weld of 2219 aluminum alloy and its influence on mechanical properties of weld

2017 ◽  
Vol 27 (2) ◽  
pp. 258-271 ◽  
Author(s):  
Quan LI ◽  
Ai-ping WU ◽  
Yan-jun LI ◽  
Guo-qing WANG ◽  
Bo-jin QI ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
2219 Aluminum Alloy ◽  
Fusion Weld

Microstructures and Mechanical Properties of Welded Joints of Several High Tensile Strength Steel

2018 ◽  
Vol 941 ◽  
pp. 224-229
Author(s):  
Takahiro Izumi ◽  
Tatsuya Kobayashi ◽  
Ikuo Shohji ◽  
Hiroaki Miyanaga
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Weld Metal ◽  
Welded Joints ◽  
Welded Joint ◽  
Steel Plates ◽  
Fatigue Properties ◽  
High Tensile Strength ◽  
The Matrix ◽  
Microstructures And Mechanical Properties

Microstructures and mechanical properties of lap fillet welded joints of several high and ultra-high tensile strength steel by arc welding were investigated. Steel plates having tensile strength of 400 (SPH400W), 590 (SPC590Y, SPC590R), 980 (SPC980Y) and 1500 MPa (SAC1500HP) class with 2 mm thickness were prepared. Four types of joints were formed by MAG welding; SPH400W/SPH400W, SPC590Y/SPC590Y, SPC980Y/SPC980Y and SAC1500HP/SPC590R. In joints with SPC590Y, SPC980Y and SAC1500HP steel which matrixes are martensitic microstructures, the HAZ softens due to transformation of martensite into ferrite with precipitating cementite. By using high and ultra-high tensile strength steel, the weld metal is strengthened due to dilution of the matrix into the weld metal and thus tensile shear strength of the welded joint increases. In the fatigue test, similar S-N diagrams were obtained in the all welded joints investigated. It seems that the effect of stress concentration due to the shape of the welded joint on fatigue properties is larger than that of the strength of the matrix.

Mechanical properties of electric assisted friction stir welded 2219 aluminum alloy

2019 ◽  
Vol 44 ◽  
pp. 197-206 ◽  
Author(s):  
Shujun Chen ◽  
Hongwei Zhang ◽  
Xiaoqing Jiang ◽  
Tao Yuan ◽  
Yang Han ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Friction Stir ◽  
2219 Aluminum Alloy
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