Weld metal composition change during conduction mode laser welding of aluminum alloy 5182

2001 ◽  
Vol 32 (1) ◽  
pp. 163-172 ◽  
Author(s):  
H. Zhao ◽  
T. Debroy
Keyword(s):  
Aluminum Alloy ◽  
Laser Welding ◽  
Weld Metal ◽  
Composition Change ◽  
Mode Laser ◽  
Aluminum Alloy 5182 ◽  
Metal Composition ◽  
Conduction Mode ◽  
Weld Metal Composition

Dynamic fracture toughness (JId) behavior of armor-grade Q&T steel weldments: Effect of weld metal composition and microstructure

2009 ◽  
Vol 15 (6) ◽  
pp. 1017-1026 ◽  
Author(s):  
Govindaraj Magudeeswaran ◽  
Visvalingam Balasubramanian ◽  
S. Sathyanarayanan ◽  
Gankidi Madhusudhan Reddy ◽  
A. Moitra ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Weld Metal ◽  
Dynamic Fracture ◽  
Dynamic Fracture Toughness ◽  
Metal Composition ◽  
Weld Metal Composition

Metal-Cored Welding GMAW Consumables Development for Girth Welding of X-100 Pipe

2006 ◽  
Author(s):  
Viadyanath Rajan ◽  
Dennis Hartman
Keyword(s):  
Impact Toughness ◽  
Weld Metal ◽  
Response Surface ◽  
Charpy Impact ◽  
Scale Production ◽  
Cored Wire ◽  
Charpy Impact Toughness ◽  
Metal Composition ◽  
Metal Yield ◽  
Weld Metal Composition

Metal-cored wire electrodes with different compositions were used to make girth weld joints at a heat input of 0.7–0.8 kJ/mm. Design of experiments methodology was used to create a response surface primarily in carbon (C), manganese (Mn) and nickel (Ni) space in steel containing molybdenum (Mo), titanium (Ti), and boron (B) additions. This allowed the modeling of all-weld-metal yield strength, tensile strength and Charpy impact toughness as a function of weld metal composition. Results indicated that weld metal yield and tensile strengths have a linear dependence on the %C, %Mn and %Ni content of the weld. The Charpy impact toughness behavior at −20° C was more complex, initially showing a dependence on %C and %Ni in small scale trials, and subsequently showing a dependence on the %oxygen (O) and %Mn content in full scale production trials. These results can be combined for graphical optimization of the response surface to identify regions in weld metal composition that contain the desired weld metal yield, tensile and Charpy impact toughness for design of metal-cored wire electrodes for the welding of X-100 pipe. These results and their implications for design of girth welds in X-100 pipe are presented in this study.

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