FEM-thermodynamic simulation methodology to predict the influence of t8/5 on the coarse grain heat-affected zone of a Cr-Mo low-alloy steel pipe

2020 ◽  
Vol 60 ◽  
pp. 520-529
Author(s):  
Paulo Henrique Grossi Dornelas ◽  
João da Cruz Payão Filho ◽  
Francisco Werley Cipriano Farias ◽  
Victor Hugo Pereira Moraes e Oliveira ◽  
Diogo de Oliveira Moraes ◽  
...  
Keyword(s):  
Alloy Steel ◽  
Heat Affected Zone ◽  
Thermodynamic Simulation ◽  
Steel Pipe ◽  
Coarse Grain ◽  
Low Alloy Steel ◽  
Simulation Methodology

Effect of Microstructure on High-Strength Low-Alloy Steel Welded Joint Toughness with Simulation of Heat-Affected Zone Coarse-Grained Area

Metallurgist ◽  
2021 ◽  
Vol 64 (9-10) ◽  
pp. 875-884
Author(s):  
K. G. Vorkachev ◽  
P. P. Stepanov ◽  
L. I. Éfron ◽  
M. M. Kantor ◽  
A. V. Chastukhin ◽  
...  
Keyword(s):  
Alloy Steel ◽  
Heat Affected Zone ◽  
Welded Joint ◽  
High Strength ◽  
Coarse Grained ◽  
Low Alloy Steel ◽  
Effect Of Microstructure

Influence of welding interpass temperature on Charpy V-notch impact energy of coarse-grain heat-affected zone of AISI 4130 steel pipe

2020 ◽  
Vol 108 (7-8) ◽  
pp. 2197-2211 ◽  
Author(s):  
Paulo Henrique Grossi Dornelas ◽  
Francisco Werley Cipriano Farias ◽  
Victor Hugo Pereira Moraes e Oliveira ◽  
Diogo de Oliveira Moraes ◽  
Petrônio Zumpano Júnior ◽  
...  
Keyword(s):  
Impact Energy ◽  
Heat Affected Zone ◽  
Steel Pipe ◽  
Coarse Grain ◽  
Aisi 4130 ◽  
Interpass Temperature

Fracture Toughness in the Ductile-Brittle Transition and Thermal Ageing Behavior of Decarburized Heat Affected Zone of Alloy 52 Dissimilar Metal Welds of Nuclear Components

2014 ◽  
Author(s):  
Pierre Joly ◽  
Miguel Yescas ◽  
Elisabeth Keim
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Alloy Steel ◽  
Heat Affected Zone ◽  
Power Plants ◽  
Base Alloy ◽  
Thermal Ageing ◽  
Low Alloy Steel ◽  
Dissimilar Metal ◽  
Brittle Transition

Dissimilar metal welds (DMW) are used in nuclear power plants between the nozzles of main components in low alloy steel and stainless steel pipes, or safe-ends connected to the main coolant line pipes. AREVA proposes for EPR™ an improved design of DMW involving narrow gap welding without buttering between the low alloy steel nozzles and the stainless steel safe-ends, and the use of a corrosion resistant weld filler metal (Alloy 52). AREVA performed a thorough characterization of this type of welds, which shows a particular microstructure close to the fusion line between the low alloy steel and the nickel base alloy, where the heat affected zone of the low alloy steel is decarburized. This paper presents results of fracture toughness tests performed with the crack tip located in this area, in the ductile to brittle transition in the as post-welded heat treated condition and after thermal ageing. The results show an excellent fracture toughness behavior of this particular area, compared to that of low alloy steel parent metal.

Local mechanical properties of intercritically reheated coarse grained heat affected zone in low alloy steel

2014 ◽  
Vol 59 ◽  
pp. 135-140 ◽  
Author(s):  
Veronica G. Haugen ◽  
Bjørn Rune Sørås Rogne ◽  
Odd M. Akselsen ◽  
Christian Thaulow ◽  
Erling Østby
Keyword(s):  
Mechanical Properties ◽  
Alloy Steel ◽  
Heat Affected Zone ◽  
Coarse Grained ◽  
Low Alloy Steel
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