scholarly journals The Wear Responses of the Welded Joints of ASTM A335 Gr. P11 Steels Affected by Accelerated Flow Corrosion

Materials ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 3630
Author(s):  
Montero ◽  
Filgueira ◽  
García-Diez ◽  
Mier ◽  
Camba
Keyword(s):  
Alloy Steel ◽  
Welded Joints ◽  
Wear Behavior ◽  
Post Weld Heat Treatment ◽  
Low Alloy Steel ◽  
Ferritic Alloy ◽  
Accelerated Corrosion ◽  
Welding Procedure ◽  
Accelerated Flow ◽  
Flow Accelerated Corrosion

This study shows the effects of wear on welded joints of ASTM A355 Gr. P11 “Seamless Ferritic Alloy-Steel Pipe for High Temperature Service” steels subjected to the welding procedures established by codes B31.1 and ASME III. The standard welding procedure establishes the following steps: a preheating process, welding and post-weld heat treatment. This generates a wear behavior that depends on the thermal cycles to which the different areas of the joint are subjected. The objective of this article was the study of the behavior against the flow-accelerated corrosion of the welded joints of a low alloy steel. There is the possibility of establishing welding procedures other than those established, while maintaining the safety ranges, depending on the field of application for the steel.

Alternative Approach for Qualification of Temperbead Welding in the Nuclear Industry

2012 ◽  
Author(s):  
Steven L. McCracken ◽  
Richard E. Smith
Keyword(s):  
Heat Treatment ◽  
Fracture Toughness ◽  
Alloy Steel ◽  
Nuclear Power ◽  
Post Weld Heat Treatment ◽  
Nuclear Power Industry ◽  
Low Alloy Steels ◽  
Low Alloy Steel ◽  
Alloy Steels ◽  
Weld Heat

Temperbead welding is common practice in the nuclear power industry for in-situ repair of quenched and tempered low alloy steels where post weld heat treatment is impractical. The temperbead process controls the heat input such that the weld heat-affected-zone (HAZ) in the low alloy steel is tempered by the welding heat of subsequent layers. This tempering eliminates the need for post weld heat treatment (PWHT). Unfortunately, repair organizations in the nuclear power industry are experiencing difficulty when attempting to qualify temperbead welding procedures on new quenched and tempered low alloy steel base materials manufactured to modern melting and deoxidation practices. The current ASME Code methodology and protocol for verification of adequate fracture toughness in materials was developed in the early 1970s. This paper reviews typical temperbead qualification results for vintage heats of quenched and tempered low alloy steels and compares them to similar test results obtained with modern materials of the same specification exhibiting superior fracture toughness.

Effect of modifying microadditions on the corrosion resistance of welded joints in low‐alloy steel

2001 ◽  
Vol 15 (2) ◽  
pp. 140-145
Author(s):  
V D Makarenko ◽  
V A Belyaev ◽  
N N Prokhorov ◽  
E N Galichenko ◽  
B Yu Chernov ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Alloy Steel ◽  
Welded Joints ◽  
Low Alloy Steel

scholarly journals Impact Toughness of High-Strength Low-Alloy Steel Welded Joints

2018 ◽  
Vol 3 (3) ◽  
pp. 98-104 ◽  
Author(s):  
Andreja Ilić ◽  
Lozica Ivanović ◽  
Blaža Stojanović ◽  
Danica Josifović ◽  
Eleonora Desnica
Keyword(s):  
Impact Toughness ◽  
Alloy Steel ◽  
Welded Joints ◽  
High Strength ◽  
Low Alloy Steel
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