Fatigue crack growth behavior of heat affected zone in P92 steel weldment

2004 ◽  
Vol 10 (1) ◽  
pp. 19-25 ◽  
Author(s):  
Bum Joon Kim ◽  
Seog Hyeon Ryu ◽  
Byeong Soo Lim
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Heat Affected Zone ◽  
Growth Behavior ◽  
Crack Growth Behavior ◽  
Fatigue Crack Growth Behavior ◽  
P92 Steel ◽  
Steel Weldment

Microstructure and Fatigue Crack Growth Behavior of Heat Affected Zone in P92 Steel Weldment

2004 ◽  
Vol 261-263 ◽  
pp. 1185-1190 ◽  
Author(s):  
Bum Joon Kim ◽  
Byeong Soo Lim
Keyword(s):  
Fatigue Crack ◽  
High Temperature ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Heat Affected Zone ◽  
Power Plants ◽  
Fusion Line ◽  
Crack Growth Behavior ◽  
P92 Steel ◽  
Steel Weldment

Fatigue strength and life of weldment at high temperature is very important for high temperature materials used in power plants. In this study, fatigue crack growth tests were performed at high temperature to examine the effect of microstructure on the crack growth resistance in P92 steel weldment. Microhardness of the weldment was also investigated for better analysis. CT specimens were made from a welded plate with notches at different distances from the fusion line. High fatigue crack growth rates were found along the fusion line and fusion line+2mm line into the heat affected zone.

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