An Analysis of High-Temperature Crack Growth in Type 308 Cb Stainless Steel and Its Weldment

1991 ◽  
Vol 113 (4) ◽  
pp. 538-541
Author(s):  
V. M. Radhakrishnan ◽  
M. Kamaraj
Keyword(s):  
Stainless Steel ◽  
Crack Growth ◽  
Creep Crack Growth ◽  
Crack Growth Behavior ◽  
Plane Stress Condition ◽  
Line Integral ◽  
Steady State Condition ◽  
Energy Rate ◽  
Creep Crack ◽  
Type C

Creep crack growth behavior of type 308 Cb austenitic stainless steel and its weldment has been studied in the temperature range of 875 to 1075 K under plane stress condition. The creep crack growth (CCG) rate has been correlated with parameters like stress intensity factor, K, net section stress and energy rate line integral C*. Among these parameters C* appears to describe well the CCG rate in both the cases of base metal and weldment. The rupture time tr of the cracked material has been found to be related to the energy rate line integral C*s in the steady-state condition, given by a relation of the type C*s · tr = constant.

Life Estimation of Cracked Stainless Steel Components Under Creep Conditions

1991 ◽  
Vol 113 (3) ◽  
pp. 303-306 ◽  
Author(s):  
V. M. Radhakrishnan ◽  
M. Kamaraj ◽  
V. V. Balasubramaniam
Keyword(s):  
Stainless Steel ◽  
Crack Growth ◽  
Nuclear Power ◽  
State Energy ◽  
Creep Crack Growth ◽  
Experimental Investigations ◽  
Plane Stress Condition ◽  
Line Integral ◽  
Energy Rate ◽  
Creep Crack

Experimental investigations have been carried out to study the creep crack growth in types 316, 308 Cb, and 304 L stainless steel in the temperature range of 873–1073 K under plane stress condition. Testings have been carried out with both the base metal and the welded composite joints, because such joints are commonly used in nuclear power industries. Among the various parameters tried to correlate the creep crack growth, the energy rate line integral has been found to give the best description of the crack growth rate. The steady-state energy rate line integral has been found to correlate well with the rupture time. Based on this observation, life estimations are presented for thin components containing various initial defect sizes.

The influence of fracture mechanisms on the creep crack growth behavior of 316 stainless steel

1997 ◽  
Vol 57 (5) ◽  
pp. 463-473 ◽  
Author(s):  
Koichi Yagi ◽  
Masaaki Tabuchi ◽  
Kiyoshi Kubo ◽  
Jong Jip Kim ◽  
Yong Hak Huh
Keyword(s):  
Stainless Steel ◽  
Crack Growth ◽  
Creep Crack Growth ◽  
Growth Behavior ◽  
Fracture Mechanisms ◽  
Crack Growth Behavior ◽  
316 Stainless Steel ◽  
Creep Crack

scholarly journals Creep crack growth behavior of P91 steel weldments

2019 ◽  
Vol 23 (2 Part B) ◽  
pp. 1203-1209 ◽  
Author(s):  
Mohamed Swei ◽  
Aleksandar Sedmak ◽  
Blagoj Petrovski ◽  
Zorana Golubovic ◽  
Simon Sedmak ◽  
...  
Keyword(s):  
Crack Growth ◽  
Creep Crack Growth ◽  
Growth Behavior ◽  
Crack Growth Behavior ◽  
P91 Steel ◽  
Creep Crack
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