scholarly journals High Temperature Strength. Low-Cycle Fatigue Crack Detection Using A.C. Potential Drop Method for CoCrAlY Coated 738LC Ni Base Superalloy.

1997 ◽  
Vol 46 (1) ◽  
pp. 58-64 ◽  
Author(s):  
Keisuke TAKAKI ◽  
Masao SAKANE ◽  
Masateru OHNAMI ◽  
Nagatoshi OKABE ◽  
Kazunari FUJIYAMA
Keyword(s):  
Fatigue Crack ◽  
High Temperature ◽  
Crack Detection ◽  
Low Cycle Fatigue ◽  
Potential Drop ◽  
High Temperature Strength ◽  
Cycle Fatigue ◽  
Drop Method ◽  
Fatigue Crack Detection ◽  
Base Superalloy

Research on High Temperature Low Cycle Fatigue Crack Propagation of 2.25Cr-lMo Steel under Complex Stress State

2011 ◽  
Vol 361-363 ◽  
pp. 1422-1425
Author(s):  
Wen Xiao Zhang ◽  
Guo Dong Gao ◽  
Guang Yu Mu
Keyword(s):  
Fatigue Crack ◽  
High Temperature ◽  
Stress State ◽  
Crack Propagation ◽  
Low Cycle Fatigue ◽  
Complex Stress ◽  
Complex Stress State ◽  
J Integral ◽  
Cycle Fatigue ◽  
Propagation Law

The crack propagation law of 2.25Cr-1Mo steel with notched cylinder was researched under high temperature low cycle fatigue. The crack propagation life was viewed by fatigue experiment and the equivalent stress-strain on the crack tip was calculated by the ANSYS. The equivalent J-integral range which was computed by equivalent elastic and plastic strain ranges were employed to denote the fatigue crack propagation rate. The results showed that crack propagation law of this material under complex stress state can be characterized by equivalent J-integral ranges and the relation between da/dN and ΔJf is not influenced by the type of notch and the load strain range.

Stress-induced formation of TCP phases during high temperature low cycle fatigue loading of the single-crystal Ni-base superalloy ERBO/1

2019 ◽  
Vol 168 ◽  
pp. 343-352 ◽  
Author(s):  
Carla Meid ◽  
Mario Eggeler ◽  
Philipp Watermeyer ◽  
Aleksander Kostka ◽  
Thomas Hammerschmidt ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Low Cycle Fatigue ◽  
Fatigue Loading ◽  
Cycle Fatigue ◽  
Tcp Phases ◽  
Base Superalloy

High temperature creep and low cycle fatigue of a nickel-base superalloy

2010 ◽  
Vol 527 (9) ◽  
pp. 2379-2389 ◽  
Author(s):  
Jinjiang Yu ◽  
Xiaofeng Sun ◽  
Tao Jin ◽  
Nairen Zhao ◽  
Hengrong Guan ◽  
...  
Keyword(s):  
High Temperature ◽  
Low Cycle Fatigue ◽  
Nickel Base Superalloy ◽  
High Temperature Creep ◽  
Cycle Fatigue ◽  
Temperature Creep ◽  
Nickel Base ◽  
Base Superalloy

High-Temperature Low-Cycle Fatigue Behavior of 625 Nickel-Base Superalloy Welding Joint

2014 ◽  
Vol 618 ◽  
pp. 120-124
Author(s):  
Yuan Yuan Wang ◽  
Bao Sen Wang ◽  
Li Jia Chen
Keyword(s):  
High Temperature ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
Fatigue Cracks ◽  
Fatigue Properties ◽  
Nickel Base Superalloy ◽  
Cycle Fatigue ◽  
Welding Joint ◽  
Nickel Base ◽  
Base Superalloy

High temperature low cycle fatigue properties and fracture behavior of Inconel 625 nickel-base superalloy welding joint at 760oC were investigated under fully reversed total strain-controlled mode. The fatigue life and cyclic stress-strain data were analyzed to determine the individual strain fatigue parameters. It is noted that the welding joint exhibits the cyclic strain hardening and stability. The fatigue cracks initiate predominantly on the free surface of fatigue specimens and propagate in an intergranular mode or a mixed transgranular and intergranular mode.

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