scholarly journals Creep Crack Growth Test Method and Creep Crack Growth Properties for TiAl Intermetallic Compound.

2000 ◽  
Vol 49 (1) ◽  
pp. 80-85 ◽  
Author(s):  
Masaaki TABUCHI ◽  
Toshimitu YOKOBORI ◽  
Akio FUJI ◽  
Kiyoshi KUBO ◽  
Koichi YAGI ◽  
...  
Keyword(s):  
Intermetallic Compound ◽  
Crack Growth ◽  
Creep Crack Growth ◽  
Test Method ◽  
Creep Crack ◽  
Growth Test ◽  
Tial Intermetallic Compound ◽  
Growth Properties

Estimation of Creep Crack Growth Properties Using Circumferential Notched Round Bar Specimen for 12CrWCoB Rotor Steel

2005 ◽  
Vol 297-300 ◽  
pp. 397-402
Author(s):  
Je Chang Ha ◽  
Joon Hyun Lee ◽  
Masaaki Tabuchi ◽  
A.Toshimitsu Yokobori Jr.
Keyword(s):  
Crack Growth ◽  
Axial Stress ◽  
Creep Crack Growth ◽  
Turbine Rotor ◽  
Rotor Steel ◽  
Creep Ductility ◽  
Crack Growth Behaviour ◽  
Creep Crack ◽  
Round Bar ◽  
Growth Properties

Most heat resisting materials in structural components are used under multi-axial stress conditions and under such conditions ductile materials often exhibit brittle manner and low creep ductility at elevated temperature. Creep crack initiation and growth properties are also affected by multi-axial stress and it is important to evaluate these effects when laboratory data are applied to structural components. Creep crack growth tests using circumferential notched round bar specimens are a simple method to investigate multi-axial stress effects without using complicated test facilities. Creep crack growth tests have been performed using a 12CrWCoB turbine rotor steel. In order to investigate the effects of multi-axial stress on creep crack growth properties, the tests were conducted for various notch depths at 650°C. The circumferential notched round bar specimen showed brittle crack growth behaviour under multi-axial stress conditions. Creep crack growth rate was characterized in terms of the C* parameter. A 12CrWCoB turbine rotor steel has been tested using circumferential notched round bar specimens with different multi-axiality. Circumferential notched round bar specimens show increased brittle creep crack growth behaviour due to the multi-axial stress condition. Creep crack growth properties could be predicted by allowing for the decrease of creep ductility under multi-axial conditions.

Experimental and numerical study on the relationship between creep crack growth properties and fracture mechanisms

2004 ◽  
Vol 35 (6) ◽  
Author(s):  
Masaaki Tabuchi ◽  
Jechang Ha ◽  
Hiromichi Hongo ◽  
Takashi Watanabe ◽  
Toshimitsu Yokobori
Keyword(s):  
Crack Growth ◽  
Numerical Study ◽  
Creep Crack Growth ◽  
Fracture Mechanisms ◽  
Creep Crack ◽  
Growth Properties ◽  
The Relationship

An Assessment of Techniques of Analysis of Creep Crack-Growth Test-Record by J*-Integral

1981 ◽  
pp. 611-612
Author(s):  
G. G. Musicco ◽  
G. Bernasconi ◽  
G. Piatti
Keyword(s):  
Crack Growth ◽  
Creep Crack Growth ◽  
J Integral ◽  
Creep Crack ◽  
Growth Test ◽  
Test Record

Estimation of Creep Crack Growth Properties Using Circumferential Notched Round Bar Specimen for 12CrWCoB Rotor Steel

2005 ◽  
pp. 397-402
Author(s):  
Je Chang Ha ◽  
Joon Hyun Lee ◽  
Tabuchi Masaaki ◽  
A.Toshimitsu Yokobori
Keyword(s):  
Crack Growth ◽  
Creep Crack Growth ◽  
Rotor Steel ◽  
Creep Crack ◽  
Round Bar ◽  
Growth Properties

Creep crack growth properties for 12CrWCoB rotor steel using circular notched specimens

2004 ◽  
Vol 81 (5) ◽  
pp. 401-407 ◽  
Author(s):  
Jechang Ha ◽  
Masaaki Tabuchi ◽  
Hiromichi Hongo ◽  
A. Toshimitsu Yokobori ◽  
Akio Fuji
Keyword(s):  
Crack Growth ◽  
Creep Crack Growth ◽  
Rotor Steel ◽  
Creep Crack ◽  
Notched Specimens ◽  
Growth Properties

GS12 Characterization of side-groove geometry of C(T) specimen used for creep crack growth test based on micro damage mechanics

2014 ◽  
Vol 2014 (0) ◽  
pp. _GS12-1_-_GS12-3_
Author(s):  
Takahiro FUKUDA ◽  
Haruhisa SHIGEYAMA ◽  
A. Toshimitsu YOKOBORI Jr. ◽  
Ryuji SGIURA
Keyword(s):  
Crack Growth ◽  
Damage Mechanics ◽  
Creep Crack Growth ◽  
Creep Crack ◽  
Growth Test
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