Author: KA. Esaklul
Publisher:
ISBN:
Category : Closure
Languages : en
Pages : 18
Book Description
The presence of internal hydrogen through cathodic charging has substantial influence on the near-threshold fatigue behavior of an HSLA steel with an as-received yield strength of 365 MPa. The results of fatigue crack propagation tests in both as-received and heat-treated conditions indicate higher crack propagation rates and lower threshold stress intensities in the presence of internal hydrogen. These effects are dependent on strength, mean stress or R-ratio, and test temperature. The enhancement in the crack propagation process is more severe in the higher strength material and at higher mean stress. An unusual behavior was observed due to decreasing test temperature from 300 to 123 K in which higher thresholds and lower crack propagation rates at 233 and 173 K were obtained in the presence of internal hydrogen. These effects are a result of true intrinsic hydrogen enhanced fracture and deformation processes.
Internal Hydrogen Degradation of Fatigue Thresholds in HSLA Steel
Author: KA. Esaklul
Publisher:
ISBN:
Category : Closure
Languages : en
Pages : 18
Book Description
The presence of internal hydrogen through cathodic charging has substantial influence on the near-threshold fatigue behavior of an HSLA steel with an as-received yield strength of 365 MPa. The results of fatigue crack propagation tests in both as-received and heat-treated conditions indicate higher crack propagation rates and lower threshold stress intensities in the presence of internal hydrogen. These effects are dependent on strength, mean stress or R-ratio, and test temperature. The enhancement in the crack propagation process is more severe in the higher strength material and at higher mean stress. An unusual behavior was observed due to decreasing test temperature from 300 to 123 K in which higher thresholds and lower crack propagation rates at 233 and 173 K were obtained in the presence of internal hydrogen. These effects are a result of true intrinsic hydrogen enhanced fracture and deformation processes.
Publisher:
ISBN:
Category : Closure
Languages : en
Pages : 18
Book Description
The presence of internal hydrogen through cathodic charging has substantial influence on the near-threshold fatigue behavior of an HSLA steel with an as-received yield strength of 365 MPa. The results of fatigue crack propagation tests in both as-received and heat-treated conditions indicate higher crack propagation rates and lower threshold stress intensities in the presence of internal hydrogen. These effects are dependent on strength, mean stress or R-ratio, and test temperature. The enhancement in the crack propagation process is more severe in the higher strength material and at higher mean stress. An unusual behavior was observed due to decreasing test temperature from 300 to 123 K in which higher thresholds and lower crack propagation rates at 233 and 173 K were obtained in the presence of internal hydrogen. These effects are a result of true intrinsic hydrogen enhanced fracture and deformation processes.
The Effect of Internal Hydrogen on Near-threshold Fatigue Crack Propagation in Iron Base Systems
Author: Khlefa Alarbe Esaklul
Publisher:
ISBN:
Category :
Languages : en
Pages : 536
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 536
Book Description
Fracture mechanics : fifteenth symposium
Author: Melvin F. Kanninen
Publisher: ASTM International
ISBN: 9780803102255
Category :
Languages : en
Pages : 676
Book Description
Publisher: ASTM International
ISBN: 9780803102255
Category :
Languages : en
Pages : 676
Book Description
ERDA Energy Research Abstracts
Fracture Mechanics
Energy Research Abstracts
Fatigue Crack Growth Threshold Concepts
Author: David L. Davidson
Publisher: Society for Mining Metallurgy & Exploration
ISBN: 9780895204752
Category : Technology & Engineering
Languages : en
Pages : 584
Book Description
Publisher: Society for Mining Metallurgy & Exploration
ISBN: 9780895204752
Category : Technology & Engineering
Languages : en
Pages : 584
Book Description
Near-threshold Corrosion
Energy Research Abstracts
Effect of Microstructure and Internal Hydrogen on Fatigue Crack Propagation of Ultrahigh Strength Steels
Author: Cheruvu Narayana Sastry
Publisher:
ISBN:
Category : Steel
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Steel
Languages : en
Pages :
Book Description