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Initiation of hydrogen induced cracks at secondary phase particles
- Source :
- FRATTURA ED INTEGRITA STRUTTURALE, Frattura ed Integrità Strutturale; Vol. 14 No. 52 (2020): April 2020; 113-127, Frattura ed Integrità Strutturale; V. 14 N. 52 (2020): April 2020; 113-127, Frattura ed Integrità Strutturale, Vol 14, Iss 52, Pp 113-127 (2020), Frattura ed Integrità Strutturale, Vol 14, Iss 52 (2020)
- Publication Year :
- 2020
-
Abstract
- The goal of this work is to propose a general mechanism for hydrogen induced crack initiation in steels based on a microstructural study of multiple steel grades. Four types of steels with strongly varying microstructures are studied for this purpose, i.e. ultra low carbon (ULC) steel, TRIP (transformation induced plasticity) steel, Fe-C-Ti generic alloy, and pressure vessel steel. A strong dependency of the initiation of hydrogen induced cracks on the microstructural features in the materials is observed. By use of SEM-EBSD characterization, initiation is found to always occur at the hard secondary phase particles in the materials.
- Subjects :
- secondary phase
Materials science
Technology and Engineering
Hydrogen
Scanning electron microscope
lcsh:Mechanical engineering and machinery
Alloy
lcsh:TA630-695
chemistry.chemical_element
engineering.material
Plasticity
SUSCEPTIBILITY
SCANNING-ELECTRON-MICROSCOPY
INDUCED BLISTER CRACKING
Hydrogen induced cracking
Blisters
lcsh:TJ1-1570
Composite material
Embrittlement
particles
hydrogen induced cracking
Mechanical Engineering
TRAPPING EFFICIENCY
STEEL
IRON
lcsh:Structural engineering (General)
Microstructure
Strength of materials
Pressure vessel
INCLUSIONS
Secondary phase
chemistry
EMBRITTLEMENT
Mechanics of Materials
engineering
THERMAL-DESORPTION SPECTROSCOPY
MICROSTRUCTURE
Scanning electron microscopy
scanning electron microscopy
Subjects
Details
- Language :
- English
- ISSN :
- 19718993
- Database :
- OpenAIRE
- Journal :
- FRATTURA ED INTEGRITA STRUTTURALE, Frattura ed Integrità Strutturale; Vol. 14 No. 52 (2020): April 2020; 113-127, Frattura ed Integrità Strutturale; V. 14 N. 52 (2020): April 2020; 113-127, Frattura ed Integrità Strutturale, Vol 14, Iss 52, Pp 113-127 (2020), Frattura ed Integrità Strutturale, Vol 14, Iss 52 (2020)
- Accession number :
- edsair.doi.dedup.....3239fc4fb424e840e6c135e943e3aa09