Initiation of hydrogen induced cracks at secondary phase particles
| Autor: | Tom Depover, Aurélie Laureys, Kim Verbeken, Lisa Claeys, Margot Pinson, tim Deseranno |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
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 |
| Zdroj: | 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) |
| ISSN: | 1971-8993 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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