ISSN:
1433-075X
Keywords:
Key words Steel
;
Iron alloys
;
Hydrogen
;
Second phase
;
Segregation
;
Grain size
;
Microestructure
;
Modelling
;
Interfacial energy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The trapping of hydrogen by various interfaces in iron and steels has been studied. The hydrogen content of pure iron specimens was found to depend more on hydrogen than those of low angle, and thus specimens with low angle grain boundaries were less susceptible to hydrogen damage. Inclusions and thermo-mechanical treatments were also significant in determining the hydrogen pick-up in iron. A critical volume fraction of inclusions was detected, below which no hydrogen- induced cracking occurred. Ferrite/pearlite and pearlite/pearlite colony interfaces in steel were found to trap hydrogen, whereas the ferrite/comentite interface within the pearlitic colonies had little effect on the hydrogen occlusivity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100190000043
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