|
|
|
| ON HYDROGEN INDUCED CRACKING(HIC) AND HYDROGEN STRESS CRACKING(HSC) |
| Peng Zuming (The Central Institute of Iron and Steel Research; The Ministry of Metallurgical Industry) |
|
|
|
|
Abstract A preliminary approach to the effect of H-induced crack, as an environment-induced defect, on the processes of material failure has been made. Experimental results show that, as a primary approximate, the H-induced crack may be considered as a set of face defects paralleling to the rolled plane, and it has only a little effect on the routine strength indices, but enhances the susceptibility to brittle fracture of materials. HIC and HSC are two kinds of cracking basically independent of each other. The decisive factor in the environmental fracture is the susceptibility to HSC of materials. The environmental fracture process for materials having both HSC and HIC susceptibility may be expressed by the schematic model diagram as suggested in this paper. This diagram can explain a series of experimental phenomena observed during the environmental fracture of structural steels with middle and low strength. In general, the equipment or structures made of HSC resistant materials may operate safely though they may have induced cracks.
|
|
Received: 25 April 1982
|
[1] E. M. Moore et al. Materials Protection, 15, 6, 17(1976)
[2] 寺崎富久长.日本金属学会会报,16,11． 789(1977)
[3] R. Popperling et al, Werkstoff und Korrosion, 31, 1, 15(1980)
[4] 小若正伦等,住友金属,27,12(1975)
[5] P. W. Bridgman, Studies in Large Plastic Flow and Fracture, (1964)
[6] #12 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
