The effect of welding mechanical heterogeneity on fracture toughness feature of base metal
In: International journal of pressure vessels and piping, Jg. 72 (1997), Heft 3, S. 199-202
academicJournal
- print, 8 ref
Zugriff:
In the present paper, the effects of the mechanical heterogeneity of a weldment on the fracture toughness features of the base metal near the weld metal are studied experimentally by measuring the Crack Opening Displacement (COD) of the three point bend specimens with crack tip locating in the different distance from weld metal zone. The results show that the initiation toughness, the crack growth resistance and the tearing modulus of the base metal near the weld metal zone are greatly affected by the mechanical heterogeneity of the weldment. The nearer the crack is located to the weld metal zone, the stronger is the effect of weld metal properties. Moreover, the Strength Zone Width (SZW)c of the crack has a good linear relation with initiation toughness and can be used as a fracture toughness parameter showing the mechanical heterogeneity of weldment.
Titel: |
The effect of welding mechanical heterogeneity on fracture toughness feature of base metal
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Autor/in / Beteiligte Person: | ZHANG, J. X ; SHI, Y. W |
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Zeitschrift: | International journal of pressure vessels and piping, Jg. 72 (1997), Heft 3, S. 199-202 |
Veröffentlichung: | Oxford: Elsevier, 1997 |
Medientyp: | academicJournal |
Umfang: | print, 8 ref |
ISSN: | 0308-0161 (print) |
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