Study on an explosion treated steel weld metal with prepared crack

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J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (03): 385-387.

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Study on an explosion treated steel weld metal with prepared crack

Xiaonan GUO, Xin LONG, Huaining CHEN, Liangshan CHEN, Guangjun GAI

School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China...

Received:2000-01-17 Revised:1900-01-01 Online:2001-05-28 Published:2009-10-10
Contact: Xiaonan GUO

Abstract

Abstract: A softening zone with recrystallized grain around the prepared crack tip in the shock waves treated C-Mn steel weld metal was observed. It is suggested that a dynamic recovery occurred around the prepared crack tip even at a low explosion pressure (5 GPa) because of the stress and strain concentration at the crack tip when shock waves pass through. This result supports the previous work on the improved mechanical properties of a shock treated welded joint with residual crack from the viewpoint of microstructure.

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Xiaonan GUO, Xin LONG, Huaining CHEN, Liangshan CHEN, Guangjun GAI. Study on an explosion treated steel weld metal with prepared crack[J]. J Mater Sci Technol, 2001, 17(03): 385-387.

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Study on an explosion treated steel weld metal with prepared crack

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