INCREASING THE FRACTURE TOUGHNESS OF EROSION-RESISTANT LAYERED MATERIALS PRODUCED BY EXPLOSION WELDING
It is proposed to use the J-integral criterion that takes into account the plastic deformation at the crack tip for layered materials based on high-strength steel 38HN3MFA alloys and erosion resistant cobalt alloy ЭП 131, molybdenum alloy MT, which are destroyed according to the laws of elastic-plas...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Belarusian National Technical University
2013-05-01
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| Series: | Литьë и металлургия |
| Online Access: | https://lim.bntu.by/jour/article/view/244 |
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| Summary: | It is proposed to use the J-integral criterion that takes into account the plastic deformation at the crack tip for layered materials based on high-strength steel 38HN3MFA alloys and erosion resistant cobalt alloy ЭП 131, molybdenum alloy MT, which are destroyed according to the laws of elastic-plastic mechanics. The experimental technique for determining and numerical calculation of energetic J-integral has been described. Numerical modeling of the destruction process has shown good convergence with experimental researches. There was shown that the high-velocity deformation at explosive processing of steel forms structure with high parameters of strain crack toughness and significant increase of yield strength of a material. |
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| ISSN: | 1683-6065 2414-0406 |