Temperature rise up to melting under quasi-static loading conditions induced by adiabatic shear banding
Adiabatic shear banding propagating at very large speed was observed during the unstable fracture of TRIP-TWIP β -metastable Ti-12 wt% Mo alloy under quasi-static loading. The fusible coating method was used with five different coatings to assess the predicted temperature variations. Two one-dimensi...
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| Autores principales: | , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Elsevier
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/687619f91d9344db9d98bd4c23142dfd |
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| Sumario: | Adiabatic shear banding propagating at very large speed was observed during the unstable fracture of TRIP-TWIP β -metastable Ti-12 wt% Mo alloy under quasi-static loading. The fusible coating method was used with five different coatings to assess the predicted temperature variations. Two one-dimensional models are compared based on parameters measured on fractured samples of Ti-12 wt% Mo alloy. The importance of the thickness of the shear band as well as of the shearing time are highlighted. A new two-dimensional model is then developed to represent the nucleation and propagation of the shear band. Finally, an analytical one-dimensional model is proposed to estimate the temperature rise occurring during adiabatic shear banding of other metallic alloys from easily accessible physical and mechanical properties. |
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