Effects of solidification structure on tear resistance of Al–7% Si–0.4% Mg cast alloys
The tear resistance behaviour of Al–7% Si–0.4% Mg cast alloys was examined using Kahn-type tear test specimens. Tests were performed for two permanent mould casts with an ordinary dendrite structure and a semi-liquid die cast with a globular cell and fine grain structure. The microstructure of the t...
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HAN, S.-W. [verfasserIn] KIM, S.-W. [verfasserIn] KUMAI, S. [verfasserIn] |
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PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK.: Blackwell Science Ltd ; 2004 |
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2004 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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In: Fatigue & fracture of engineering materials & structures - Oxford [u.a.] : Wiley-Blackwell, 1979, 27(2004), 1, Seite 0 |
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volume:27 ; year:2004 ; number:1 ; pages:0 |
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| DOI / URN: |
10.1111/j.1460-2695.2004.00712.x |
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| 520 | |a The tear resistance behaviour of Al–7% Si–0.4% Mg cast alloys was examined using Kahn-type tear test specimens. Tests were performed for two permanent mould casts with an ordinary dendrite structure and a semi-liquid die cast with a globular cell and fine grain structure. The microstructure of the two permanent mould casts was controlled by the cooling rates and the addition of Ti elements. Tear resistance was evaluated by the ‘pop-in’ stress, the energies required for crack initiation, UEi and the crack propagation, UEp. Special attention was paid to an effective microstructural parameter for tear resistance improvement. Pop-in, indicating sudden crack extension and arrest, was observed in all specimens. Homogeneous deformation occurs near the notch tip of the semi-liquid die cast, characterized by a refined grain structure. Refinement of the grain size is more effective than that of the dendrite cell size or eutectic Si particle size to increase the energy for crack initiation. Unit propagation energy, UEp, can be converted into a critical stress intensity factor, Kc, which in the semi-liquid die cast was improved due to an increased amount of slant or shear fracture surface. | ||
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10.1111/j.1460-2695.2004.00712.x doi (DE-627)NLEJ242936598 DE-627 ger DE-627 rakwb HAN, S.-W. verfasserin aut Effects of solidification structure on tear resistance of Al–7% Si–0.4% Mg cast alloys PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK. Blackwell Science Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The tear resistance behaviour of Al–7% Si–0.4% Mg cast alloys was examined using Kahn-type tear test specimens. Tests were performed for two permanent mould casts with an ordinary dendrite structure and a semi-liquid die cast with a globular cell and fine grain structure. The microstructure of the two permanent mould casts was controlled by the cooling rates and the addition of Ti elements. Tear resistance was evaluated by the ‘pop-in’ stress, the energies required for crack initiation, UEi and the crack propagation, UEp. Special attention was paid to an effective microstructural parameter for tear resistance improvement. Pop-in, indicating sudden crack extension and arrest, was observed in all specimens. Homogeneous deformation occurs near the notch tip of the semi-liquid die cast, characterized by a refined grain structure. Refinement of the grain size is more effective than that of the dendrite cell size or eutectic Si particle size to increase the energy for crack initiation. Unit propagation energy, UEp, can be converted into a critical stress intensity factor, Kc, which in the semi-liquid die cast was improved due to an increased amount of slant or shear fracture surface. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| Al–Si–Mg cast alloys KIM, S.-W. verfasserin aut KUMAI, S. verfasserin aut In Fatigue & fracture of engineering materials & structures Oxford [u.a.] : Wiley-Blackwell, 1979 27(2004), 1, Seite 0 Online-Ressource (DE-627)NLEJ243926898 (DE-600)2014746-6 1460-2695 nnns volume:27 year:2004 number:1 pages:0 http://dx.doi.org/10.1111/j.1460-2695.2004.00712.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 27 2004 1 0 |
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10.1111/j.1460-2695.2004.00712.x doi (DE-627)NLEJ242936598 DE-627 ger DE-627 rakwb HAN, S.-W. verfasserin aut Effects of solidification structure on tear resistance of Al–7% Si–0.4% Mg cast alloys PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK. Blackwell Science Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The tear resistance behaviour of Al–7% Si–0.4% Mg cast alloys was examined using Kahn-type tear test specimens. Tests were performed for two permanent mould casts with an ordinary dendrite structure and a semi-liquid die cast with a globular cell and fine grain structure. The microstructure of the two permanent mould casts was controlled by the cooling rates and the addition of Ti elements. Tear resistance was evaluated by the ‘pop-in’ stress, the energies required for crack initiation, UEi and the crack propagation, UEp. Special attention was paid to an effective microstructural parameter for tear resistance improvement. Pop-in, indicating sudden crack extension and arrest, was observed in all specimens. Homogeneous deformation occurs near the notch tip of the semi-liquid die cast, characterized by a refined grain structure. Refinement of the grain size is more effective than that of the dendrite cell size or eutectic Si particle size to increase the energy for crack initiation. Unit propagation energy, UEp, can be converted into a critical stress intensity factor, Kc, which in the semi-liquid die cast was improved due to an increased amount of slant or shear fracture surface. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| Al–Si–Mg cast alloys KIM, S.-W. verfasserin aut KUMAI, S. verfasserin aut In Fatigue & fracture of engineering materials & structures Oxford [u.a.] : Wiley-Blackwell, 1979 27(2004), 1, Seite 0 Online-Ressource (DE-627)NLEJ243926898 (DE-600)2014746-6 1460-2695 nnns volume:27 year:2004 number:1 pages:0 http://dx.doi.org/10.1111/j.1460-2695.2004.00712.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 27 2004 1 0 |
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10.1111/j.1460-2695.2004.00712.x doi (DE-627)NLEJ242936598 DE-627 ger DE-627 rakwb HAN, S.-W. verfasserin aut Effects of solidification structure on tear resistance of Al–7% Si–0.4% Mg cast alloys PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK. Blackwell Science Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The tear resistance behaviour of Al–7% Si–0.4% Mg cast alloys was examined using Kahn-type tear test specimens. Tests were performed for two permanent mould casts with an ordinary dendrite structure and a semi-liquid die cast with a globular cell and fine grain structure. The microstructure of the two permanent mould casts was controlled by the cooling rates and the addition of Ti elements. Tear resistance was evaluated by the ‘pop-in’ stress, the energies required for crack initiation, UEi and the crack propagation, UEp. Special attention was paid to an effective microstructural parameter for tear resistance improvement. Pop-in, indicating sudden crack extension and arrest, was observed in all specimens. Homogeneous deformation occurs near the notch tip of the semi-liquid die cast, characterized by a refined grain structure. Refinement of the grain size is more effective than that of the dendrite cell size or eutectic Si particle size to increase the energy for crack initiation. Unit propagation energy, UEp, can be converted into a critical stress intensity factor, Kc, which in the semi-liquid die cast was improved due to an increased amount of slant or shear fracture surface. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| Al–Si–Mg cast alloys KIM, S.-W. verfasserin aut KUMAI, S. verfasserin aut In Fatigue & fracture of engineering materials & structures Oxford [u.a.] : Wiley-Blackwell, 1979 27(2004), 1, Seite 0 Online-Ressource (DE-627)NLEJ243926898 (DE-600)2014746-6 1460-2695 nnns volume:27 year:2004 number:1 pages:0 http://dx.doi.org/10.1111/j.1460-2695.2004.00712.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 27 2004 1 0 |
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10.1111/j.1460-2695.2004.00712.x doi (DE-627)NLEJ242936598 DE-627 ger DE-627 rakwb HAN, S.-W. verfasserin aut Effects of solidification structure on tear resistance of Al–7% Si–0.4% Mg cast alloys PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK. Blackwell Science Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The tear resistance behaviour of Al–7% Si–0.4% Mg cast alloys was examined using Kahn-type tear test specimens. Tests were performed for two permanent mould casts with an ordinary dendrite structure and a semi-liquid die cast with a globular cell and fine grain structure. The microstructure of the two permanent mould casts was controlled by the cooling rates and the addition of Ti elements. Tear resistance was evaluated by the ‘pop-in’ stress, the energies required for crack initiation, UEi and the crack propagation, UEp. Special attention was paid to an effective microstructural parameter for tear resistance improvement. Pop-in, indicating sudden crack extension and arrest, was observed in all specimens. Homogeneous deformation occurs near the notch tip of the semi-liquid die cast, characterized by a refined grain structure. Refinement of the grain size is more effective than that of the dendrite cell size or eutectic Si particle size to increase the energy for crack initiation. Unit propagation energy, UEp, can be converted into a critical stress intensity factor, Kc, which in the semi-liquid die cast was improved due to an increased amount of slant or shear fracture surface. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| Al–Si–Mg cast alloys KIM, S.-W. verfasserin aut KUMAI, S. verfasserin aut In Fatigue & fracture of engineering materials & structures Oxford [u.a.] : Wiley-Blackwell, 1979 27(2004), 1, Seite 0 Online-Ressource (DE-627)NLEJ243926898 (DE-600)2014746-6 1460-2695 nnns volume:27 year:2004 number:1 pages:0 http://dx.doi.org/10.1111/j.1460-2695.2004.00712.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 27 2004 1 0 |
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10.1111/j.1460-2695.2004.00712.x doi (DE-627)NLEJ242936598 DE-627 ger DE-627 rakwb HAN, S.-W. verfasserin aut Effects of solidification structure on tear resistance of Al–7% Si–0.4% Mg cast alloys PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK. Blackwell Science Ltd 2004 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The tear resistance behaviour of Al–7% Si–0.4% Mg cast alloys was examined using Kahn-type tear test specimens. Tests were performed for two permanent mould casts with an ordinary dendrite structure and a semi-liquid die cast with a globular cell and fine grain structure. The microstructure of the two permanent mould casts was controlled by the cooling rates and the addition of Ti elements. Tear resistance was evaluated by the ‘pop-in’ stress, the energies required for crack initiation, UEi and the crack propagation, UEp. Special attention was paid to an effective microstructural parameter for tear resistance improvement. Pop-in, indicating sudden crack extension and arrest, was observed in all specimens. Homogeneous deformation occurs near the notch tip of the semi-liquid die cast, characterized by a refined grain structure. Refinement of the grain size is more effective than that of the dendrite cell size or eutectic Si particle size to increase the energy for crack initiation. Unit propagation energy, UEp, can be converted into a critical stress intensity factor, Kc, which in the semi-liquid die cast was improved due to an increased amount of slant or shear fracture surface. 2004 Blackwell Publishing Journal Backfiles 1879-2005 |2004|||||||||| Al–Si–Mg cast alloys KIM, S.-W. verfasserin aut KUMAI, S. verfasserin aut In Fatigue & fracture of engineering materials & structures Oxford [u.a.] : Wiley-Blackwell, 1979 27(2004), 1, Seite 0 Online-Ressource (DE-627)NLEJ243926898 (DE-600)2014746-6 1460-2695 nnns volume:27 year:2004 number:1 pages:0 http://dx.doi.org/10.1111/j.1460-2695.2004.00712.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 27 2004 1 0 |
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effects of solidification structure on tear resistance of al–7% si–0.4% mg cast alloys |
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Effects of solidification structure on tear resistance of Al–7% Si–0.4% Mg cast alloys |
| abstract |
The tear resistance behaviour of Al–7% Si–0.4% Mg cast alloys was examined using Kahn-type tear test specimens. Tests were performed for two permanent mould casts with an ordinary dendrite structure and a semi-liquid die cast with a globular cell and fine grain structure. The microstructure of the two permanent mould casts was controlled by the cooling rates and the addition of Ti elements. Tear resistance was evaluated by the ‘pop-in’ stress, the energies required for crack initiation, UEi and the crack propagation, UEp. Special attention was paid to an effective microstructural parameter for tear resistance improvement. Pop-in, indicating sudden crack extension and arrest, was observed in all specimens. Homogeneous deformation occurs near the notch tip of the semi-liquid die cast, characterized by a refined grain structure. Refinement of the grain size is more effective than that of the dendrite cell size or eutectic Si particle size to increase the energy for crack initiation. Unit propagation energy, UEp, can be converted into a critical stress intensity factor, Kc, which in the semi-liquid die cast was improved due to an increased amount of slant or shear fracture surface. |
| abstractGer |
The tear resistance behaviour of Al–7% Si–0.4% Mg cast alloys was examined using Kahn-type tear test specimens. Tests were performed for two permanent mould casts with an ordinary dendrite structure and a semi-liquid die cast with a globular cell and fine grain structure. The microstructure of the two permanent mould casts was controlled by the cooling rates and the addition of Ti elements. Tear resistance was evaluated by the ‘pop-in’ stress, the energies required for crack initiation, UEi and the crack propagation, UEp. Special attention was paid to an effective microstructural parameter for tear resistance improvement. Pop-in, indicating sudden crack extension and arrest, was observed in all specimens. Homogeneous deformation occurs near the notch tip of the semi-liquid die cast, characterized by a refined grain structure. Refinement of the grain size is more effective than that of the dendrite cell size or eutectic Si particle size to increase the energy for crack initiation. Unit propagation energy, UEp, can be converted into a critical stress intensity factor, Kc, which in the semi-liquid die cast was improved due to an increased amount of slant or shear fracture surface. |
| abstract_unstemmed |
The tear resistance behaviour of Al–7% Si–0.4% Mg cast alloys was examined using Kahn-type tear test specimens. Tests were performed for two permanent mould casts with an ordinary dendrite structure and a semi-liquid die cast with a globular cell and fine grain structure. The microstructure of the two permanent mould casts was controlled by the cooling rates and the addition of Ti elements. Tear resistance was evaluated by the ‘pop-in’ stress, the energies required for crack initiation, UEi and the crack propagation, UEp. Special attention was paid to an effective microstructural parameter for tear resistance improvement. Pop-in, indicating sudden crack extension and arrest, was observed in all specimens. Homogeneous deformation occurs near the notch tip of the semi-liquid die cast, characterized by a refined grain structure. Refinement of the grain size is more effective than that of the dendrite cell size or eutectic Si particle size to increase the energy for crack initiation. Unit propagation energy, UEp, can be converted into a critical stress intensity factor, Kc, which in the semi-liquid die cast was improved due to an increased amount of slant or shear fracture surface. |
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Effects of solidification structure on tear resistance of Al–7% Si–0.4% Mg cast alloys |
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