• Treffer 9 von 65
Zurück zur Trefferliste

Non-Destructive Testing of Cast Magnesium Alloys by Computerized Tomography

  • Summary Beside several favourable properties, like high specific strength and damping capacity, most magnesium alloys also exhibit an excellent castability and are therefore usually fabricated by high pressure die casting. Due to the high casting speed, the melt flow is non-laminar and air can be entrapped during the casting process causing porosity when the melt solidifies. The volume fraction of porosity can be up to 4%. Porosity highly influences the mechanical properties, reducing significantly the values of elongation, tensile strength and especially fatigue strength [1-5]. Additionally, no heat treatment is possible to reach the optimum mechanical properties of the material. An alternative casting technology to reduce porosity is the Thixomolding process where the material is cast in the semi-solid state. Different methods of non-destructive testing are possible to detect and remove affected components to ensure using components with a low content of porosity. One alternative ofSummary Beside several favourable properties, like high specific strength and damping capacity, most magnesium alloys also exhibit an excellent castability and are therefore usually fabricated by high pressure die casting. Due to the high casting speed, the melt flow is non-laminar and air can be entrapped during the casting process causing porosity when the melt solidifies. The volume fraction of porosity can be up to 4%. Porosity highly influences the mechanical properties, reducing significantly the values of elongation, tensile strength and especially fatigue strength [1-5]. Additionally, no heat treatment is possible to reach the optimum mechanical properties of the material. An alternative casting technology to reduce porosity is the Thixomolding process where the material is cast in the semi-solid state. Different methods of non-destructive testing are possible to detect and remove affected components to ensure using components with a low content of porosity. One alternative of evaluating the porosity is the computerized tomography (CT). The CT enables a 3-dimensional view of the cast component.zeige mehrzeige weniger

Metadaten exportieren

Weitere Dienste

Teilen auf Twitter Suche bei Google Scholar Anzahl der Zugriffe auf dieses Dokument
Metadaten
Autor*innen:Bernhard Illerhaus, Jürgen Goebbels, N. Hort, C. Potzies, H. Frank
Persönliche Herausgeber*innen:K. U. Kainer
Dokumenttyp:Beitrag zu einem Sammelband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Magnesium : proceedings of the 6th International Conference Magnesium Alloys and Their Applications
Jahr der Erstveröffentlichung:2003
Verlag:Wiley-VCH
Verlagsort:Weinheim
Jahrgang/Band:6
Erste Seite:746
Letzte Seite:751
Veranstaltung:6th International Conference and Exhibition on Magnesium Alloys and Their Applications
Veranstaltungsort:Wolfsburg, Germany
Beginndatum der Veranstaltung:2003-11-18
Enddatum der Veranstaltung:2003-11-20
DOI:10.1002/3527603565.ch119
ISBN:3-527-30975-6
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein
Einverstanden
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.