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MODELING MACROSEGREGATION DURING VAR OF TI-10V-2FE-3AL ALLOY

  • Kartonierter Einband
  • 292 Seiten
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Vacuum arc remelting (VAR) is a secondary melting process for production of metal ingots with elevated chemical and mechanical hom... Weiterlesen
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Beschreibung

Vacuum arc remelting (VAR) is a secondary melting process for production of metal ingots with elevated chemical and mechanical homogeneity for highly demanding applications. One of the most important problems of Vacuum Arc Remelting (VAR) is the lack of chemical homogeneity in the produced ingots. Past numerical studies of VAR have demonstrated that the characteristics of the mushy zone, the fluid flow and their interaction are the key factors defining the severity and the character of macrosegregation in the produced ingots. Thus, a new numerical model of the complete VAR process, capable of representing two distinctive morphologies of mushy zone: rigid columnar structure and slurry of free floating equiaxed grains is introduced. The presented model accompanied by a simple criterion for the columnar- to-equiaxed transition allows the capture of segregation defects induced by motion and settling of equiaxed grains.

Autorentext

Dmytro V. Zagrebelnyy was born in Kiev, Ukraine, in 1978. He received Bachelor in Metallurgy (1999) and Master of Science degrees in Special Metallurgy (2001) form NTTU KPI, Kiev, Ukraine. May 2007 he was awarded degree Doctor of Philosophy (Ph.D) upon successful completion of work on modeling of Vacuum Arc Remelting of Ti-alloys.

Produktinformationen

Titel: MODELING MACROSEGREGATION DURING VAR OF TI-10V-2FE-3AL ALLOY
Untertitel: Macroscopic Approach
Autor:
EAN: 9783836459488
ISBN: 978-3-8364-5948-8
Format: Kartonierter Einband
Herausgeber: VDM Verlag
Genre: Sonstiges
Anzahl Seiten: 292
Gewicht: 451g
Größe: H220mm x B150mm x T18mm
Veröffentlichung: 01.12.2008
Jahr: 2008