Effect of a strong magnetic field on dendritic growth of Ti-Ni alloy

Hui Chang, Chunli Huang, Bin Tang, Rui Hu, Jinshan Li, Hong Zhong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A phase field model has been developed to simulate the dendritic growth of Ti-Ni alloysubjected to a strong magnetic field. The influence of a strong magnetic field on the microstructuremorphology and its evolution was successfully investigated by the model. The effect of themagnetic field intensity on the dendritic evolution has been further discussed. The simulating resultsrevealed that with greater magnetic field intensity, the primary dendritic arms and the side brancheswere easier to coarsen. Besides, the dendritic tip growth rate increased with increasing magneticfield intensity, while the curvature radius had an opposite tendency. The microstructure evolutionunder a strong magnetic field was also studied combined with solidification thermodynamicstheory. The results indicate that, the temperature of equilibrium solidification of Ti-Ni alloychanges with the presence of a strong magnetic field, and the morphology of dendritic grains will beaffected eventually.

Original languageEnglish
Title of host publicationHigh Performance Structure Materials
EditorsYafang Han, Junpin Lin, Chengbo Xiao, Xiaoqin Zeng
PublisherTrans Tech Publications Ltd
Pages810-817
Number of pages8
ISBN (Print)9783037856086
DOIs
StatePublished - 2013
Externally publishedYes
EventChinese Materials Congress 2012, CMC 2012 - Taiyuan, China
Duration: 13 Jul 201218 Jul 2012

Publication series

NameMaterials Science Forum
Volume747-748
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceChinese Materials Congress 2012, CMC 2012
Country/TerritoryChina
CityTaiyuan
Period13/07/1218/07/12

Keywords

  • Dendritic growth
  • Magnetic field
  • Phase field
  • Solidification
  • Titanium alloy

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