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The influence of the DC current on directional crystallization process of peritectic alloys simulation

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

Abstract

A Transparent and peritectic alloys of AMPD-4.1%SCN was selected to investigate the process of crystallization and the influence of the DC current on crystal growth. The Charge Coupled Device (CCD) in microscope and a temperature instrument with communication to computer were snap the real time profile of crystals and record the temperature date respectively. Experimental results show that under the action of electric current the primary alpha particles of directional crystallization AMPD-4.1%SCN of peritectic alloys simulation towards the positive direction gradually and make the composition of the liquid phase in front of solidification interface close to the peritectic point and promote the peritectic reaction. And the influence of DC current on dendrite refining is obviously, with the increase of current density, the dendritic spacing exponential decline at a time. In addition, the direct current (DC) can reduce the driving force of solidification need and reduce the undercooling degree of solidification need, the direct impact is the dendrite growth rate increases along linearly with the increase of current.

Original languageEnglish
Title of host publication18th International Conference on Electronic Packaging Technology, ICEPT 2017
EditorsChenxi Wang, Yanhong Tian, Tianchun Ye
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages544-547
Number of pages4
ISBN (Electronic)9781538629727
DOIs
StatePublished - 19 Sep 2017
Event18th International Conference on Electronic Packaging Technology, ICEPT 2017 - Harbin, China
Duration: 16 Aug 201719 Aug 2017

Publication series

Name18th International Conference on Electronic Packaging Technology, ICEPT 2017

Conference

Conference18th International Conference on Electronic Packaging Technology, ICEPT 2017
Country/TerritoryChina
CityHarbin
Period16/08/1719/08/17

Keywords

  • AMPD-4.1%SCN
  • DC current
  • physical modelling component
  • the peritectic alloys

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