A Similarity Solution for the Directional Casting of Peritectic Alloys in the Presence of Shrinkage-Induced Flow

- Journal title : Transactions of the Korean Society of Mechanical Engineers B
- Volume 25, Issue 4, 2001, pp.485-495
- Publisher : The Korean Society of Mechanical Engineers
- DOI : 10.22634/KSME-B.2001.25.4.485

Title & Authors

A Similarity Solution for the Directional Casting of Peritectic Alloys in the Presence of Shrinkage-Induced Flow

Yu, Ho-Seon; Jeong, Jae-Dong; Lee, Jun-Sik;

Yu, Ho-Seon; Jeong, Jae-Dong; Lee, Jun-Sik;

Abstract

This paper presents a similarity solution for the directional casting of binary peritectic alloys in the presence of shrinkage-induced flow. The present model retains essential ingredients of alloy solidification, such as temperature-solute coupling, macrosegregation, solid-liquid property differences, and finite back diffusion in the primary phase. An algorithm for simultaneously determining the peritectic and liquidus positions is newly developed, which proves to be more efficient and stable than the existing scheme. Sample calculations are performed for both hypo- and hyper-peritectic compositions. The results show that the present analysis is capable of properly resolving the solidification characteristics of peritectic alloys so that it can be used for validating numerical models as a test solution.

Keywords

Binary Peritectic Alloy;Directional Casting;Similarity Solution;Shrinkage-Induced Flow;

Language

Korean

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