✦ LIBER ✦

Application of vibrational parameters to locate the solid/liquid interface during solidification and melting of metals

✍ Scribed by Wang Fengquan; Zhu Zhenghua; Chen Shiyu

Publisher: Springer
Year: 1993
Tongue: English
Weight: 376 KB
Volume: 28
Category: Article
ISSN: 0022-2461
DOI: 10.1007/bf00351256

No coin nor oath required. For personal study only.

✦ Synopsis

A method to locate the solid/liquid interface with vibrational parameters during solidification is proposed for the first time. The sufficient difference in resistance to shear stresses between liquid and solid phases of metals and alloys permits the application of vibrational parameters to locate the interface in real time and in a situation during solidification. Based on the solidification theory, continuum mechanics, vibrational modal analysis and sensitivity analysis, the mechanical model and the dynamic equations of a typical Bridgman solidifying system have been established, the sensitivity of eigenvalues of the Bridgman system to the location of the solid/liquid interface has been derived, and the formulae concerned calculated. The experimental results are in good agreement with the computed ones.

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