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Determining the Temperature Measurement of Temperature Gradient on ZMLMC Directional Solidification Apparatus and the Effect of Temperature Gradient on Solidification Microstructure

Juhui Zhang

Open publisher page 2 citations

Abstract

The temperature gradient in front of S/L interface was measured on Zone Melting Liquid Metal Cooling(ZMLMC) directional solidification apparatus. The temperature gradient can reach up to 813 K/cm at solidification rate of 3 mm/min. The temperature gradient is found to to reduce with increase of withdrawing speed. The relation between the primary arm spacing λ1 and processing parameter-temperature gradient GL and solidification rate V has been inferred.The preferable directional microstructure is obtained under this process. The test data λ1 and the value of GL -0.5.V -0.25 have been processed through linear regression, and the relation of linear regression can be expressed as:λ1=-0.0032+0.0655G -0.5V -0.25.

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What this paper is about

The temperature gradient in front of S/L interface was measured on Zone Melting Liquid Metal Cooling(ZMLMC) directional solidification apparatus. The temperature gradient can reach up to 813 K/cm at solidification rate of 3 mm/min. The temperature gradient is found to to reduce with increase of withdrawing speed. The relation between the primary arm spacing λ1 and processing parameter-temperature gradient GL and solidification rate V has been inferred.The preferable directional microstructure is obtained under this process. The test data λ1 and the value of GL -0.5.V -0.25 have been processed through linear regression, and the relation of linear regression can be expressed as:λ1=-0.0032+0.0655G -0.5V -0.25.

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Available abstract

The temperature gradient in front of S/L interface was measured on Zone Melting Liquid Metal Cooling(ZMLMC) directional solidification apparatus. The temperature gradient can reach up to 813 K/cm at solidification rate of 3 mm/min. The temperature gradient is found to to reduce with increase of withdrawing speed. The relation between the primary arm spacing λ1 and processing parameter-temperature gradient GL and solidification rate V has been inferred.The preferable directional microstructure is obtained under this process. The test data λ1 and the value of GL -0.5.V -0.25 have been processed through linear regression, and the relation of linear regression can be expressed as:λ1=-0.0032+0.0655G -0.5V -0.25.

Key concepts: Temperature gradient, Directional solidification, Microstructure, Materials science, Concentration gradient, Linear regression, Composite material, Metallurgy

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Determining the Temperature Measurement of Temperature Gradient on ZMLMC Directional Solidification Apparatus and the Effect of Temperature Gradient on Solidification Microstructure — Research Paper | ScholarLens