Thermodynamic Analysis of Boronizing Removal of Vanadium and Titanium from Al-melt

Qin Yiming; Zhuang Linzhong; Feng Enlang; Meng Zhibao; Wang Chunxia

doi:10.15980/j.tzzz.2020.09.023

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Thermodynamic Analysis of Boronizing Removal of Vanadium and Titanium from Al-melt
Vol. 40, Issue 9, Pages: 1024-1026(2020)
Published： 2020 ，
DOI： 10.15980/j.tzzz.2020.09.023

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[1]秦颐鸣,庄林忠,冯恩浪,蒙志保,王春霞.硼化处理去除铝中钒、钛的热力学研究[J].特种铸造及有色合金,2020,40(09):1024-1026.

Qin Yiming, Zhuang Linzhong, Feng Enlang, et al. Thermodynamic Analysis of Boronizing Removal of Vanadium and Titanium from Al-melt. [J]. Special Casting & Nonferrous Alloys 40(9):1024-1026(2020)
[1]秦颐鸣,庄林忠,冯恩浪,蒙志保,王春霞.硼化处理去除铝中钒、钛的热力学研究[J].特种铸造及有色合金,2020,40(09):1024-1026. DOI： 10.15980/j.tzzz.2020.09.023.

Qin Yiming, Zhuang Linzhong, Feng Enlang, et al. Thermodynamic Analysis of Boronizing Removal of Vanadium and Titanium from Al-melt. [J]. Special Casting & Nonferrous Alloys 40(9):1024-1026(2020) DOI： 10.15980/j.tzzz.2020.09.023.

摘要

通过计算成分为Al-0.064Si-0.106Fe-0.004Ti-0.005V的铝液在硼化处理过程中的成分变化和析出相

分析了B添加量对铝液中V、Ti含量的影响

并提出了硼添加量的推荐计算公式。结果表明

提高铝液温度有利于提高B的溶解度

铝液在硼化处理的温降过程中优先析出TiB

相

然后析出VB

相;通过控制B的添加量和铝液温度

可以将铝液中溶质V、Ti含量分别控制在0.000 5%和0.002 5%以下

合理的B添加量可以根据铝液初始的Ti、V元素含量进行计算。

Abstract

The effects of B addition on the content of V and Ti in the Al-melt were analyzed by calculating the compositional variation and precipitation phase of Al-0.064Si-0.106Fe-0.004Ti-0.005V in the process of boronization

and the recommended calculation formula of B addition was put forward.The results show that it is beneficial to improving the solubility of B with increasing the temperature of Al-melt

and the sequence of precipitation phase in the cooling process of boronizing can be expressed as follow:TiB

→VB

.The content of solute V and Ti in the Al-melt can be controlled below 0.000 5% and 0.002 5%

respectively

by controlling the amount of B addition and the temperature of Al-melt

and the reasonable amount of B addition can be calculated according to the initial content of titanium and vanadium.