硼化处理去除铝中钒、钛的热力学研究  

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

作　　者：秦颐鸣 庄林忠 冯恩浪 蒙志保 王春霞[3] Qin Yiming;Zhuang Linzhong;Feng Enlang;Meng Zhibao;Wang Chunxia(Geely Baise Mining Group Co.,Ltd.;State Key Laboratory of New Metal Materials,University of Science and Technology Beijing;School of Materials Science and Engineering,Guilin University of Technology)

机构地区：[1]吉利百矿集团有限公司 [2]北京科技大学新金属材料国家重点实验室 [3]桂林理工大学材料科学与工程学院,广西桂林541004

出　　处：《特种铸造及有色合金》2020年第9期1024-1026,共3页Special Casting & Nonferrous Alloys

基　　金：广西重点研发计划资助项目(桂科AB19185007);广西重大专项资助项目(桂科AA17204012)。

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TiB2相,然后析出VB2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0.0005%和0.0025%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。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-0.005Vin 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:TiB2→VB2.The content of solute V and Ti in the Al-melt can be controlled below 0.0005%and 0.0025%,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.

关 键 词：硼化处理 热力学 提纯 钒 钛 

分 类 号：TG166.3[金属学及工艺—热处理] TG146.21[金属学及工艺—金属学]