Melt Reaction Mechanism of Al-Ti-B System

Lan Yefeng; Zhang Jijun; Zhu Zhengfeng; Guo Peng

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Melt Reaction Mechanism of Al-Ti-B System
Issue 1, Pages: 12-14(2006)
Published： 2006 ，
DOI：

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[1]兰晔峰,张继军,朱正锋,郭朋.制备Al-Ti-B中间合金熔体反应机理的研究[J].特种铸造及有色合金,2006(01):12-14+3+2.

Lan Yefeng, Zhang Jijun, Zhu Zhengfeng, et al. Melt Reaction Mechanism of Al-Ti-B System. [J]. Special Casting & Nonferrous Alloys (1):12-14(2006)
[1]兰晔峰,张继军,朱正锋,郭朋.制备Al-Ti-B中间合金熔体反应机理的研究[J].特种铸造及有色合金,2006(01):12-14+3+2. DOI：

Lan Yefeng, Zhang Jijun, Zhu Zhengfeng, et al. Melt Reaction Mechanism of Al-Ti-B System. [J]. Special Casting & Nonferrous Alloys (1):12-14(2006) DOI：

摘要

研究了纯钛颗粒法制备Al-Ti-B中间合金的反应机制

探讨了3种加料方式下熔体反应的热力学机理。试验表明在充分反应的情况下

3种加料方式制备Al-Ti-B中间合金的相结构相同;在先加KBF4的情况下

熔体中将出现AlB2相

不过在有溶解钛的条件下

经充分反应其将会最终转换为TiB2相;混合加料形成第二相（TiAl3

TiB2）最为直接。

Abstract

The reaction mechanism of Al-Ti-B system prepared with pure Ti particle was investigated

and the ther-mo-dynamics of melt reaction for three kinds of addition ways were approached. The experimental results show that Al-Ti-B master alloys prepared by three kinds of addition ways possess the same phase structure in case of complete reaction. Although the A1B2 phase occurs in the melt a-head of adding KBF4

it is finally converted into TiB2 phase through completely melt reaction with Ti soluted in aluminum melt. The forming of second phase （TiAl3

TiB2） is the fastest in the condition of mixing addition.