Effects of Ultrasonic Cavitation on Morphology Evolution of Second Phase in Al-5Ti-1B Master Alloy

Zhao Jianhua; Qu Shen; Jiang Wenjun; Ye Wei

doi:10.15980/j.tzzz.2018.09.001

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Effects of Ultrasonic Cavitation on Morphology Evolution of Second Phase in Al-5Ti-1B Master Alloy
Vol. 38, Issue 9, Pages: 929-933(2018)
Published： 2018 ，
DOI： 10.15980/j.tzzz.2018.09.001

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[1]赵建华,屈伸,蒋文君,叶未.超声空化处理Al-5Ti-1B合金中第二相形貌的演变[J].特种铸造及有色合金,2018,38(09):929-933.

Zhao Jianhua, Qu Shen, Jiang Wenjun, et al. Effects of Ultrasonic Cavitation on Morphology Evolution of Second Phase in Al-5Ti-1B Master Alloy. [J]. Special Casting & Nonferrous Alloys 38(9):929-933(2018)
[1]赵建华,屈伸,蒋文君,叶未.超声空化处理Al-5Ti-1B合金中第二相形貌的演变[J].特种铸造及有色合金,2018,38(09):929-933. DOI： 10.15980/j.tzzz.2018.09.001.

Zhao Jianhua, Qu Shen, Jiang Wenjun, et al. Effects of Ultrasonic Cavitation on Morphology Evolution of Second Phase in Al-5Ti-1B Master Alloy. [J]. Special Casting & Nonferrous Alloys 38(9):929-933(2018) DOI： 10.15980/j.tzzz.2018.09.001.

摘要

研究了超声空化处理对Al-5Ti-1B合金中第二相粒子形貌演变的影响。结果表明

超声空化处理能显著改善第二相粒子的形貌和尺寸。随着超声空化处理时间延长

TiAl

颗粒平均尺寸减小

形貌由大块状向小块状过渡

最终形成树枝状;TiB

颗粒由原本在α-Al晶界处的带状聚集转变为基体中的弥散分布

少量附着在TiAl

的表面。超声处理时间为120s时

第二相粒子形貌最佳

TiAl

颗粒平均尺寸为19.3μm

TiB

颗粒平均面积为14.5μm

。

Abstract

Effects of ultrasonic cavitation on morphology evolution of second phase in Al-5Ti-1B master alloy were investigated.The results show that the morphology of the second phase in the prepared master alloy is improved significantly under ultrasonic cavitation.With the increase of ultrasound duration

the morphology of TiAl

phase is changed from block to coarse acicular or plate-like

and the agglomeration of TiB

in the grain boundary ofα-Al is distributed more uniformly with a small amount of attached TiAl

.With treating for 120sof ultrasonic vibration

the average size and average area of TiAl

and TiB

are 19.3μm and 14.5μm

respectively

with more uniform distribution.