高强超声处理对2024铝合金除气的影响

喻兵; 贾征; 宋婷婷; 付丽

doi:10.15980/j.tzzz.2021.04.014

研究·合金性能 | 浏览量 : 0 下载量: 4 CSCD: 0

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高强超声处理对2024铝合金除气的影响
Effects of High-intensity Ultrasonic on Degassing of 2024 Aluminum Alloy
2021年41卷第4期页码：458-461
纸质出版日期： 2021 ，
DOI： 10.15980/j.tzzz.2021.04.014

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[1]喻兵,贾征,宋婷婷,付丽.高强超声处理对2024铝合金除气的影响[J].特种铸造及有色合金,2021,41(04):458-461.

Yu Bing, Jia Zheng, Song Tingting, et al. Effects of High-intensity Ultrasonic on Degassing of 2024 Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2021,41(4):458-461.
[1]喻兵,贾征,宋婷婷,付丽.高强超声处理对2024铝合金除气的影响[J].特种铸造及有色合金,2021,41(04):458-461. DOI： 10.15980/j.tzzz.2021.04.014.

Yu Bing, Jia Zheng, Song Tingting, et al. Effects of High-intensity Ultrasonic on Degassing of 2024 Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2021,41(4):458-461. DOI： 10.15980/j.tzzz.2021.04.014.

摘要

针对工业铝合金容易形成气孔及组织不均匀问题

以2024铝合金为研究对象

采用高强超声场处理

通过改变超声功率、处理时间、熔体温度及C

预处理后施加超声的措施考察其对合金除气、组织细化及力学性能的影响。结果表明

在本研究范围内

除气率随着超声功率增加而提高;当超声功率不变时

除气率随着超声处理时间的增加而升高

但当超声处理时间过长时其除气率无明显变化;提高处理温度可改善除气率;经过1%的C

预处理后

功率为150W超声所需处理时间降低了40s

同时铸锭的抗拉强度、屈服强度、伸长率分别提高了28.3%、6.7%和2.4%。

Abstract

Aiming at the pores and uneven structure common in 2024 industrial aluminum alloy

effects of ultrasonic power

treatment time

melt temperature and C

pretreatment on degassing

refining and mechanical properties were investigated by high-strength ultrasonic field.The results indicate that degassing efficiency is increased with the increase of ultrasonic power and ultrasonic treatment time with a given the ultrasonic power.However

when the ultrasonic treatment time is excessive

the degassing efficiency keeps a stable.The increase of treatment temperature can greatly promote the degassing efficiency.After degasser pretreatment of 1% C

the ultrasonic treatment time with 150 Wis reduced by 40 s

and the tensile strength

yield strength and elongation of the ingot are increased by 28.3%

6.7%and 2.4%

respectively.