功率超声对A356熔体处理效果的影响

王家宣; 李文杰; 熊洪淼; 王孝文

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功率超声对A356熔体处理效果的影响
Effects of Power Ultrasonic Treatment on A356 Melt
2007年第10期页码：739-741
纸质出版日期： 2007 ，
DOI：

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[1]王家宣,李文杰,熊洪淼,王孝文.功率超声对A356熔体处理效果的影响[J].特种铸造及有色合金,2007(10):739-741+733.

Wang Jiaxuan, Li Wenjie, Xiong Hongmiao, et al. Effects of Power Ultrasonic Treatment on A356 Melt[J]. Special Casting & Nonferrous Alloys, 2007,(10):739-741.
[1]王家宣,李文杰,熊洪淼,王孝文.功率超声对A356熔体处理效果的影响[J].特种铸造及有色合金,2007(10):739-741+733. DOI：

Wang Jiaxuan, Li Wenjie, Xiong Hongmiao, et al. Effects of Power Ultrasonic Treatment on A356 Melt[J]. Special Casting & Nonferrous Alloys, 2007,(10):739-741. DOI：

摘要

采用3种不同功率的超声波对A356合金熔体进行处理

观察超声波及其功率变化对试样微观组织及其宏观形貌的影响

并进一步分析超声波对这些现象的影响机理。结果发现

超声波功率愈大

树枝晶破碎得愈多

晶粒细化效果也愈好

铝液的结晶组织也就越致密

凝固试样上表面就越平整。

Abstract

Effects of power ultrasonic on microstructure and macro-structure of A356 alloy specimens were observed by treating Al melt with three kinds of power ultrasonic

and the mechanism was described. The results reveal that with the increase of power

the grain size is greatly refined as a result of fully broken of dendrite in the alloy melt

leading to the more compact structure in the alloy melt and the more smooth of the Al alloy specimens.