Influence of ultrasonic vibration on mechanical properties and microstructure of 1Cr18Ni9Ti stainless steel

被引：41

作者：

Qingmei, Liu ^{[1
]}

Yong, Zhang ^{[1
]}

Yaoling, Song ^{[1
]}

Feipeng, Qi ^{[1
]}

Qijie, Zhai ^{[1
]}

机构：

[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China

来源：

MATERIALS & DESIGN | 2007年 / 28卷 / 06期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.matdes.2006.04.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of ultrasonic vibration on the mechanical properties and microstructure of 1Cr18Ni9Ti stainless steel is investigated. Along the horizontal direction, the molten alloy is treated by ultrasonic power of 400 W, 500 W, 600 W and 700 W, respectively. Experiment results show that considerable improvement of mechanical properties can be achieved attributing to the ultrasonic treatments. Furthermore, with the effect of radiation force of ultrasonic, long dendritic microstructure is broken into pieces. In particle, when ultrasonic power reaches to 700 W, long dendritic microstructure is disappeared and transformed into equiaxed one. Base on the experimental results and theoretical deduction, it is confirmed that radiation force induced by ultrasonic plays a decisive role in structure refinement. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1949 / 1952

页数：4

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