Effect of high power ultrasound on mechanical properties of Al-Si alloys

International Conference on Recent Advances in Materials, Mechanical and Civil Engineering

材料科学;机械制造;土木建筑工程

Srivastava, N.^1 ; Gupta, R.^1 ; Chaudhari, G.P.^1

Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Roorkee

247667, India^1

关键词: High power ultrasound;    High-power ultrasonics;    Primary phase;    Properties of Al;    Solidification microstructures;    Solute content;    Ultrasonic treatments;    Weight percentages;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/330/1/012023/pdf
DOI  :  10.1088/1757-899X/330/1/012023

来源: IOP

【 摘 要 】

Effect of high power ultrasonic treatment on the solidification microstructures of Al-Si alloys containing varying content of solute Si (1, 2, 3 and 5 wt %) is investigated. Large variation in microstructures is seen and refinement of primary α-Al grains is observed. It is observed that increasing the weight percentage of solute along with ultrasonic treatment resulted in finer primary phase. By increasing the solute content from 1% to 5 wt.% in Al-Si alloys, hardness increased by about 38% without and 48% with ultrasonic treatment. Tensile strength of the alloys with ultrasonic treatment is higher as compared to those without ultrasonic treated.