Experimental Investigation of the Overlap Process in Metal Droplet Successive Deposition and Solidification

被引：0

作者：

Li, Suli ^{[1
]}

Wei, Zhengying ^{[1
]}

Du, Jun ^{[1
]}

Zhao, Guangxi ^{[1
]}

Wang, Xin ^{[1
]}

Lu, Bingheng ^{[1
]}

机构：

[1] The State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an,710049, China

来源：

Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2017年 / 46卷 / 12期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Aluminum coatings - Deposition - Aluminum - Microstructure - Drops - Liquid metals - Numerical models;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper presents a systematic numerical and experimental investigation of the transient transport phenomenon during the overlap of successive aluminum droplets impinging onto a substrate surface. The 3D models based on a volume of fluid (VOF) method were developed to investigate the successive deposition of molten metal droplets on a horizontally fixed aluminum substrate surface. The numerical models are validated with experiments. The comparisons between numerical simulations and experimental findings show a good agreement. The effects of various parameters such as impact velocities, substrate temperatures and droplet diameters on the maximum spread factor during impacting and spreading with solidification of a molten droplet onto an aluminum substrate surface under different parameters were studied. Based on the above research, the relationships between external morphology and internal microstructure were proposed, which was further certified by investigating the overlap of successive droplets. © 2017, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.

引用

页码：3645 / 3650