Transpiration cooling during ultra-high temperature erosion

被引：15
作者：
Ahangarkani, Meysam [1 ]
Zangeneh-Madar, Karim [1 ]
Borji, Saeed [1 ]
机构：
[1] Malek Ashtar Univ Technol, Dept Mat & Fabricat, Tehran, Iran
来源：
MATERIALS LETTERS | 2018年 / 211卷
关键词：
Metallic composite; Sintering; Transpiration cooling; Impact angle;
D O I：
10.1016/j.matlet.2017.10.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In present study the static firing of the bi-propellant engine has been employed to investigate the transpiration cooling phenomenon of W-Cu materials during ultra-high erosion against liquid alumina droplets. For this purpose, two samples of W-10 wt% Cu composite were prepared by sintering+infiltration method. The erosion test carried out at 3000 degrees C for 40 s at the alumina droplet speed of 1200 m s (1). Two incident angle of 0 degrees and 30 degrees selected to study the effect of erosion angle on transpiration cooling. The microstructure evolutions were studied by SEM and EDS. The obtained results exhibited that erosion at 30 degrees resulted in higher deposited alumina layer as well as lower erosion rate. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：203 / 207
页数：5
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