Restoration of Aircraft Gas Turbine Engine Titanium Compressor Blades by Laser Surfacing

被引：4
|
作者：
Gorunov, A. I. [1 ]
机构：
[1] Kazan Natl Res Tech Univ KAI, Kazan, Russia
来源：
METALLURGIST | 2017年 / 61卷 / 5-6期
基金：
俄罗斯基础研究基金会;
关键词：
laser surfacing; hardness; titanium alloy; microstructure; compressor blade;
D O I：
10.1007/s11015-017-0523-8
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A procedure and proposed recommendations are developed for restoring VT8 titanium aircraft gas turbine engine compressor blades using powder surfacing with a fiber laser. A procedure is suggested for restoring defective sections and building up titanium blade vane elements on the example of alloy VT8 using powder materials PTOM-1 and VT25U. It is shown that a pulsed laser operating regime during surfacing and minimization of surfacing layer thickness reduces the time for metal in an overheated condition, which ensures a reduction in the possibility of crack and pore formation, and also formation of a coating ultrafine structure.
引用
收藏
页码：498 / 504
页数：7
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