Complex refurbishment of titanium turbine blades by applying heat-resistant coatings by direct metal deposition

被引：19
作者：
Gorunov, A. I. [1 ]
机构：
[1] Kazan Natl Res Tech Univ, Kazan 420111, Russia
来源：
ENGINEERING FAILURE ANALYSIS | 2018年 / 86卷
关键词：
Direct metal deposition; Titanium alloy; Coating; Microstructure; Chemical composition; MATRIX COMPOSITE; LASER; MICROSTRUCTURE; ALLOY; INDUSTRY;
D O I：
10.1016/j.engfailanal.2018.01.001
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The paper presents a comprehensive approach to the refurbishment of titanium turbine blades by direct laser deposition. Coatings based on titanium carbide with the introduction of boron carbide and tungsten carbide particles for airfoil shroud platform and based on the commercially pure Ti with the addition of fine particles of aluminum oxide for the turbine airfoil are proposed. It is shown that large refractory particles with a hardness of 1384 HV0.1/5108 HV0.1 are crystallization centers and reinforcing particles, and melting fine particles form high-temperature phases of TiB and Ti3Al in the coating metal with a hardness of 520 HV0.1.
引用
收藏
页码：115 / 130
页数：16
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