Laser cladding of TiAl intermetallic alloy on Ti6A14V. Process optimization and properties.

被引：54

作者：

Carcel, B. ^{[1
]}

Serrano, A. ^{[1
]}

Zambrano, J. ^{[2
]}

Amigo, V. ^{[3
]}

Carcel, A. C. ^{[3
]}

机构：

[1] AIDO, Valencia, Spain

[2] Univ Carabobo, CIM, Naguanagua, Carabobo, Venezuela

[3] Univ Politecn Valencia, ITM, Valencia, Spain

来源：

8TH INTERNATIONAL CONFERENCE ON LASER ASSISTED NET SHAPE ENGINEERING (LANE 2014) | 2014年 / 56卷

关键词：

Laser; Cladding; TiAI; Titanium; TBC; MECHANICAL-PROPERTIES; PLASMA;

D O I：

10.1016/j.phpro.2014.08.173

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to improve Ti6A14V high-temperature resistance and its tribological properties, the deposition of TiAl intermetallic (Ti48A1-2Cr-2Nb) coating on a Ti6A14V substrate by coaxial laser cladding has been investigated. Laser cladding by powder injection is an emerging laser material processing technique that allows the deposition of thick protective coatings on substrates, using a high power laser beam as heat source. Laser cladding is a multiple-parameter-dependent process. The main process parameters involved (laser power, powder feeding rate, scanning speed and preheating temperature) has been optimized. The microstructure and geometrical quantities (clad area and dilution) of the coating was characterized by optical microscopy and scanning electron microscopy (SEM),In addition the cooling rate of the clad during the process was measured by a dual-color pyrometer. This result has been related to defectology and mechanical coating properties.

引用

页码：284 / 293

页数：10

共 9 条

[1]

[Anonymous], TITANIUM TITANIUM AL

[2] Analysis of coaxial laser cladding processing conditions [J].