Microstructural and tensile characterization of Inconel 718 laser coatings for aeronautic components

被引：79
作者：
Lambarri, Jon [1 ]
Leunda, Josu [1 ]
Garcia Navas, Virginia [1 ]
Soriano, Carlos [1 ]
Sanz, Carmen [1 ]
机构：
[1] IK4 Tekniker, Adv Mfg Technol Unit, Eibar 20600, Gipuzkoa, Spain
来源：
OPTICS AND LASERS IN ENGINEERING | 2013年 / 51卷 / 07期
关键词：
Laser cladding; Heat treatment; Inconel; 718; Microstructure; Mechanical properties;
D O I：
10.1016/j.optlaseng.2013.01.011
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The suitability of the laser cladding technique for manufacturing and repairing aeronautic components of Inconel 718 was evaluated. Multilayer coatings were deposited on Inconel 718 plates, using a continuous wave Nd:YAG laser. The microstructure of the laser cladding samples was investigated using optical and scanning electron microscopy and microhardness profiles were measured after different heat treatment stages. Finally, tensile tests were carried out on fully aged samples extracted from a massive multilayer coating. It was proven that the resulting coatings satisfy the industrial requirements for aeronautic applications, with mechanical properties well above the minimum specified values and with no detrimental phases or precipitates left after the heat treatment. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：813 / 821
页数：9
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