Influence of Cold Gas Spray process conditions on the microstructure of Fe-based amorphous coatings

被引：65

作者：

Henao, J. ^{[1
]}

Concustell, A. ^{[1
]}

Cano, I. G. ^{[1
]}

Cinca, N. ^{[1
]}

Dosta, S. ^{[1
]}

Guilemany, J. M. ^{[1
]}

机构：

[1] Univ Barcelona, CPT, Thermal Spray Ctr, Barcelona 08028, Spain

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 622卷

关键词：

Metallic glass; Coatings; Cold Gas Spray; Microstructure; BULK METALLIC-GLASS; MAGNETIC-PROPERTIES; BEHAVIOR; DEPOSITION; ALLOYS; WEAR; TI; NITIZRSISN;

D O I：

10.1016/j.jallcom.2014.11.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fe-based amorphous metallic coatings were prepared by Cold Gas Spray process. Through this study, the effects of the process conditions such as spraying distance, gas pressure and temperature on the microstructure of as-sprayed coatings are evaluated. Microstructural studies show that the coatings can present a densely layered structure with porosity below 0.5% and thickness around 800 mu m depending on the process conditions. Precipitation of nanocrystals in as-sprayed coatings is observed and present results show its dependence on the thermal and kinetic energy implicated in the process. In general, when gas temperature and pressure decreased, in the studied range, coatings displayed a dense and amorphous structure. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：995 / 999

页数：5

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