Tribo-Mechanical Properties of HVOF Deposited Fe3Al Coatings Reinforced with TiB2 Particles for Wear-Resistant Applications

被引：18

作者：

Amiriyan, Mahdi ^{[1
,2
]}

Blais, Carl ^{[1
,2
]}

Savoie, Sylvio ^{[3
]}

Schulz, Robert ^{[3
]}

Gariepy, Mario ^{[4
]}

Alamdari, Houshang ^{[1
,2
]}

机构：

[1] Univ Laval, Dept Genie Mines Met & Mat, Quebec City, PQ G1V 0A6, Canada

[2] Aluminium Res Ctr REGAL, Quebec City, PQ G1V 0A6, Canada

[3] Hydro Quebec Res Inst, Varennes, PQ J3X 1S1, Canada

[4] Weir Canada Inc, Weir Amer Hydro, La Salle, PQ H8N 1V1, Canada

来源：

MATERIALS | 2016年 / 9卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

iron aluminide; titanium diboride; high-velocity oxy-fuel; HVOF; mechanical properties; dry sliding wear; IRON ALUMINIDE COATINGS; MATRIX COMPOSITE COATINGS; SLIDING WEAR; TRIBOLOGICAL PROPERTIES; SPRAY COATINGS; BEHAVIOR; MICROSTRUCTURE; ALLOYS; AL;

D O I：

10.3390/ma9020117

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：

This study reveals the effect of TiB2 particles on the mechanical and tribological properties of Fe3Al- TiB2 composite coatings against an alumina counterpart. The feedstock was produced by milling Fe3Al and TiB2 powders in a high energy ball mill. The high- velocity oxy- fuel ( HVOF) technique was used to deposit the feedstock powder on a steel substrate. The effect of TiB2 addition on mechanical properties and dry sliding wear rates of the coatings at sliding speeds ranging from 0.04 to 0.8 m s-1 and loads of 3, 5 and 7 N was studied. Coatings made from unreinforced Fe3Al exhibited a relatively high wear rate. The Vickers hardness, elastic modulus and wear resistance of the coatings increased with increasing TiB2 content in the Fe3Al matrix. The wear mechanisms strongly depended on the sliding speed and the presence of TiB2 particles but were less dependent on the applied load.

引用

页数：16

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