Erosion wear behaviour of plasma sprayed NiCrSiB/Al2O3 composite coating

被引：61

作者：

Praveen, Ayyappan Susila ^{[1
]}

Sarangan, J. ^{[1
]}

Suresh, S. ^{[1
]}

Subramanian, J. Siva ^{[2
]}

机构：

[1] Natl Inst Technol, Dept Mech Engn, Tiruchirappalli 620015, Tamil Nadu, India

[2] Sastra Univ, Sch Mech Engn, Thanjavur 613401, Tamil Nadu, India

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2015年 / 52卷

关键词：

Plasma spraying; NiCrSiB/Al2O3; Erosion; MECHANICAL-PROPERTIES; CORROSION-RESISTANCE; THERMAL SPRAY; MICROSTRUCTURE; FLAME; PERFORMANCE; SLURRY;

D O I：

10.1016/j.ijrmhm.2015.06.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, 60 wt.% NiCrSiB-40 wt.% Al2O3 composite coating was produced on AISI 304 substrate material using the atmospheric plasma spraying technique. The coating surface has been characterised using a scanning electron microscope (SEM), optical microscope and X-ray diffractometer (XRD). The microhardness, porosity, density and surface roughness of the coating were measured. The adhesion strength of the coating was measured using pull off adhesion tester. The erosion behaviour of plasma sprayed coating was studied at 450 degrees C using hot air jet erosion testing machine. The erosion rate of coated and uncoated samples was evaluated at 30 degrees and 90 degrees erodent impact angles. The SEM images of the eroded samples were taken to analyse the erosion mechanism. The test results reveal that the coating protects the substrate at both 30 degrees and 90 degrees impact angles. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：209 / 218

页数：10

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