Advanced chromium carbide-based hardfacings

被引：85

作者：

Zikin, A. ^{[1
,2
]}

Hussainova, I. ^{[2
]}

Katsich, C. ^{[1
]}

Badisch, E. ^{[1
]}

Tomastik, C. ^{[1
]}

机构：

[1] AC2T Res GmbH, A-2700 Wiener Neustadt, Austria

[2] TUT, Dept Mat Engn, EE-19086 Tallinn, Estonia

来源：

SURFACE & COATINGS TECHNOLOGY | 2012年 / 206卷 / 19-20期

关键词：

PTA; Hardfacing; Cr3C2-Ni; Nanoindentation; High temperature wear; Tribology; THERMAL SPRAY COATINGS; WEAR MECHANISMS; CERMETS; EROSION; MICROSTRUCTURE; TEMPERATURE; CR3C2-NICR; ABRASION; PERFORMANCE; BEHAVIOR;

D O I：

10.1016/j.surfcoat.2012.04.039

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ceramic metal composite powders are widely used in thermal spray technologies; however, application of such hardphases in cladding systems has not been strongly developed yet. In the present study, two different hardfacings produced by the plasma transferred arc (PTA) process were analysed and compared to reveal differences between NiCrBSi coatings reinforced with standard chromium carbide and chromium-based cermet powders. The coatings were produced from a mixture of hardphases (Cr3C2 or Cr3C2-Ni) and nickel based powder with a ratio of 40/60 vol.%. The coatings' thickness was set to 2-2.5 mm on an austenite substrate. Hardfacings were characterised in terms of their microstructures, mechanical properties and impact-abrasion wear resistance at room and elevated temperatures. The manufactured Cr3C2-Ni reinforced hardfacing alloy has shown promising microstructural features with a low level of carbide dissolution and high temperature wear performance. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：4270 / 4278

页数：9

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