The Microstructure, Surface Topography and Wear Resistance of Cold-Sprayed (Cr3C2-25(Ni20Cr))-(Ni-graphite) Composite Coatings Modified by Diode Laser Treatment

被引：2

作者：

Trelka-Druzic, Anna ^{[1
]}

Zorawski, Wojciech ^{[2
]}

Litynska-Dobrzynska, Lidia ^{[1
]}

Maj, Lukasz ^{[1
]}

Kot, Marcin ^{[3
]}

Wiazania, Grzegorz ^{[3
]}

Goral, Anna ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Met & Mat Sci, 25 Reymonta St, PL-30059 Krakow, Poland

[2] Kielce Univ Technol, Fac Mechatron & Mech Engn, Tysiaclec Panstwa Polskiego 7, PL-25314 Kielce, Poland

[3] AGH Univ Sci & Technol, Fac Mech Engn & Robot, Lab Surface Engn & Tribol, Mickiewicza 30 Ave B2, PL-30059 Krakow, Poland

来源：

JOURNAL OF THERMAL SPRAY TECHNOLOGY | 2024年 / 33卷 / 05期

关键词：

cermet coating; cold spraying; microstructure; surface laser treatment; tribological properties; CR3C2-NICR COATINGS; MECHANICAL-PROPERTIES; PARTICLE MORPHOLOGY; CARBIDE DEVELOPMENT; HVOF; IMPROVEMENT; PROPERTY; CRACKING;

D O I：

10.1007/s11666-024-01790-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cold-sprayed composite coatings have several advantages; however, some properties, such as hardness and abrasion resistance, are lower than those in plasma- or HVOF-sprayed deposits. This work showed that the use of surface diode laser processing allowed the development of (Cr3C2-25(Ni20Cr))-(Ni-graphite) cermet coatings with good adhesion to the steel substrate, and increased properties in the near-surface zone, below which the properties of cold-sprayed coatings were retained. Studies of the microstructure in the micro/nanoscale of the laser-treated coatings showed strong grain refinement after surface treatment. Cr7C3 carbide of various shapes and sizes was formed in the structure; while, a several hundred nanometre layer of Cr2O3 oxide appeared on the coating surface. The changes occurring in the microstructure have resulted in increased mechanical and tribological properties of the laser-treated zone of deposits.

引用

页码：1389 / 1403

页数：15

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