Microstructure and performance of Nb-bearing Ni60A-Cr3C2 coatings manufactured by laser cladding

被引：17

作者：

Ping, Xue-Long ^{[1
]}

Fu, Han-Guang ^{[1
]}

Sun, Shu-Ting ^{[1
]}

Lin, Jian ^{[1
]}

Guo, Xing-Ye ^{[1
]}

Lei, Yong-Ping ^{[1
]}

机构：

[1] Beijing Univ Technol, Res Inst Adv Mat Proc Technol, Key Lab Adv Funct Mat, Minist Educ, 100 Pingle Garden, Beijing 100124, Peoples R China

来源：

SURFACE ENGINEERING | 2020年 / 36卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Laser cladding; Ni60A-Cr3C2; coatings; Nb addition; microstructure; micro-hardness; abrasive resistance; IN-SITU NBC; COMPOSITE COATINGS; WEAR-RESISTANCE; ALLOY; BEHAVIOR; CARBIDE; WC;

D O I：

10.1080/02670844.2019.1631510

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The Ni60A-Cr3C2 coatings with different Nb addition were prepared by laser cladding. The microstructure was observed by SEM and TEM. The chemical composition of phases was studied by X-ray diffractometer and Electron Probe Micro-analyzer (EPMA). Microhardness and wear behaviour were measured by microhardness tester and wear tester, respectively. The results show that the main phases in Ni60A-Cr3C2 coating are gamma-Ni, Cr7C3, Cr23C6, Ni3Si2, Ni3B and CrB. With Nb addition, the NbC phase appears in the coatings. The size and volume fraction of NbC increase with the increase of Nb addition. The hardness and wear resistance increase first and then decrease with the increase of Nb addition. The micro-hardness of coatings with 2 wt-% Nb addition is the highest, reaching 1046.6 Hv0.2. The relative abrasive resistance of coatings with 3 wt-% Nb addition is the best, and is 2.33 times that of Nb-free coatings.

引用

页码：1294 / 1306

页数：13

共 37 条

[1]

[Anonymous], 2016, INSTRUCTIONS IPG LAS

[2] In situ formation of Fe-NbC/C composite powders from solution-derived precursors by a gas reduction-carburization process [J].

Belen Gilliard, Maria ;

Teresita Pierini, Beatriz ;

Alejandra Alconchel, Silvia .

CERAMICS INTERNATIONAL, 2014, 40 (09) :14881-14889

[3] Formation behavior of in-situ NbC in Fe-based laser cladding coatings [J].

Cao, Ya-bin ;

Zhi, Shi-xin ;

Gao, Qi ;

Tian, Xin-tao ;

Geng, Tao ;

Guan, Xin ;

Qin, Cha .

MATERIALS CHARACTERIZATION, 2016, 119 :159-165

[4] Comparative examination of the microstructure and high temperature oxidation performance of NiCrBSi flame sprayed and pack cementation coatings [J].

Chaliampalias, D. ;

Vourlias, G. ;

Pavlidou, E. ;

Skolianos, S. ;

Chrissafis, K. ;

Stergioudis, G. .

APPLIED SURFACE SCIENCE, 2009, 255 (06) :3605-3612

[5] Microstructure and wear resistance of Co-based/Cr3C2 coatings with CeO2 [J].

Chen, Yao ;

Chao, Y. J. ;

Luo, Zhen ;

Cai, Yangchuan ;

Ma, Chengyong .

SURFACE ENGINEERING, 2018, 34 (08) :588-595

[6]

Dong G, 2011, RARE METAL MAT ENG, V40, P973

[7] Laser cladding assisted by induction heating of Ni-WC composite enhanced by nano-WC and La2O3 [J].

Farahmand, Parisa ;

Liu, Shuang ;

Zhang, Zhe ;

Kovacevic, Radovan .

CERAMICS INTERNATIONAL, 2014, 40 (10) :15421-15438

[8] Effect of Ti addition on cracking and microhardness of Inconel 625 during the laser solid forming processing [J].

Hu, Y. L. ;

Lin, X. ;

Yu, X. B. ;

Xu, J. J. ;

Lei, M. ;

Huang, W. D. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 711 :267-277

[9] Dry sliding wear behavior of laser clad TiVCrAlSi high entropy alloy coatings on Ti-6Al-4V substrate [J].

Huang, Can ;

Zhang, Yongzhong ;

Vilar, Rui ;

Shen, Jianyun .

MATERIALS & DESIGN, 2012, 41 :338-343

[10] NbC as grain growth inhibitor and carbide in WC-Co hardmetals [J].

Huang, S. G. ;

Liu, R. L. ;

Li, L. ;

Van der Biest, O. ;

Vleugels, J. .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2008, 26 (05) :389-395

← 1 2 3 4 →