Microstructure and Abrasion Resistance of <i>In-situ</i> TiC Particles Reinforced Ni-based Composite Coatings by Laser Cladding
Laser cladding of Ni-based Ni60A+<i>x</i>% (SiC+Ti)(mass fraction,the same below) composite powder coating on 45 steel substrate was studied by using the method of preplaced powder. The dry friction and wear experiments of different material coatings were carried out by reciprocating fri...
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doaj-e77581ac754c4f2099c1d0d550f1389a2020-11-24T22:48:02ZzhoJournal of Materials EngineeringJournal of Materials Engineering1001-43811001-43812017-06-01456243010.11868/j.issn.1001-4381.2016.001215201706001215Microstructure and Abrasion Resistance of <i>In-situ</i> TiC Particles Reinforced Ni-based Composite Coatings by Laser CladdingMA Shi-bang0XIA Zhen-wei1XU Yang2SHI Huan-ru3WANG Xu4ZHENG Yue5College of Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Engineering, China Agricultural University, Beijing 100083, ChinaLaser cladding of Ni-based Ni60A+<i>x</i>% (SiC+Ti)(mass fraction,the same below) composite powder coating on 45 steel substrate was studied by using the method of preplaced powder. The dry friction and wear experiments of different material coatings were carried out by reciprocating friction wear tester. The microstructure and worn morphology of cladding layers were observed and analyzed by using metallographic microscope, scanning electron microscope(SEM) respectively. The results show that the prepared composite coating with dispersively distributed TiC enhanced particles are obtained <i>in-situ</i>, the size and number of the granular TiC gradually increase with the increase of the composite powder SiC+Ti. When the composite powder SiC+Ti reaches 60%, pores and inclusions defects exist in microstructure. When the composite powder SiC+Ti reaches 48%, wear resistance of cladding coating is the best. The wear behavior of the composite coating is abrasive wear, and the mechanism is micro cutting and extrusion spalling.http://jme.biam.ac.cn/CN/Y2017/V45/I6/24laser claddingreaction <i>in-situ</i>TiCwear resistancestrengthening mechanism |
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DOAJ |
language |
zho |
format |
Article |
sources |
DOAJ |
author |
MA Shi-bang XIA Zhen-wei XU Yang SHI Huan-ru WANG Xu ZHENG Yue |
spellingShingle |
MA Shi-bang XIA Zhen-wei XU Yang SHI Huan-ru WANG Xu ZHENG Yue Microstructure and Abrasion Resistance of <i>In-situ</i> TiC Particles Reinforced Ni-based Composite Coatings by Laser Cladding Journal of Materials Engineering laser cladding reaction <i>in-situ</i> TiC wear resistance strengthening mechanism |
author_facet |
MA Shi-bang XIA Zhen-wei XU Yang SHI Huan-ru WANG Xu ZHENG Yue |
author_sort |
MA Shi-bang |
title |
Microstructure and Abrasion Resistance of <i>In-situ</i> TiC Particles Reinforced Ni-based Composite Coatings by Laser Cladding |
title_short |
Microstructure and Abrasion Resistance of <i>In-situ</i> TiC Particles Reinforced Ni-based Composite Coatings by Laser Cladding |
title_full |
Microstructure and Abrasion Resistance of <i>In-situ</i> TiC Particles Reinforced Ni-based Composite Coatings by Laser Cladding |
title_fullStr |
Microstructure and Abrasion Resistance of <i>In-situ</i> TiC Particles Reinforced Ni-based Composite Coatings by Laser Cladding |
title_full_unstemmed |
Microstructure and Abrasion Resistance of <i>In-situ</i> TiC Particles Reinforced Ni-based Composite Coatings by Laser Cladding |
title_sort |
microstructure and abrasion resistance of <i>in-situ</i> tic particles reinforced ni-based composite coatings by laser cladding |
publisher |
Journal of Materials Engineering |
series |
Journal of Materials Engineering |
issn |
1001-4381 1001-4381 |
publishDate |
2017-06-01 |
description |
Laser cladding of Ni-based Ni60A+<i>x</i>% (SiC+Ti)(mass fraction,the same below) composite powder coating on 45 steel substrate was studied by using the method of preplaced powder. The dry friction and wear experiments of different material coatings were carried out by reciprocating friction wear tester. The microstructure and worn morphology of cladding layers were observed and analyzed by using metallographic microscope, scanning electron microscope(SEM) respectively. The results show that the prepared composite coating with dispersively distributed TiC enhanced particles are obtained <i>in-situ</i>, the size and number of the granular TiC gradually increase with the increase of the composite powder SiC+Ti. When the composite powder SiC+Ti reaches 60%, pores and inclusions defects exist in microstructure. When the composite powder SiC+Ti reaches 48%, wear resistance of cladding coating is the best. The wear behavior of the composite coating is abrasive wear, and the mechanism is micro cutting and extrusion spalling. |
topic |
laser cladding reaction <i>in-situ</i> TiC wear resistance strengthening mechanism |
url |
http://jme.biam.ac.cn/CN/Y2017/V45/I6/24 |
work_keys_str_mv |
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