Microstructure and Properties of In Situ Synthesis of TiC Particle Reinforced Composite Coating by Induction Cladding

2007 ◽  
Vol 336-338 ◽  
pp. 1725-1727 ◽  
Author(s):  
Zhen Ting Wang ◽  
Yong Dong Wang
Keyword(s):  
Composite Coating ◽  
Volume Fraction ◽  
Steel Substrate ◽  
Reinforced Composite ◽  
Metallurgical Bonding ◽  
Tic Particle ◽  
Nickel Based Alloy ◽  
Coating Matrix ◽  
Particle Reinforced Composite

A composite coating with TiC Particle of embedded in nickel based alloy has been in-situ synthesized by induction cladding a precursor mixture of nickel based alloy powder, titanium and graphite powders. The results showed that the composite coating has good metallurgical bonding with the substrate as well as there is a good wettability between the reinforcement TiC and the coating matrix. The microstructure of the composite coating is mainly composed of γ-Ni dendrite, a small amount of M23C6, and dispersed TiC particle. The volume fraction of TiC particle increases with increasing of volume fraction of titanium and graphite. The microhardness gradually increased from the bottom to the top of the composite coating. The average microhardness of the composite coating is HV0.21200, 5 times larger than that of the 16Mn steel substrate.

In situ synthesis of WC ceramic particle reinforced composite coating by GTAW

2015 ◽  
Vol 19 (sup9) ◽  
pp. S9-314-S9-317
Author(s):  
Y. F. Xiao ◽  
H. Du ◽  
X. F. Li ◽  
Y. F. Xu ◽  
L. Wu ◽  
...  
Keyword(s):  
Composite Coating ◽  
Ceramic Particle ◽  
In Situ Synthesis ◽  
Reinforced Composite ◽  
Particle Reinforced Composite

MICROSTRUCTURE AND PROPERTIES OF IN SITU SYNTHESIZED ZrC-ZrB2/Fe COMPOSITE COATING PRODUCED BY GTAW

2009 ◽  
Vol 23 (06n07) ◽  
pp. 1438-1443 ◽  
Author(s):  
ZHENTING WANG ◽  
LILI CHEN ◽  
XIANYOU ZHANG
Keyword(s):  
Wear Resistance ◽  
Composite Coating ◽  
Volume Fraction ◽  
Steel Substrate ◽  
Composite Coatings ◽  
Energy Dispersive Spectrum ◽  
X Ray Diffraction ◽  
Gas Tungsten Arc ◽  
C 30

A metal matrix composite coating reinforced by ZrC - ZrB 2 particulates has been successfully fabricated utilizing the in situ reaction of Zr , B 4 C and Fe pre-placed mixed powders by gas tungsten arc welding (GTAW) cladding process. Various volume fraction of ZrC - ZrB 2 particulates composite coatings were produced through cladding different weight ratios of Zr + B 4 C (30%, 50%, 70%) to improve the wear resistance of AISI1020 steel substrate. The Microstructure of the coating was analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive spectrum (EDS), meantime microhardness and wear resistance at room temperature of the composite coating were examined by means of Microhardness Tester and Wear Tester, respectively. The results show that the main phases of the composite coating obtained by GTAW are ZrC , ZrB 2 and α- Fe , ZrC exhibits hexahedron and petal shapes, ZrC - ZrB 2 compound presents acicular and clubbed forms. With the increase of content of Zr + B 4 C , the maximum volume fraction of ZrC - ZrB 2 particulates can reach 16.5%, microhardness is up to 1300HV, and wear resistance is about twenty times higher than that of AISI1020 steel substrate.

Microstructure and Wear Property of TiC Particle Reinforced Composite Coatings on H13 Steel Surface by Laser in-situ Synthesis

2014 ◽  
Vol 41 (10) ◽  
pp. 1003004
Author(s):  
姚爽 Yao Shuang ◽  
刘洪喜 Liu Hongxi ◽  
张晓伟 Zhang Xiaowei ◽  
李琦 Li Qi ◽  
张旭 Zhang Xu
Keyword(s):  
Steel Surface ◽  
Composite Coatings ◽  
In Situ Synthesis ◽  
Wear Property ◽  
H13 Steel ◽  
Reinforced Composite ◽  
Tic Particle ◽  
Particle Reinforced Composite

Laser Alloying in-situ Carbide Particle Reinforced Composite Layers on the Gray Cast Iron with Ni-base Powder

Applied laser ◽  
2010 ◽  
Vol 30 (4) ◽  
pp. 249-253
Author(s):  
郑伟 Zheng Wei ◽  
马明星 Ma Mingxing ◽  
朱有慧 Zhu Youhui ◽  
张伟明 Zhang Weiming ◽  
孙康和 Sun Kanghe ◽  
...  
Keyword(s):  
Cast Iron ◽  
Gray Cast Iron ◽  
Carbide Particle ◽  
Gray Cast ◽  
Laser Alloying ◽  
Base Powder ◽  
Reinforced Composite ◽  
Composite Layers ◽  
Particle Reinforced Composite

SURFACE PROPERTIES OF THE IN SITU FORMED CERAMICS REINFORCED COMPOSITE COATINGS ON TI-3AL-2V ALLOYS

2012 ◽  
Vol 19 (02) ◽  
pp. 1250009 ◽  
Author(s):  
PENG LIU ◽  
WEI GUO ◽  
DAKUI HU ◽  
HUI LUO ◽  
YUANBIN ZHANG
Keyword(s):  
Wear Resistance ◽  
Titanium Alloy ◽  
Composite Coating ◽  
Surface Properties ◽  
Laser Cladding ◽  
Composite Coatings ◽  
Micro Hardness ◽  
Reinforced Composite

The synthesis of hard composite coating on titanium alloy by laser cladding of Al/Fe/Ni+C/Si3N4 pre-placed powders has been investigated in detail. SEM result indicated that a composite coating with metallurgical joint to the substrate was formed. XRD result indicated that the composite coating mainly consisted of γ- (Fe, Ni) , FeAl , Ti3Al , TiC , TiNi , TiC0.3N0.7 , Ti2N , SiC , Ti5Si3 and TiNi . Compared with Ti-3Al-2V substrate, an improvement of the micro-hardness and the wear resistance was observed for this composite coating.

Microstructure and Properties of Fe-Based Composite Coating by Plasma Jet Surface Metallurgy

2011 ◽  
Vol 179-180 ◽  
pp. 253-256
Author(s):  
Hao Chen ◽  
Jian Gao Yang ◽  
Mi Song Chen
Keyword(s):  
Steel Substrate ◽  
Composite Coatings ◽  
Low Carbon Steel ◽  
Plasma Jet ◽  
Optical Microscope ◽  
Al Alloy ◽  
Low Carbon ◽  
X Ray Diffraction ◽  
Metallurgical Bonding

The Fe-based composite coatings were formed by plasma jet surface metallurgy using Fe, C, W, Cr and Al alloy powders on the low carbon steel. The morphology, microstructure, interface structure and the distribution of the in situ particles in the coatings were observed with optical microscope, scanning electron microscope and x-ray diffraction analysis. The results show that metallurgical bonding is obtained between coating and substrate, and the microstructure of coatings is mainly composed of γ-Fe, (Fe,Cr,W,Nb)7C3 and AlFe particles which are synthesized in stiu, are dispersivly distributed in the coatings. The micro-hardness gradually increased from bottom to the top of the coating, the maximum is 986 Hv0.1, about 4 times larger than that of the steel substrate.

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