scholarly journals Microstructure and mechanical properties investigation of Ni35A–TiC composite coating deposited on AISI 1045 steel by laser cladding

2021 ◽  
Author(s):  
Hao Zhang ◽  
Guofu Lian ◽  
Qiang Cao ◽  
Yingjun Pan ◽  
Yang Zhang
Keyword(s):  
Mechanical Properties ◽  
Composite Coating ◽  
Laser Cladding ◽  
Microstructure And Mechanical Properties ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

scholarly journals Microstructure and Mechanical Properties Investigation of Ni35A-TiC Composite Coating Deposited on AISI 1045 Steel by Laser Cladding

2021 ◽  
Author(s):  
Hao Zhang ◽  
Guofu Lian ◽  
Qiang Cao ◽  
Yingjun Pan ◽  
Yang Zhang
Keyword(s):  
Wear Resistance ◽  
Composite Coating ◽  
Laser Cladding ◽  
Coefficient Of Friction ◽  
Laser Energy ◽  
Steel Substrate ◽  
Micro Hardness ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

Abstract In this research, the TiC-Ni35A composite coating was fabricated on the AISI 1045 steel substrate by laser cladding process. The cross-sectional morphology, microstructure, micro-hardness, and wear resistance of coatings obtained under different laser energy densities (E) and TiC powder ratios (PR) were analyzed. According to the results, all the coating had a reliable metallurgical bonding with the AISI 1045 steel substrate. The X-ray diffraction (XRD) analysis revealed that the coating phases were Ni and TiC. The average microhardness of the Ni35A-80wt.% TiC coating reached up to 75.12 HRC. The minimum coefficient of friction of the composite coating was only about 30% of the AISI 1045 substrate. The wear form was mainly adhesive wear when altering the TiC powder ratios, while the wear form also contained abrasion wear under different energy densities. The ability of decomposition and re-nucleation of TiC was significantly improved with the increase of laser energy densities and the decrease of TiC powder ratios. The micro-hardness, wear resistance, and coefficient of friction of the composite coating were improved because of the TiC strengthening phase particles. Compared with the AISI 1045 steel substrate, the micro-hardness and wear resistance of the composite coating was increased by 5.29 times and 6.26 times, respectively.

Wear resistance of laser cladding Fe50Cr40Si10 coating on AISI 1045 steel in elevated temperature

2021 ◽  
Vol 33 (4) ◽  
pp. 042038
Author(s):  
Rucheng Ma ◽  
Yongliang Gui ◽  
Wenyou Ma ◽  
Tieyu Qin ◽  
Zhaoyang Deng ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Elevated Temperature ◽  
Laser Cladding ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

Mechanical Properties of AISI 1045 Steel Subjected to Combined Loads of Tension and Torsion

2018 ◽  
Vol 42 (4) ◽  
pp. 393-406 ◽  
Author(s):  
G. Zhao ◽  
L. Liu ◽  
D. Wang ◽  
J. Guo ◽  
W. Chen
Keyword(s):  
Mechanical Properties ◽  
Combined Loads ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

The microstructure and mechanical properties of Co/YCF102 composite coating

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Wenchao Xi ◽  
Boxue Song ◽  
Jinlong Dong ◽  
Tianqi Zhang ◽  
Tianbiao Yu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Composite Coating ◽  
Laser Cladding ◽  
Machine Tools ◽  
Base Material ◽  
Mixed Powder ◽  
Content Type ◽  
High Microhardness ◽  
Aisi 1045

Purpose Laser cladding has been used in the field of repairing damaged parts of machine tools due to its advantages of less processing restrictions and easy formation of a good metallurgical bond with the base material. However, the mechanical properties of the coating sometimes cannot meet the process requirements. Therefore, the purpose of this paper is to prepare coatings with high microhardness and flexural strength. Design/methodology/approach The YCF102 alloy powder was mixed with different contents of Co and tested for laser cladding on AISI 1045 substrate under the same process parameters. The main phase composition of the coating was revealed by the XRD results. The main chemical composition of the coating was determined by the SEM and EDS results. In addition, the effect of Co content on the microstructure, microhardness and flexural strength of the coatings was investigated. Findings The results show that when the Co content is 2 wt% and 4 wt%, Co does not form compounds with other elements, but is uniformly distributed in the coating. And when the Co content is 6 wt% and 8 wt%, the Co reacts with Fe in the coating and generates Co3Fe7 in situ. The increase in Co did not result in a monotonic change in microhardness, but significantly improved the flexural strength and the flatness of the microstructure of the coating. When the Co content of the mixed powder is 8 wt%, the coating has high microhardness and flexural strength. Originality/value Co/YCF102 composite coating with high microhardness and flexural strength was prepared. This paper provides a theoretical and practical basis for research in the area of repairing damaged parts of machine tools by laser cladding.

Effect of Different Particles Distribution on Microstructure and Corrosion Resistance of Nickel-Base Laser Cladding Coatings

2011 ◽  
Vol 291-294 ◽  
pp. 2983-2986
Author(s):  
Yang Xiao Lu Cao ◽  
Ming Xing Ma ◽  
Qi Wen Wu ◽  
Xiao Yang Ye ◽  
Wen Jin Liu ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Laser Cladding ◽  
Distribution Density ◽  
Particle Distribution ◽  
Area Ratio ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
Base Composite ◽  
Nickel Base ◽  
1045 Steel

Nickel-base composite coating reinforced by in situ synthesized multiple carbide particles were fabricated on AISI 1045 steel surface by pre-placed laser cladding. Nowadays most researches focus on the wear resistance. This study mainly focuses on the corrosion resistance property. Investigate the effect of different particle distribution on corrosion resistance of the cladding layers by controlling the amount of Zr, Ti and WC. The microstructure and electrochemical property are analyzed by scanning electron microscope (SEM) and electrochemical test equipment. The maximal particle distribution density and particle area ratio appear when Zr:Ti:WC=1:2:2. The polarization curves show that in 0.05mol/L HCl electrolyte the coatings’ corrosion resistance have positive correlation with particles distribution density and particles area ratio, and all the coatings are significantly better than 314L stainless steel in corrosion resistance.

scholarly journals Effect of Boriding on the Mechanical Properties of AISI 1045 Steel

2009 ◽  
Vol 65 ◽  
pp. 63-68 ◽  
Author(s):  
G. Rodríguez-Castro ◽  
Ivan Campos-Silva ◽  
José Martínez-Trinidad ◽  
U. Figueroa-López ◽  
D. Meléndez-Morales ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fatigue Strength ◽  
Boride Layer ◽  
High Porosity ◽  
Coating Failure ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
Rotating Bending ◽  
Boriding Process ◽  
1045 Steel

Some mechanical properties of AISI 1045 borided steels were estimated in the present work. The boriding process was carried out by the powder pack method at 950°C with 8 h of treatment. The fatigue strength on borided notched specimens was evaluated with rotating bending tests (R=1) considering a stress concentration factor (Kt) of 2.53. Likewise, the presence of residual stresses in boride layers was established by the XRD technique. The Daimler-Benz Rockwell C test was used, also, to estimate the strength adhesion of the coated system. The results show a decrease in the fatigue strength of AISI borided steels due to the presence of high porosity in the layers. Finally, the Rockwell-C adhesion test showed no coating failure for the boride layer.

In Situ Synthesis of TiC-TiB2 Reinforced Fe-Based Composite Coating by Laser Cladding

2013 ◽  
Vol 341-342 ◽  
pp. 162-165 ◽  
Author(s):  
Fang Zhou ◽  
Hui Yao Yang ◽  
Liang Hua He
Keyword(s):  
Mechanical Properties ◽  
Composite Coating ◽  
Laser Cladding ◽  
Microstructure And Mechanical Properties

A Fe-based composite coating reinforced with in situ synthesized TiC-TiB2particles was successfully fabricated on Q235A by laser cladding with mixture powder of TiO2, Al, B4C, C and Fe55 as precursors. The microstructure and mechanical properties of coating were investigated. The results show that the main phases of coating are TiB2, TiC, (Fe,Cr)7C3and α-Fe. TiC particles show the shape of block, TiB2particles exhibit the shape of strip. Compared with the Q235A, the microhardness of the composite coating improved drastically.

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