scholarly journals Effect of laser-discrete-quenching on bonding properties of electroplated grinding wheel with AISI 1045 steel substrate and nickel bond

2020 ◽  
Author(s):  
Cong MAO ◽  
Peihao CAI ◽  
Yongle HU ◽  
Yujie ZHONG ◽  
Jishuang WEI ◽  
...  
Keyword(s):  
Steel Substrate ◽  
Grinding Wheel ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
Bonding Properties ◽  
1045 Steel

Microstructure and Properties of In Situ Synthesized Composite Coating by Tungsten Inert Gas Cladding

2011 ◽  
Vol 314-316 ◽  
pp. 296-299 ◽  
Author(s):  
Li Ping Zhao ◽  
Zong De Liu ◽  
Bin Li
Keyword(s):  
Ceramic Coating ◽  
Steel Substrate ◽  
Composite Coatings ◽  
Inert Gas ◽  
Maximum Hardness ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel ◽  
Particulate Reinforced

Ceramic particulate-reinforced Ni-based composite coatings are commonly used in the industry for protection against wear. With an aim to investigate the properties of this coating, ceramic coating reinforced by in-situ synthesized (Ti,Cr,Nb,Mo)xCy particles was prepared on AISI 1045 steel substrate by tungsten insert gas cladding. The microstructure and microhardness of the coatings were analyzed by scanning electron microscopy (SEM) and microhardness tester. The results showed that excellent bonding between the coating and the AISI 1045 steel substrate was uniform, continuous and almost defect-free. The maximum hardness value achieved 1013HV, which is about 5 times compared to that of the AISI 1045 steel substrate.

scholarly journals Hard Anodization Film on Carbon Steel Surface by Thermal Spray and Anodization Methods

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3580
Author(s):  
Pao-Chang Chiang ◽  
Chih-Wei Chen ◽  
Fa-Ta Tsai ◽  
Chung-Kwei Lin ◽  
Chien-Chon Chen
Keyword(s):  
Corrosion Resistance ◽  
Carbon Steel ◽  
Steel Surface ◽  
Steel Substrate ◽  
Substrate Surface ◽  
Aluminum Film ◽  
Medium Carbon Steel ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

In this paper, we used two mass-produced industrial technologies, namely, thermal spraying and anodization methods, to enhance the surface characteristics of AISI 1045 medium carbon steel for use in special environments or products. The anodic film can effectively improve the surface properties of carbon steel. A sequence of treatments of the carbon steel substrate surface that consist of sandblasting, spraying the aluminum film, annealing, hot rolling, cleaning, grinding, and polishing can increase the quality of the anodized film. This paper proposes an anodization process for the surface of carbon steel to increase the corrosion resistance, hardness, color diversification, and electrical resistance. The resulting surface improves the hardness (from 170 HV to 524 HV), surface roughness (from 1.26 to 0.15 μm), coloring (from metal color to various colors), and corrosion resistance (from rusty to corrosion resistant). The electrochemical corrosion studies showed that the AISI 1045 steel surface with a hard anodized film had a lower corrosion current density of 10−5.9 A/cm2 and a higher impedance of 9000 ohm than those of naked AISI 1045 steel (10−4.2 A/cm2 and 150 ohm) in HCl gas.

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.

Microstructure and Grain Abrasion Properties of (Ti,W)C-Ni Cermet Cladding Layers Prepared by Tungsten Inert Gas Cladding

2011 ◽  
Vol 80-81 ◽  
pp. 133-136
Author(s):  
Li Ping Zhao ◽  
Zong De Liu ◽  
Bin Li
Keyword(s):  
Abrasion Resistance ◽  
Steel Substrate ◽  
Inert Gas ◽  
High Microhardness ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel ◽  
Cladding Layers ◽  
Scanning Electron

In this work, tungsten inert gas cladding (TIG), is utilized to in-situ synthesize the (Ti,W)C based cermet cladding layers. The microstructure and microhardness of the cladding layers were analyzed by scanning electron microscopy (SEM) and microhardness tester. The grain abrasion resistance of the cladding layers is also discussed. The grain abrasion resistance of the coating is also discussed. The results showed that excellent bonding between the coating and the AISI 1045 steel substrate was uniform, continuous and almost defect-free. (Ti,W)C cladding layers have compact microstructure and high microhardness. The grain abrasion resistance of the coating is attributed by the compact microstructure.

Fuzzy Modeling to Simulate Surface Roughness in CNC Turning of AISI 1045 Steel

2011 ◽  
Vol 486 ◽  
pp. 262-265
Author(s):  
Amit Kohli ◽  
Mudit Sood ◽  
Anhad Singh Chawla
Keyword(s):  
Experimental Data ◽  
Surface Roughness ◽  
Process Parameters ◽  
Fuzzy Model ◽  
Fuzzy Modeling ◽  
Cnc Machine ◽  
Model Based ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

The objective of the present work is to simulate surface roughness in Computer Numerical Controlled (CNC) machine by Fuzzy Modeling of AISI 1045 Steel. To develop the fuzzy model; cutting depth, feed rate and speed are taken as input process parameters. The predicted results are compared with reliable set of experimental data for the validation of fuzzy model. Based upon reliable set of experimental data by Response Surface Methodology twenty fuzzy controlled rules using triangular membership function are constructed. By intelligent model based design and control of CNC process parameters, we can enhance the product quality, decrease the product cost and maintain the competitive position of steel.

scholarly journals Evaluation of the characteristics of an AISI 1045 steel quenched in different concentration of polymer solutions of polyvinylpyrrolidone

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Eduardo da Rosa Vieira ◽  
Luciano Volcanoglo Biehl ◽  
Jorge Luis Braz Medeiros ◽  
Vagner Machado Costa ◽  
Rodrigo Jorge Macedo
Keyword(s):  
Microstructural Characterization ◽  
Exchange Capacity ◽  
X Ray Diffraction ◽  
Thermal Exchange ◽  
The Core ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
Quench Hardening ◽  
Polymeric Solutions ◽  
1045 Steel

AbstractQuench hardening aims at the microstructural transformation of steels in order to improve hardness and mechanical strength. The aim phase is, in most cases, the martensite. It is necessary to heat the material until it obtains its austenitization and quenching by immersion in a fluid. Currently, it is common to use watery polymeric solutions in this procedure. These fluids, which are the mixture of polymers in water, vary their thermal exchange capacity depending on the concentrations applied. The increase in concentration minimizes the removal of heat from the part, reducing the formation capacity of martensite, and developing a lower hardness and strong steel. In this work, microstructural characteristics and properties of AISI 1045 steel quenched in solutions based on polyvinylpyrrolidone (PVP) in 10, 15, 20, and 25% concentration were evaluated. The microstructural characterization quantified the percentage of the phases in each concentration, demonstrating a reduction of martensite as the concentrations were high. The investigation of the samples by x-ray diffraction confirmed the absence of austenite retained in the material. Furthermore, a microhardness scale between the core and the surface was constructed, in which a reduction gradient of the indices of this property towards the core of the sample was evidenced.

scholarly journals Correction and accuracy improvement of non-parallel shear zone model

2018 ◽  
Vol 207 ◽  
pp. 02002
Author(s):  
Yaoke Wang ◽  
Meng Kou ◽  
Wei Ding ◽  
Huan Ma ◽  
Liangshan Xiong
Keyword(s):  
Experimental Data ◽  
Cutting Force ◽  
Shear Zone ◽  
Coordinate Transformation ◽  
Chip Thickness ◽  
Zone Model ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
Experimental Values ◽  
1045 Steel

When applying the non-parallel shear zone model to predict the cutting process parameters of carbon steel workpiece, it is found that there is a big error between the prediction results and the experimental values. And also, the former approach to obtain the relevant cutting parameters of the non-parallel shear zone model by applying coordinate transformation to the parallel shear zone model has a theoretical error – it erroneously regards the determinant (|J|) of the Jacobian matrix (J) in the coordinate transformation as a constant. The shape of the shear zone obtained when |J| is not constant is drew and it is found that the two boundaries of the shear zone are two slightly curved surfaces rather than two inclined planes. Also, the error between predicted values and experimental values of cutting force and cutting thrust is slightly smaller than that of constant |J|. A corrected model where |J| is a variable is proposed. Since the specific values of inclination of the shear zone (α, β), the thickness coefficient of the shear zone (as) and the constants related to the material (f0, p) are not given in the former work, a method to obtain the above-mentioned five constants by solving multivariable constrained optimization problem based on experimental data was also proposed; based on the obtained experimental data of AISI 1045 steel workpiece cutting force, cutting thrust, chip thickness, the results of five above-mentioned model constants are obtained. It is found that, compared with prediction from uncorrected model, the cutting force and cutting thrust of AISI 1045 steel predicted by the corrected model with the obtained constants has a better agreement with the experimental values obtained by Ivester.

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