Enhancing Strength of Nanolaminate 1045 Steel Prepared by Aluminothermic Reaction through Multiple Warm Rolling

2017 ◽  
Vol 89 (2) ◽  
pp. 1700304 ◽  
Author(s):  
Zhengning Li ◽  
Fuan Wei ◽  
Peiqing La ◽  
Jie Sheng
Keyword(s):  
Warm Rolling ◽  
Aluminothermic Reaction ◽  
1045 Steel

Effects of Processing Parameters on the Temperature Field of Melts in Aluminothermic Reaction to Prepare Bulk Nanocrystalline Fe3Al

2010 ◽  
Vol 148-149 ◽  
pp. 859-864
Author(s):  
Pei Qing La ◽  
Rui Jiao Lv ◽  
Xin Guo ◽  
Dan Zhang
Keyword(s):  
Cooling Rate ◽  
Processing Parameters ◽  
Substrate Thickness ◽  
Analysis Software ◽  
Element Analysis ◽  
Cooling Stage ◽  
Aluminothermic Reaction ◽  
The Finite Element Analysis ◽  
Bulk Nanocrystalline ◽  
1045 Steel

Making use of the finite element analysis software ANSYS, we calculated the effects of different processing parameters on temperature, cooling rate and superheating time of Fe3Al melt in aluminothermic reaction to prepare bulk Nanocrystalline Fe3Al. The results showed that, with the increase of substrate thickness and reduction of reactant’s quantity, cooling rate of the Fe3Al melt at the initial cooling stage became larger, while the melt purification became worse. With the increase of argon pressure, the Fe3Al melt cooled a little quicker. The cooling rate of melt cooled by glass substrate was lower than that of the melt cooled by 1045 steel and Cu substrate, while the melt purification became better. With the increase of Al2O3, Fe3Al diluents content, the cooling rate at the initial cooling stage became lower, and the melt purification became worse. The experiment verified that the calculated results were in good coincident with the experimental results.

Enhancement of Strength by Multiple Rolling at Room Temperature in the 1045 Steel Prepared by Aluminothermic Reaction

2019 ◽  
Vol 90 (5) ◽  
pp. 1800556
Author(s):  
Zhengning Li ◽  
Peiqing La ◽  
Jiqiang Ma ◽  
Xin Guo ◽  
Jie Sheng ◽  
...  
Keyword(s):  
Room Temperature ◽  
Aluminothermic Reaction ◽  
1045 Steel

scholarly journals Effect of multiple warm rolling on microstructure and mechanical properties of 304 stainless steel prepared by aluminothermic reaction

2020 ◽  
Vol 12 (5) ◽  
pp. 168781401985099 ◽  
Author(s):  
H Abdelrahim ◽  
HB Mohamed ◽  
Peiqing La ◽  
Wei Fuma ◽  
Fuling Ma ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Stainless Steel ◽  
Yield Strength ◽  
Stainless Steels ◽  
Warm Rolling ◽  
Thickness Reduction ◽  
304 Stainless Steel ◽  
Reaction Method ◽  
Aluminothermic Reaction

304 stainless steels were prepared by aluminothermic reaction method; first steels are annealed at 1000°C and then rolled at 700°C for different deformation. The microstructures evolution and mechanical properties were distinguished in details. It was found that the steel contains nanocrystalline/submicrocrystalline/microcrystalline austenite and submicrocrystalline ferrite. After rolling to a thickness reduction of 30%, 50%, and 70%, the mechanical properties of the rolled steels were substantially increased, as the deformation increased from 30% to 50%, the tensile strength increased from 650 to 1110 MPa, the yield strength increased from 400 to 665 MPa, and the elongation increased from 8% to 8.5%.

scholarly journals Enhancing Ductility of 1045 Nanoeutectic Steel Prepared by Aluminothermic Reaction through Annealing at 873 K

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Zhengning Li ◽  
Fuan Wei ◽  
Peiqing La ◽  
Hongding Wang ◽  
Yupeng Wei
Keyword(s):  
Electron Microscope ◽  
Annealing Time ◽  
Volume Fraction ◽  
Cast Steel ◽  
Lamellar Spacing ◽  
Ferrite Matrix ◽  
Aluminothermic Reaction ◽  
Transmission Electron ◽  
Nanocrystalline Ferrite ◽  
1045 Steel

The 1045 steel with lamellar spacing of pearlite in nanometer was prepared by aluminothermic reaction casting and annealed at 873 K (600°C) with different time. Microstructures of steels were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscope (TEM). Tensile properties of the steels were measured. The results showed that the lamellar spacing of the pearlite increased with the annealing time. It was found that the microstructure of steels consisted of nanocrystalline-ferrite matrix and laminar pearlite phase. The average grain sizes of the ferrite were 26.9, 27.0, 26.1, and 34.9 nm for the cast steel and samples annealed for 2, 4, and 6 h, respectively. As the annealing time increased, the volume fraction of the pearlite almost remained constant, while the laminar spacing of pearlite increased from 146 to 300 nm. The tensile and yield strength varied slightly; the elongation obviously improved. After annealing for 4 h, the elongation increased to be 33%, which was the reported highest value for the steel up to now and about twice of the conventional 1045 steel.

THE INFLUENCE OF SMALL DEFECTS ON THE FATIGUE LIMIT OF 1045 STEEL

2019 ◽  
Author(s):  
Daniel Oliveira ◽  
Artur Dias ◽  
Cainã Bemfica de Barros ◽  
Fábio Castro ◽  
Roberto Costa
Keyword(s):  
Fatigue Limit ◽  
1045 Steel

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.

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