Electropulsed steels

Author: uwak

August undefined, 2024

WebFig. 2 exhibited the morphology evolution and distribution of MnS inclusions in the electropulsed steel (sample A1) with the current density of 1.6×106 A m−2 and pulse duration of 60 µs. The ... WebNov 30, 2024 · Novel steel of Fe-0.81C-1.9Mn-1.48Si-0.27Mo-0.95Ni-1.43Co-0.79Al composition was austenitized at 930 °C and isothermally treated at 240 °C for different …

Removal of MnS inclusions in molten steel using electropulsing

WebMay 1, 2024 · The electropulse was generated by a self-made EPT equipment with the transformer circuit, which could generate AC sinusoidal pulse current with 50 Hz frequency. In this study, the testing samples along the RD and TD were connected with two copper electrodes from both ends to form a current circuit. WebHSLA steels. Podcasts: 1- I discussed the potential applications of machine-learning based methods in additive ... Furthermore, the electropulsed sample benefits from refined grain size. This is thought to be due to the electropulse-enhanced nucleation rate. Tensile testing has been carried out to compare the properties of electropulsed sample ... muh365dz マキタ

The stability of precipitates under electropulsing in 316L …

WebDec 1, 2014 · Very recently, electropulsing treatment (EPT), a non-equilibrium instantaneous method, has been applied to modulate the microstructure and mechanical properties of traditional metals with... WebElectropulsed-induced crystal rotation at ambient temperature means that the treatments can be very efficient in terms of cost and energy consumption. References muh467dz モーター

Electropulse-induced laminated structures in a ferritic-pearlitic ...

Electropulsed steels

WebIn the case of electropulsed steel, the particles are dispersed with the varied size of 25−105 nm, and its distribution mainly concentrates in 25 nm (Fig 3 (h)). Furthermore, … WebApr 1, 2024 · Prestrained at 5% and 15% duplex stainless steel UNS S32750 specimens have been subjected to electropulsing treatments with current density of 100 A/mm2 and 200 A/mm2 and 100 and 500 pulses for each current density value. Corrosion tests, X-ray diffraction, microhardness and residual stresses were collected before and after the … muh407dsf バッテリーWebElectropulsing of pearlitic steels. Electropulsing is a process characterised by the application of short duration (~100μs) electrical current pulses. The process is claimed to be capable of stimulating microstructure change in a variety of metals at low temperatures and energy levels. In this thesis, electropulsing is applied to examine its ... muhoyo ログインボーナス

"WebCommercial steel wires of chemical composition Fe-0.8C-0.2Si-0.5Mn (in weight %) were received, heat treated to form full pearlitic microstructure, and then cold-drawn to a true strain of 1.61 and ... " - Electropulsed steels

Electropulsed steels

Electropulse-induced laminated structures in a ferritic …

WebDec 1, 2014 · works on electropulsed steels [14,15]. Electropulsing chang es the free-energy difference. 6 W.J. Lu et al. Downloaded by [Imperial College London Library] at … WebAustenite reversion during tempering of a Fe–13.6 Cr–0.44 C (wt.%) martensite results in an ultra-high-strength ferritic stainless steel with excellent ductility. The austenite reversion mechanism is coupled to the kinetic freezing of carbon during low-temperature partitioning at the interfaces between martensite and retained austenite and ...

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WebFeb 1, 2015 · Steels consisting of pearlite are extensively used in various engineering and commercial applications since they possess a good combination of strength and ductility … WebSep 15, 2015 · Niobium is an important alloying element in steels. In the present work an effort has been made to investigate the effect of electropulsing on the niobium carbide (NbC) at an elevated temperature (800 °C). The results show that the electropulsing treatment can generate an evenly distributed NbC by decreasing the kinetics barriers for precipitation. It …

WebMay 1, 2024 · Fig. 2 shows the one-dimensional element profile in the electropulsed RD sample. While black layers reveal only Mo segregation, white layers are decorated by … Websteel fabrication techniques applied in large scale productions, e.g. electromagnetic stirring, bubbling and filtration [4-7]. However, these conventional methods are not efficient in ... MnS inclusions was completely different in the electropulsed steel, as shown in Figure 2 and 3. Fig. 2(a) and 2(b) are obtained from the same sample but with ...

WebJul 1, 2014 · The morphology, size and distribution evolutions of MnS inclusions in molten steel were investigated by electropulsing. The results show that angular MnS inclusions distributed randomly in the... WebElectropulsing of pearlitic steels. Electropulsing is a process characterised by the application of short duration (~100μs) electrical current pulses. The process is claimed to …

WebJan 30, 2024 · The paper on electropulsing, published in this issue, emphasises instead the influence of electrical effects on the mobility of carbon in the steel [17Qin R, Luo Y, Elliott-Bowman B, et al. Fabrication of nanostructured pearlite steel wires using electropulsing.

WebThis work demonstrates the application of designed electropulsing to pearlitic steel, transformation induced plasticity steel, austenite stainless steel and clean steel in order to generate novel microstructures that are difficult to achieve by other conventional thermomechanical processes. muichiga idカードホルダーWebAug 15, 2016 · (a) An electropulsed Fe-26Mn-9Al-0.75C sample after cold rolling to 70% reduction. (b) SEM micrograph shows the spheroidized κ-carbide particle with 250 nm average diameter in an electropulsed Fe-26Mn-9Al-0.75C sample. TEM analysis for Fe-26Mn-9Al-0.75C samples before and after electropulsing treatment is presented in Fig. 3. muh407dz バッテリーWebFeb 14, 2024 · The electropulse was generated by an Avtech AV-108F-B-P pulse generator which converted the direct current into pulses. The direct current power source has an output power of 80 watts and output... muh450 マキタ