Characterisation of EN 1.4136 stainless steel heat-treated in solar furnace

Milosan, Ioan; Cristea, Daniel; Voiculescu, Ionelia; Pop, Mihai Alin; Balat‐Pichelin, Marianne; Predescu, Andra Mihaela; Bogatu, Cristina; Bedő, Tibor; Berbecaru, Andrei-Constantin; Geantă, Victor; Gabor, Camelia; Isac, Luminita; Dumitrascu, Dorin-Ion; Oancea, Gheorghe

doi:10.1007/s00170-018-3153-9

Cited by 9 publications

(8 citation statements)

References 22 publications

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“…Concentrated solar energy used for heat treatment of metals exhibits increased interest in recent years, but only recently has been dedicated to industrial applications [9][10][11][12]. Certain treatments performed using solar energy allow the reduction or removal of corrosion resistance reduction compounds, such as sigma (σ) and delta-ferrite (δ) [5,13,14], also contributing to the reduction of friction [15]. To emphasize the special effects of the solar energy treatments, heat treatments were performed in electric furnaces using the same values of the process parameters.…”

Section: Introductionmentioning

confidence: 99%

“…This behavior may be due to the much higher heating rates obtained using the solar installation, the absence of direct interaction between the alloy and the furnace hearth, and the reduced dimensions of the treated samples [14]. The disadvantages of the solar energy treatment method are related to higher costs (expensive installations), geographical positioning (they should be located only in areas where solar irradiation is intense), and weather conditions [15].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Heat-Treated AISI 316 Stainless Steel in Solar Furnaces to Be Used as Possible Implant Material

et al. 2020

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The appropriate selection of implant materials is very important for the long-term success of the implants. A modified composition of AISI 316 stainless steel was treated using solar energy in a vertical axis solar furnace and it was subjected to a hyper-hardening treatment at a 1050 °C austenitizing temperature with a rapid cooling in cold water followed by three variants of tempering (150, 250, and 350 °C). After the heat treatment, the samples were analyzed in terms of hardness, microstructure (performed by scanning electron microscopy), and corrosion resistance. The electrochemical measurements were performed by potentiodynamic and electrochemical impedance spectroscopy in liquids that simulate biological fluids (NaCl 0.9% and Ringer’s solution). Different corrosion behaviors according to the heat treatment type have been observed and a passivation layer has formed on some of the heat-treated samples. The samples, heat-treated by immersion quenching, exhibit a significantly improved pitting corrosion resistance. The subsequent heat treatments, like tempering at 350 °C after quenching, also promote low corrosion rates. The heat treatments performed using solar energy applied on stainless steel can lead to good corrosion behavior and can be recommended as unconventional thermal processing of biocompatible materials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of Heat-Treated AISI 316 Stainless Steel in Solar Furnaces to Be Used as Possible Implant Material

et al. 2020

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“…The construction and commissioning of high and medium power concentrated solar ovens since 1950, but especially after 1970, (when the large 1MW solar furnace was put into use in Odeillo, France) opened new directions for research on the processing possibilities of materials with high energy flows and very high temperatures [1,[3][4][5][6][7][8][9][10][11][12][13][14][15][16].…”

Section: The Object Of the Papermentioning

confidence: 99%

“…For example, resistance to corrosion, wear, refractoriness, structural and dimensional stability to temperature variations, properties necessary for products working under special conditions, in the chemical industry, in biomedicine, in aeronautics, in the atomic and nuclear industry, etc. [8,15,16].…”

Section: Intensification Of Microstructural Transformations Under the Effect Of Photonic Impactmentioning

confidence: 99%

Advantages and Limitations Regarding the Processing of Materials in Concentrated Energy Solar Furnaces

Ciobanu

Monescu

2021

RECENT

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Solar energy is already widely used for water heating and electricity production. Attempts to process materials with solar energy have been made since the 17th and18th centuries. The construction of high and medium power concentrated solar furnaces in the late 20th century opened new perspectives in this direction. Lately, the possibilities of processing materials by using this energy are being researched more and more, together with the construction principle and the features of the operation of solar furnace with concentrated energy. Based on the knowledge gained in research conducted worldwide by various authors, including the University of Transilvania in Brasov, an analysis is made of the advantages and limitations of various processing of materials in such ovens, taking into account the possibilities of application at the industrial level.

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“…The furnace is capable of focusing the direct solar radiation and attains a peak flux of 7000 kW/m 2 (Rodriguez et al, 2016). Milosan et al (2019) performed the hyper-hardening heat treatment of EN 1.4136 stainless steel for its characterization by means of concentrated solar energy in the solar furnace of PROMES-CNRS. They concluded that the hardness value of a specimen is increased by about 55%, and the average wear rates decreased compared to the base material.…”

Section: Innovative Application: Ovar Based Scfmentioning

confidence: 99%

Open volumetric air receiver: An innovative application and a major challenge

Kumar

Upadhyay²,

Singh

et al. 2021

WIREs Energy & Environment

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The open volumetric air receiver (OVAR) based systems can be used for metals processing operation, such as, the heat treatment of aluminum. Some important aspects, related to the technology adaptation, are (a) the selection of receiver design, (b) the integration of an application, based on hot air, with an OVAR, and (c) mitigation of dust deposition in the porous absorber of an OVAR. Therefore, the presented aspects are (a) literature review on the porous absorbers for OVARs, (b) literature review on solar furnace, and an innovative OVAR-based solar convective furnace (SCF) for the heat treatment of aluminum, and (c) mechanism of transport and deposition of dust in an absorber pore. These reveal that (a) the design improvements are required, to enhance the thermal efficiency of OVARs, for an input power to air mass flow rate ratio exceeding 900 kJ/kg, (b) the SCF system, based on OVAR, is plausible, and (c) the dust deposition in an absorber pore may be mitigated. The findings will be useful for deployment and operation of the OVAR based systems in arid deserts.

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Characterisation of EN 1.4136 stainless steel heat-treated in solar furnace

Cited by 9 publications

References 22 publications

Evaluation of Heat-Treated AISI 316 Stainless Steel in Solar Furnaces to Be Used as Possible Implant Material

Evaluation of Heat-Treated AISI 316 Stainless Steel in Solar Furnaces to Be Used as Possible Implant Material

Advantages and Limitations Regarding the Processing of Materials in Concentrated Energy Solar Furnaces

Open volumetric air receiver: An innovative application and a major challenge

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