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| Description
| - Design of technology for production of new material involves many research and development activities. The presented work is part of the proposal of chemical composition and technology for production of high alloyed steel. The proposal is realized with respect to the subsequent possibilities of material forming and to the requirements of potential customers. Specifically the steels with austenitic and ferritic structure, so called super-duplex stainless steels (SDSS) are studied. SDSS are more resistant to corrosion than austenitic steels. The proposal of production of ingot from the steel grade 1.4477 was prepared, followed by verification in the company MATERIAL & METALLURGICAL RESEARCH Ltd. (MMR). The ingot was then forged in conformity with the proposal at VÍTKOVICE HEAVY MACHINERY (VHM) into three rods. The forged rods with diameters of 250, 300 and especially 150 mm were after heat treatment subjected to mechanical tests. They were evaluated by hardness test, tensile strength and Charpy impact test to determine the transit temperature. Material was subjected to physical simulation of forming on the research facility Setaram for determination of the plastic properties important for the forging. Material was further subjected to tests of resistance to corrosion under effect of chloride ions and resistance to inter-crystalline corrosion. The research included also proposal of production of the second super-duplex stainless steel grade 1.4501 with verification of production of ingot in conditions of the company MMR. Both above mentioned steel grades contain high proportion of nitrogen, which significantly influences the structural, mechanical and corrosion properties. This influence was proved during the evaluation of the grade 1.4477 and obtained results are described in this paper. The work contains also findings from the bibliographic analysis of heat treatment of the SDSS as an important final operation of processing of this material.
- Design of technology for production of new material involves many research and development activities. The presented work is part of the proposal of chemical composition and technology for production of high alloyed steel. The proposal is realized with respect to the subsequent possibilities of material forming and to the requirements of potential customers. Specifically the steels with austenitic and ferritic structure, so called super-duplex stainless steels (SDSS) are studied. SDSS are more resistant to corrosion than austenitic steels. The proposal of production of ingot from the steel grade 1.4477 was prepared, followed by verification in the company MATERIAL & METALLURGICAL RESEARCH Ltd. (MMR). The ingot was then forged in conformity with the proposal at VÍTKOVICE HEAVY MACHINERY (VHM) into three rods. The forged rods with diameters of 250, 300 and especially 150 mm were after heat treatment subjected to mechanical tests. They were evaluated by hardness test, tensile strength and Charpy impact test to determine the transit temperature. Material was subjected to physical simulation of forming on the research facility Setaram for determination of the plastic properties important for the forging. Material was further subjected to tests of resistance to corrosion under effect of chloride ions and resistance to inter-crystalline corrosion. The research included also proposal of production of the second super-duplex stainless steel grade 1.4501 with verification of production of ingot in conditions of the company MMR. Both above mentioned steel grades contain high proportion of nitrogen, which significantly influences the structural, mechanical and corrosion properties. This influence was proved during the evaluation of the grade 1.4477 and obtained results are described in this paper. The work contains also findings from the bibliographic analysis of heat treatment of the SDSS as an important final operation of processing of this material. (en)
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| Title
| - Evaluation of production and properties of the forged bar made of super-duplex austenitic-feritic steel
- Evaluation of production and properties of the forged bar made of super-duplex austenitic-feritic steel (en)
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| skos:prefLabel
| - Evaluation of production and properties of the forged bar made of super-duplex austenitic-feritic steel
- Evaluation of production and properties of the forged bar made of super-duplex austenitic-feritic steel (en)
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| skos:notation
| - RIV/25877950:_____/11:#0000028!RIV13-MPO-25877950
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/25877950:_____/11:#0000028
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - super duplex steel; production technology; corrosion; forging; forged bar (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - METAL 2011: 20th Anniversary International Conference Metallurgy and Materials
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Machovčák, Pavel
- Kurka, V.
- Michalek, K.
- Unucka, P.
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open...ain/vavai/riv/wos
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| http://linked.open.../riv/zahajeniAkce
| |
| number of pages
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| http://purl.org/ne...btex#hasPublisher
| |
| https://schema.org/isbn
| |
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