Zobrazeno 1 - 10
of 298
pro vyhledávání: '"M. Sroka"'
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 69, Iss No 3, Pp 1241-1244 (2024)
This study presents the results of microstructure and hardness tests of a homogenous welded joint made of Super 304H stainless steel after 1000 h of ageing at the temperature of 700 and 750°C. Super 304H steel is commonly used for high-pressure elem
Externí odkaz:
https://doaj.org/article/1c872aad4103400c99f914347270dedb
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 67, Iss No 2, Pp 487-493 (2022)
The S304H steel is used in the construction of pressure components of boilers with supercritical operating parameters. The paper presents the results of the research on the microstructure after ageing for 20,000 hours at 650 and 700°C. The microstru
Externí odkaz:
https://doaj.org/article/17fb23ea19b141eba129528ffaf66b65
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 67, Iss No 1, Pp 175-180 (2022)
The 22Cr25NiWCoCu austenitic stainless steel was developed by AB Sandvik Material Technology in Sweden. Due to its high creep strength and good corrosion resistance, this material is well suited for use in superheaters in advanced coal-fired power bo
Externí odkaz:
https://doaj.org/article/8d283faedba746a8953b4195cf53fdfb
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 69, Iss No 2, Pp 705-709 (2019)
P92 steel is a modern martensitic heat-resistant steel currently used for seamless products for pressure equipment operating in supercritical operating parameters. The paper presents the results of a study on the strength properties and structure of
Externí odkaz:
https://doaj.org/article/8b818dcf595d4decbf96bed38a5d4e5a
Publikováno v:
Metalurgija, Vol 56, Iss 3-4, Pp 329-332 (2017)
The presented investigation results were carried out on two binary aluminium-magnesium alloys. The article focuses on the influence of heat treatment conditions on the precipitation response of AlMg3 and AlMg5 aluminium alloy, microstructure evolutio
Externí odkaz:
https://doaj.org/article/44a2bf77956e47859593bfcc1b2812c3
Publikováno v:
Metalurgija, Vol 56, Iss 3-4, Pp 333-336 (2017)
This paper presents the results of investigations on microstructure changes after the long-term impact of temperature. The microstructure investigations were carried out by light microscopy and scanning electron microscopy. The qualitative and quanti
Externí odkaz:
https://doaj.org/article/3769453ac0884c7480e54f484816774a
Publikováno v:
Metalurgija, Vol 56, Iss 3-4, Pp 422-424 (2017)
The purpose of the work is computer simulation of the aluminium extrusion process using the Finite elements method (FEM). The impact of the speed of a punch falling on the material in the aluminium extrusion process was investigated. It was found tha
Externí odkaz:
https://doaj.org/article/e4aca3432eab4144aac945ae123e9c38
Publikováno v:
Metalurgija, Vol 56, Iss 3-4, Pp 419-421 (2017)
The purpose of the work is to present the results of investigations into the structure and properties of sintered carbides with deposited wear resistant coatings after a tribological test carried out with the method of combined examination of abrasio
Externí odkaz:
https://doaj.org/article/bc6103e5c4224e179ed56726ae2c1475
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 63, Iss No 2 (2018)
This paper presents the method for determination of the time of further safe service for welded joints of boiler components after exceeding the design work time. The evaluation of the life of the parent material and its welded joints was performed. M
Externí odkaz:
https://doaj.org/article/d58aa5ab15d5477bbd9a0e0ac379f4b3
Publikováno v:
Archives of Civil and Mechanical Engineering. 23
A newly developed heat-resistant austenitic steel, Sanicro 25 is currently considered the leading candidate material for an advanced ultra-supercritical installation. The test material was subjected to long-term ageing (up to 30,000 h) at 700 and 750