Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Bokůvka Otakar"'
Publikováno v:
Production Engineering Archives, Vol 30, Iss 3, Pp 406-412 (2024)
This research examines the technological processes of applying CrN coating on low-alloy tool steel, focusing on the comparison between hardening-tempering-coating (HTC) and hardening-coating (HC) processes, with an emphasis on energy savings. The stu
Externí odkaz:
https://doaj.org/article/6a848ad39abb4602a1efbbf5b17e7d64
Publikováno v:
Production Engineering Archives, Vol 28, Iss 3, Pp 241-245 (2022)
Influence of shot peening on the wear behaviour of medium carbon, C55 steel was experimentally verified. Experimental work included determination of the chemical composition, heat treatment, microstructure evaluation, mechanical properties measuremen
Externí odkaz:
https://doaj.org/article/f3dcb8a20ea6400f9d3aae023ab09c1d
Publikováno v:
Production Engineering Archives, Vol 26, Iss 3, Pp 78-83 (2020)
The tribological properties of the nitride layer applied to the low-alloyed steel were investigated in this research. Experimental work included determination if the chemical composition, wear resistance, Rockwell, Vickers and nano-indentation tests,
Externí odkaz:
https://doaj.org/article/bd32bd2ecaf346ada10a493373518e8a
Publikováno v:
Production Engineering Archives, Vol 26, Iss 2, Pp 41-44 (2020)
High strength low alloy (HSLA) steels are a new generation of plain carbon steels with significantly improved mechanical properties while maintaining good weldability with common commercial techniques. Residual stress and microstructural analysis of
Externí odkaz:
https://doaj.org/article/68132ec296664127b110ce52c9decc0e
Publikováno v:
Production Engineering Archives, Vol 24, Iss 24, Pp 25-28 (2019)
In this paper the authors introduce their own selected experimental results in the field of the investigation of fatigue resistance of structural steels. The experiments were carried out on the nine structural steels including high strength steels, D
Externí odkaz:
https://doaj.org/article/8a825c2ece2e46cdbb88657bd404f77d
Publikováno v:
Production Engineering Archives, Vol 19, Iss 19, Pp 22-25 (2018)
Aim of this paper is to present the properties of carbon preforms for the production of biomorphic composites. Carbon samples were obtained through pyrolysis of paulownia wood, replicating the microstructure of the cellulosic precursor. Many characte
Externí odkaz:
https://doaj.org/article/74aa6b3312f5418b9aa98ba6e907197d
Publikováno v:
Production Engineering Archives, Vol 15, Iss 15, Pp 15-18 (2017)
Nickel base superalloys are hi-tech materials intended for high temperature applications. This property owns a complex microstructure formed by matrix of Ni and variety of precipitates. The type, form and the amount of these phases significantly affe
Externí odkaz:
https://doaj.org/article/9c243015cca44ed9bbbfe5468f28b4f2
Publikováno v:
Production Engineering Archives, Vol 19, Iss 19, Pp 3-5 (2018)
In this paper, the authors publish their own experimental results of the examination of the different holes (milled, drilled and drilled + shot peened) on the fatigue lifetime of 20MnV6 steel. The experiments were carried out at low-frequency loading
Externí odkaz:
https://doaj.org/article/bf6319888e164663800bf7bdd003f230
Publikováno v:
MATEC Web of Conferences, Vol 157, p 05011 (2018)
Austenitic stainless steels are the wide-spread materials, used mainly in the power industry. In that kind of engineering application, structural parts of rotating elements reach during their lifetime very high numbers of loading cycles, exceeding 10
Externí odkaz:
https://doaj.org/article/6b88488752fe403a936514b561ebb9bb
Publikováno v:
MATEC Web of Conferences, Vol 157, p 05019 (2018)
In this work, there are published results about fatigue endurance of ductile cast iron obtained at high-frequency sinusoidal cyclic push-pull loading in the ultra-high cycle fatigue region. The main attention was focused on the fatigue lifetime data
Externí odkaz:
https://doaj.org/article/fb1988cff2b04394b1acdc22b1a8fa58