Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Sten Johansson"'
Publikováno v:
Theoretical and Applied Mechanics Letters, Vol 4, Iss 4 (2014)
In this study, slow strain rate tensile testing at elevated temperature is used to evaluate the influence of temperature and strain rate on deformation behaviour in two different austenitic alloys. One austenitic stainless steel (AISI 316L) and one n
Externí odkaz:
https://doaj.org/article/708c9854a14e444e8f940a6c35b467b3
Publikováno v:
International Journal of Fatigue. 127:509-521
The increasing demands for efficiency and flexibility result in more severe operating conditions for the materials used in critical components of biomass power plants. These operating conditions involve higher temperature ranges, more pronounced envi
Publikováno v:
Procedia Structural Integrity. 23:354-359
The increasing demands on efficiency and flexibility results in more detrimental operating conditions for the materials used in the boiler section of biomass power plants. Hence, the materials will be exposed to cyclic operation, increased temperatur
Autor:
Johan Moverare, Jaroslav Polák, Guocai Chai, Tomáš Kruml, Mattias Calmunger, Milan Heczko, Sten Johansson, Roman Petráš, Hugo Wärner
Publikováno v:
Procedia Structural Integrity. 13:843-848
Future advanced ultra-supercritical power plant will be run at higher temperature and pressure. New materials will be used to meet the requirements. However, the structure integrity of these materials needs to be evaluated. Sanicro 25 is a newly deve
Publikováno v:
International Journal of Fatigue. 100:251-262
Fatigue test data of duplex stainless steel grades, LDX 2101 and 2304 SRG, in the Very High Cycle Fatigue (VHCF) regime is presented. Fatigue testing was conducted using ultrasonic fatigue test equipment operating at 20 kHz under fully reversed tensi
Autor:
Zhe Chen, Sten Johansson, Jinming Zhou, Ru Lin Peng, Magnus Hörnqvist Colliander, Johan Moverare, Gustav Sundell
Publikováno v:
Materials Science and Engineering: A. 684:373-384
The formation mechanism of white layers during broaching and their mechanical properties are not well investigated and understood to date. In the present study, multiple advanced characterization techniques with nano-scale resolution, including trans
Publikováno v:
Solid State Phenomena. 258:302-305
The influence of ageing at temperature 700°C for up to 20 000 hours on the deformation, damage and fracture behavior of Alloy 617 has been investigated by two toughness tests. Dense nano γ` phase and carbides are the main precipitates. However, the
Publikováno v:
Materials Science Forum. 879:306-311
Influences of dynamic strain ageing and long term ageing on deformation, damage and fracture behaviors of Alloy 617 material have been studied. Dynamic strain ageing can occur in this alloy at temperature from 400 to 700°C, which leads to a strain h
Publikováno v:
Materials Science Forum. 879:855-860
Surface properties are essential for many engineering material ́s design issues, such as fatigue and corrosion performances. Austenitic stainless steels used in high-temperature applications, as for instance components in biomass-fired power plants,
On the conjoint influence of broaching and heat treatment on bending fatigue behavior of Inconel 718
Publikováno v:
Materials Science and Engineering: A. 671:158-169
In this study, the conjoint effect of a broaching operation, similar to that used for machining fir-tree slots on turbine discs, and subsequent heat treatments at 550 °C and 650 °C on the fatigue p ...