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Evaluation of DBTT and Creep Properties of Aged Main Valve Casing by Using Small Punch Specimens
Key Engineering Materials, 2005Both the change in DBTT and the degradation of creep properties of the aged CrMoV cast steel which had been actually used as a main steam valve were evaluated from the conventional SP test and the SP creep (SP-C) test using by SP test specimens. The CVN DBTTs of the virgin and aged steels were estimated to be 280 and 369 K by the conventional SP test ...
Takayuki Sugimoto +2 more
exaly +3 more sources
Scripta Materialia, 1998
Integrity of structures in various technologies depend on the fracture behaviors of materials, and in general the fracture characteristics of s tructural m aterials are evaluated using destructive tests, such as Charpy, fracture toughness, and other such techniques.
J H Hong
exaly +3 more sources
Integrity of structures in various technologies depend on the fracture behaviors of materials, and in general the fracture characteristics of s tructural m aterials are evaluated using destructive tests, such as Charpy, fracture toughness, and other such techniques.
J H Hong
exaly +3 more sources
DBTT and recrystallization behavior analyses for rolled and forged potassium-doped tungsten alloys
Fusion Engineering and DesignYu Chen, Jianbao Wang, Youyun Lian
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EFFECT OF THE PRECIPITATION OF Cu-RICH CLUSTERS ON THE DBTT OF RPV SIMULATED STEEL
Acta Metallurgica Sinica, 2012 Reactor pressure vessels(RPVs) are usually made of low alloy ferritic steels,among which A508-Ⅲsteel is a typical one.The long-term neutron irradiation can induce the embrittlement of RPV steels,and the embrittlement may lead to a reduction of the RPV service life.Generally, this behavior of the embrittlement is well established and is typically ...
Gang XU +5 more
openaire +2 more sources
DBTT Estimation of Ferritic Low Alloy Steels in Service Plant by means of Small Punch Test
Key Engineering Materials, 1991Tomiharu Matsushita +2 more
exaly +3 more sources
Determination of Ductile-Brittle Transition Temperature (DBTT) in Dynamic Small Punch Test
Journal of Testing and Evaluation, 1992Abstract A dynamic small punch test technique is demonstrated for measuring the ductile-brittle transition temperature (DBTT) of aged Cr-Mo-V turbine rotor steels. Based on fracture energy measurements and fracture surface observations it is shown that the dynamic small punch test specimens exhibit a clear ductile-brittle transition ...
Y-H Joo, T Hashida, H Takahashi
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Investigation of an Updated Continuum Damage Model in the DBTT Region
AIP Conference Proceedings, 2010With the investigation of influence of the stress triaxiality on the fracture properties, an updated continuum damage model is proposed and realized by FEA to evaluate the temperature effect and the strain rate effect on the fracture properties in the ductile and brittle transition temperature (DBTT) region.
Zhao-Xi Wang +8 more
openaire +2 more sources
Modelling of the Charpy Impact Test in the DBTT Range
Materials Science Forum, 2005The finite element method was used in order to compute the energy balance and the stress-strain distribution in the Charpy V-notch specimen. Inertial effects were taken into account by a fully dynamic computation. It was shown that inertial oscillations are damped by viscoplasticity ahead the notch and vanish rapidly. 3D modelling is needed since large
Hausild, Petr +2 more
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Effect of Initial Heat Treatment on DBTT of F82H Steel Irradiated by Neutrons
Fusion Science & Technology, 2005The dependence of ductile-brittle transition temperature (DBTT) on tempering time and temperature was examined for a martensitic steel F82H irradiated at 150 and 250°C to a neutron dose of 1.9 dpa ...
E. Wakai +6 more
semanticscholar +3 more sources