Results 141 to 150 of about 340 (168)
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DBTT and recrystallization behavior analyses for rolled and forged potassium-doped tungsten alloys
Fusion Engineering and DesignYouyun Lian, Jianbao Wang
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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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EFFECT OF THE PRECIPITATION OF Cu-RICH CLUSTERS ON THE DBTT OF RPV SIMULATED STEEL
Acta Metallurgica Sinica, 2012Reactor 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
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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 ...
Shinichi Komazaki +2 more
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Progress in developing DBTT determinations from miniature disk bend tests
Journal of Nuclear Materials, 1986Experiments to investigate the possibility of obtaining ductile-to-brittle transition temperature (DBTT) data using bend tests of 3 mm diameter disks are described. A disk specimen 0.40 mm thick with two V-shaped grooves, 0.10 mm deep at right angles to each other along diameters of the disk face, is found to be suitable.
G Kohse
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An updated continuum damage model to investigate fracture process of structures in DBTT region
International Journal of Fracture, 2008zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Zhao-Xi +4 more
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Variations in DBTT and CTOD within weld heat-affected zone of API X65 pipeline steel
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2012Abstract The fracture resistance of heat-affected zones (HAZs) in girth welded joint of API X65 steel pipeline was systematically investigated. While the change in Charpy impact energy has been typically evaluated in previous studies, here the variations in ductile-to-brittle temperature (DBTT) and crack-tip opening displacement (CTOD) within HAZ ...
Jae-Il Jang, Jang-Bog Ju
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Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2018
Abstract In this paper, 1 mm thick W-0.5 wt%ZrC alloy plates were prepared by mechanical milling, hot pressing sintering and multistep hot and cold rolling. A newly developed testing technique based on the amplitude-dependent internal friction (ADIF) was used to determine the ductile-to-brittle transition temperature (DBTT) of this W-0.5 wt%ZrC alloy.
Q F Fang, X P Wang, Z M Xie
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Abstract In this paper, 1 mm thick W-0.5 wt%ZrC alloy plates were prepared by mechanical milling, hot pressing sintering and multistep hot and cold rolling. A newly developed testing technique based on the amplitude-dependent internal friction (ADIF) was used to determine the ductile-to-brittle transition temperature (DBTT) of this W-0.5 wt%ZrC alloy.
Q F Fang, X P Wang, Z M Xie
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Journal of Nuclear Materials, 1991
Abstract The small punch (SP) test technique using TEM disk miniaturized specimens has been developed to evaluate the ductile-brittle transition temperature (DBTT) for irradiated ferritic structural steels. The SP tests were performed for F-82 (8Cr-2W-V), F-82H with Ta and HT-9 (12Cr-lMo-V-W) ferritic steels under consideration for demonstrating a ...
Y Hamaguchi
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Abstract The small punch (SP) test technique using TEM disk miniaturized specimens has been developed to evaluate the ductile-brittle transition temperature (DBTT) for irradiated ferritic structural steels. The SP tests were performed for F-82 (8Cr-2W-V), F-82H with Ta and HT-9 (12Cr-lMo-V-W) ferritic steels under consideration for demonstrating a ...
Y Hamaguchi
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DBTT Estimation of Ferritic Low Alloy Steels in Service Plant by means of Small Punch Test
Key Engineering Materials, 1991Tetsuo Shoji +2 more
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