METHOD OF DETERMINING THE SHIFT OF CRITICAL BRITTLENESS TEMPERATURE OF VESSEL STEELS AS A RESULT OF LONG-TERM THERMAL EFFECTS.

被引：0
|
作者：
Astaf'ev, A.A. [1 ]
Yukhanov, V.A. [1 ]
Shur, A.D. [1 ]
Bobkov, V.V. [1 ]
机构：
[1] All-Union Scientific-Research Inst, of Heavy Engineering, Scientific, & Production Organization of, All-Union Scientific-Research Inst of Heavy Engineering, Scientific & Production Organization o
来源：
Industrial laboratory | 1984年 / 50卷 / 10期
关键词：
METALS AND ALLOYS - Thermal Effects;
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摘要：
The effect of thermal aging on the shift of critical brittleness temperature (t//c//r) was determined for 15Kh2NMFA and 10GN2MFA steels used for vessel structures of nuclear power plant. Blanks cut out from the central third of industrial shells were subjected to aging for up to 10,000 h at temperatures of 350-480 degree C. Inpact toughness was determined on type II specimens to GOST 9454-78. The value of t//c//r was determined from the impact toughness level KCV equals 588 kJ/m**2 at the fraction of the ductile component on the fracture surface not lower than 50% at (t//c//r plus 30) degree C.
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页码：1014 / 1017
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