Size Effect on Fracture Toughness of A508-3 Steel Predicted by Using Beremin Model

被引：0

作者：

Zhou H. ^{[1
]}

Zhong W. ^{[1
]}

Ning G. ^{[1
]}

Lin H. ^{[1
]}

Yang W. ^{[1
]}

机构：

[1] Division of Reactor Engineering Technology Research, China Institute of Atomic Energy, Beijing

来源：

Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | 2022年 / 56卷 / 01期

关键词：

A508-3; steel; Beremin model; Data normalization model; Fracture toughness; Size effect;

D O I：

10.7538/yzk.2021.youxian.0109

中图分类号：

学科分类号：

摘要：

Fracture toughness is an important index to characterize the brittle state of reactor pressure vessel (RPV) steel. During the irradiation embrittlement study of RPV steel, small size compact tension (CT) specimens are generally used, because of the limited space for irradiation test. In order to understand the effect of CT specimen size on fracture toughness test result of domestic RPV steel, different sizes CT specimens of domestic A508-3 steel were tested in this paper. Size effect on fracture toughness data was studied by Beremin model method. Then the fracture toughness data normalization model (TSM, a modified toughness scaling model) of different sizes CT specimens was established. The results show that the fracture toughness increases with the decrease of sample size at the same test temperature. The normalized data of different specimens obtained by standard method has deviation. The TSM established in this paper can reduce the deviation of converted data. © 2022, Editorial Board of Atomic Energy Science and Technology. All right reserved.

引用

页码：186 / 192

页数：6

共 21 条

[1] ODETTE G R, LUCAS G E., Embrittlement of nuclear reactor pressure vessels, J Miner Metals Mater Soc, 3, 7, pp. 18-22, (2001)
[2] OROWAN E., Fracture and strength of solids, Reports on Progress in Physics, 12, 1, pp. 185-232, (1949)
[3] WALLIN K, PLANMAN T, VALO M, Et al., Applicability of miniature size bend specimens to determine the master curve reference temperature T<sub>0</sub>, Engineering Fracture Mechanics, 68, 11, pp. 1265-1296, (2001)
[4] YAMAMOTO M, KIMURA A, ONIZAWA K, Et al., A round robin program of master curve evaluation using miniature C(T) specimens: First round robin test on uniform specimens of reactor pressure vessel material, Asme Pressure Vessels & Piping Conference, (2012)
[5] (2009)
[6] PETTI J P., Constraint and ductile tearing effects on the cleavage fracture of ferritic steel, (2004)
[7] SOKOLOV M A., Development of mini-compact tension test method for determining fracture toughness master curves for reactor pressure vessel steels, (2017)
[8] ANDRIEU A, PINEAU A, BESSON J, Et al., Beremin model: Methodology and application to the prediction of the euro toughness data set, Engineering Fracture Mechanics, 95, pp. 102-117, (2012)
[9] KIM B J, KASADA R, KIMURA A, Et al., Effects of specimen size on fracture toughness of phosphorous added F82H steels, Fusion Engineering and Design, 86, 9-11, pp. 2403-2408, (2011)
[10] BESWICK J, SARZOSA D, SAVIOLI R, Et al., Applicability of local approaches to assessment of cleavage fracture in complex constraint and load history cases, Procedia Structural Integrity, 13, pp. 63-68, (2018)

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