Effects of heat treatment and irradiation on mechanical properties in F82H steel doped with boron and nitrogen

Okubo, Nariaki; Wakai, Eiichi; Matsukawa, S.; Sawai, Tetsuo; Kitazawa, Sin‐iti; Jitsukawa, Shiro

doi:10.1016/j.jnucmat.2007.03.159

Cited by 10 publications

(1 citation statement)

References 14 publications

(16 reference statements)

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“…The upper shelf energy of the irradiated F82H+ 11 B+N steel was hardly changed by the irradiation, but these of F82H-LN and F82H+ 11 B+N steels were reduced. The hardness and tensile behaviors of these specimens were previously examined [20,21]. The ratio of DBTT shift to irradiation hardening of F82H, F82H+ 11 B+N and F82H+ 10 B+N steels are about 0.3, 0.2 and 0.6°C/MPa, respectively, as given in Fig.…”

Section: Resultsmentioning

confidence: 99%

Reduction method of DBTT shift due to irradiation for reduced-activation ferritic/martensitic steels

Wakai

Okubo

Ando

et al. 2010

Journal of Nuclear Materials

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Section: Resultsmentioning

confidence: 99%

Reduction method of DBTT shift due to irradiation for reduced-activation ferritic/martensitic steels

Wakai

Okubo

Ando

et al. 2010

Journal of Nuclear Materials

Self Cite

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Retracted: Dissolution Behavior of Boron Nitride Inclusions and Segregation of Nb Element in Martensitic Ferritic Steel

Zhang

et al. 2019

steel research int.

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The solid solution strengthening of the B and N elements improves the creep resistance of the CB2 cast heat‐resisting steel, and the formation of boron nitride (BN) plays an important role in the strengthening results. The elimination of BN inclusions is usually the focus of BN research in steel, and the dissolution process of BN inclusions and the effect on Nb‐containing nitrides are ignored. Herein, secondary ion mass spectrometry (SIMS) and scanning electron microscopy (SEM) are used to study the changes of morphology and size of BN with temperature, and the mechanism of the influence of BN dissolution on the strength and ductility of CB2 steel is revealed. The BN particles having sharp corners become hollow spheres and then disappear when the temperature is raised from 1100 to 1200 °C. The dissolution of BN in CB2 steel is accompanied by an increase in strength and plasticity. When 1200 °C is selected as the heating temperature, the tensile strength and yield strength of CB2 steel are significantly increased. Furthermore, significant segregation of the niobium element occurs in the final stage of dissolution of BN inclusions. As the BN dissolves, the segregation of the Nb element is promoted.

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Retraction: “Dissolution Behavior of Boron Nitride Inclusions and Segregation of Nb Element in Martensitic Ferritic Steel”

Ma¹,

Zhang²,

Zhang³

et al. 2020

steel research int.

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DOI: 10.1002/srin.201900488 The above article from steel research international, published online on 21 November 2019 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the authors, the journal Editor‐in‐Chief, Sandra Kalveram, and John Wiley and Sons Ltd. After publication in EarlyView section, the authors asked for this retraction as they noticed in subsequent experiments that the presented results are not reproduceable.

show abstract

Effects of heat treatment and irradiation on mechanical properties in F82H steel doped with boron and nitrogen

Cited by 10 publications

References 14 publications

Reduction method of DBTT shift due to irradiation for reduced-activation ferritic/martensitic steels

Reduction method of DBTT shift due to irradiation for reduced-activation ferritic/martensitic steels

Retracted: Dissolution Behavior of Boron Nitride Inclusions and Segregation of Nb Element in Martensitic Ferritic Steel

Retraction: “Dissolution Behavior of Boron Nitride Inclusions and Segregation of Nb Element in Martensitic Ferritic Steel”

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