Research and development on the China low activation martensitic steel (CLAM)

Yu, Jin‐Hai; Huang, Qi; Wan, Fang

doi:10.1016/j.jnucmat.2007.03.236

Cited by 71 publications

(27 citation statements)

References 17 publications

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“…[28] For each trial set {l 0 0 , …, l 0 5 } the other Table 1 Composition (wt.%) of reduced activation FM steels with a favorable combination of physical properties [9,10] for n = 0, 1, 2 and thus uniquely determine the remaining parameters. Note that the temperature 1100 K falls just below the onset of the c-loop, which starts at 1120 K, so by definition the position of the c-loop and liquid-solid phase boundaries remains unchanged.…”

Section: Parameterizationmentioning

confidence: 99%

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New Contribution to the Thermodynamics of Fe-Cr Alloys as Base for Ferritic Steels

Bonny

Terentyev

Malerba

2010

J. Phase Equilib. Diffus.

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High chromium ferritic-martensitic steels are commonly used for industrial applications requiring high strength at elevated temperature. Such steels typically contain 9-14 at.% Cr and a few percents of minor alloying elements. In recent studies it has been shown that the Cr solubility limit of the standard Fe-Cr phase diagram in that composition range is significantly underestimated. For the purpose of more reliable engineering and out of physical considerations, we reparameterize the Gibbs free energy so that the correct Cr solubility at low temperature ( <700 K) is reproduced, while leaving the rest of the phase diagram changed only slightly. The mixing enthalpy and heat capacity resulting from the new parameterization are also compared with experiments and found to be in good agreement.

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Section: Parameterizationmentioning

confidence: 99%

“…[7,8] Thus, commercial and experimental FM steels containing about 9-12% Cr and few percents of minor alloying elements have been considered or developed for nuclear applications in Russia, the US, Japan, China, and Europe. [9,10] As an illustration, the typical composition of some of these high-Cr steels is summarized in Table 1.…”

Section: Introductionmentioning

confidence: 99%

New Contribution to the Thermodynamics of Fe-Cr Alloys as Base for Ferritic Steels

Bonny

Terentyev

Malerba

2010

J. Phase Equilib. Diffus.

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“…RAFM강은 9Cr-1MoVNb계 내열강에서 저방사화 특성을 만족시키기 위해 고방사화 원소인 Mo와 Nb 을 저방사화 원소인 W과 Ta으로 각각 대체한 합금 조성을 가지며, 유럽에서 개발중인 9Cr-1W계의 EUROFER97, 일본의 8Cr-2W계인 F82H가 가장 대표적인 RAFM강이다 [9][10][11] …”

Section: 서 론unclassified

Microstructures and Mechanical Properties of Reduced-activation Ferritic/Martensitic (RAFM) Steels with Ti Substituted for Ta

Seol¹,

Lee²,

Moon³

et al. 2017

Journal of the Korean Society for Heat Treatment

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The aim of this study is to examine a feasibility to substitute Ti for Ta in reduced activation ferritic/martensitic (RAFM) steel by comparing a Ti-added RAFM steel with a conventional Ta-added RAFM steel. The microstructures and mechanical properties of Ta-, and Ti-added RAFM steels were investigated and a relationship between microstructures and mechanical properties was considered based on quantitative analysis of precipitates in two RAFM steels. Ta-, and Ti-added RAFM steels were normalized at 1000~1040 o C for 30 min and tempered at 750 o C for 2 hr. Both RAFM steels had very similar microstructures, that is, typical tempered martensite with relatively coarse M 23 C 6 carbides at boundaries of grain and lath, and fine MX precipitates inside laths. The MX precipitates were identified as TaC in Ta-added RAFM steel and TiC or (Ti, W)C in Ti-added RAFM steel, respectively. It is believed that these RAFM steels show similar tensile and Charpy impact properties due to similar microstructures. Precipitate hardening and brittle fracture strength calculated with quantitative analysis of precipitates elucidated well the similar behaviors on the tensile and Charpy impact properties of Ta-, and Ti-added RAFM steels.

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“…As the predominant microstructure of high Cr ferritic creep-resistant steels, martensite formed during continuous cooling after austenization has also been studied extensively [9][10][11][12]. However, the model for nucleation and growth of martensite in high Cr ferritic steels is rarely mentioned.…”

Section: Introductionmentioning

confidence: 99%

Non-instantaneous growth characteristics of martensitic transformation in high Cr ferritic creep-resistant steel

et al. 2016

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Microstructural observation and high-resolution dilatometry were employed to investigate kinetics of martensitic transformation in high Cr ferritic creep-resistant steel upon different quenching/cooling rates. By incorporating the classical athermal nucleation and impingement correction, a non-instantaneous growth model for martensitic transformation has been developed. The developed model describes austenite/martensite interface mobility during martensite growth. The growth rate of martensite is found to be varied from 1 9 10 -6 to 3 9 10 -6 m/s. The low interface mobility suggests that it is not appropriate to presume the instantaneous growth behavior of martensite. Moreover, based on the proposed model, nucleation rate of martensite under different cooling rates is found to be nearly the same, while the growth rate of martensite is promoted by increasing the cooling rate.

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Research and development on the China low activation martensitic steel (CLAM)

Cited by 71 publications

References 17 publications

New Contribution to the Thermodynamics of Fe-Cr Alloys as Base for Ferritic Steels

New Contribution to the Thermodynamics of Fe-Cr Alloys as Base for Ferritic Steels

Microstructures and Mechanical Properties of Reduced-activation Ferritic/Martensitic (RAFM) Steels with Ti Substituted for Ta

Non-instantaneous growth characteristics of martensitic transformation in high Cr ferritic creep-resistant steel

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