2008
DOI: 10.1016/j.jnucmat.2008.05.010
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Reduced-activation steels: Future development for improved creep strength

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Cited by 67 publications
(37 citation statements)
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“…By means of thermomechanical treatment, the body of martensitic lath generates high density dislocation, which could provide some advantageous condition for the nucleation of MX carbo-nitride, at the same time, the high density dislocation will effectively hinder the increase of MX carbo-nitride1 [6][7][8][9] . Simultaneously, the solute atoms diffusion rate along these high density dislocation pipeline is higher than else direction, and the atom Ta and V of CLAM steel easily segregates in the defective condition such as the high density dislocation, which could availably accelerate substitutional diffusion of the MX carbo-nitride forming element [8][9][10] . In the process of thermomechanical treatment, the deformation stress prompts solubility variation of the carbon and nitrogen in the original austenite, the solubility reduces by a large margin, so thermomechanical treatment can be able to induce the MX carbo-nitride to separate out in certain effectiveness [10][11] .…”
Section: Advances In Engineering Research Volume 146mentioning
confidence: 99%
“…By means of thermomechanical treatment, the body of martensitic lath generates high density dislocation, which could provide some advantageous condition for the nucleation of MX carbo-nitride, at the same time, the high density dislocation will effectively hinder the increase of MX carbo-nitride1 [6][7][8][9] . Simultaneously, the solute atoms diffusion rate along these high density dislocation pipeline is higher than else direction, and the atom Ta and V of CLAM steel easily segregates in the defective condition such as the high density dislocation, which could availably accelerate substitutional diffusion of the MX carbo-nitride forming element [8][9][10] . In the process of thermomechanical treatment, the deformation stress prompts solubility variation of the carbon and nitrogen in the original austenite, the solubility reduces by a large margin, so thermomechanical treatment can be able to induce the MX carbo-nitride to separate out in certain effectiveness [10][11] .…”
Section: Advances In Engineering Research Volume 146mentioning
confidence: 99%
“…RAFM steels have modified compositions from conventional ferritic-martensitic 8-12 %CrMoVNb steels. At present, different kinds of RAFM steels are alloyed with Cr, W, Mn, V, Ta, C and N (Baluc et al 2007b;Klueh 2008):…”
Section: What Is Reduced Activation?mentioning
confidence: 99%
“…Increasing the upper temperature limit above 600 °C (up to 700 °C) has been attempted (Kurtz et al 2009;Klueh 2008;de Carlan et al 2004). Tempering temperature of those steels is 750 °C or higher.…”
Section: Performance Targetmentioning
confidence: 99%
“…Ферритно-мартенситные 9-12%-ные хромистые стали обычно используются в состоянии после закалки в воздухе и высокотемпературного отпуска (традиционная термическая обработка) [3][4][5]. Температура 1040-1100 ºС и продолжительность выдержки 20-120 мин при аустенизации с последующей закалкой варьируются в зависимости от химического состава сталей, определяющего условия растворения частиц карбидных фаз [3].…”
unclassified
“…Температура 1040-1100 ºС и продолжительность выдержки 20-120 мин при аустенизации с последующей закалкой варьируются в зависимости от химического состава сталей, определяющего условия растворения частиц карбидных фаз [3]. Для увеличения пластичности и ударной вязкости закалённая сталь подвергается отпуску в интервале температур 650-780 ºС в течение 1-3 ч. Согласно [4,5] такая обработка приводит к формиро-ванию ферритно-мартенситной структуры, дисперсно-упрочнённой карбидами М 23 С 6 (М-Cr, Mn, Fe) и MX (M-V, Ta, Ti, Zr и др., X-C, N) размером 60-200 и 20-80 нм соответственно.…”
unclassified