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首页> 外文期刊>Materials at High Temperatures >Influence of particle formation during long time ageing on mechanical properties in the austenitic stainless steel 310
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Influence of particle formation during long time ageing on mechanical properties in the austenitic stainless steel 310

机译：长时间时效过程中颗粒形成对奥氏体不锈钢310力学性能的影响

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摘要

Intense precipitation may occur in high-temperature materials during service. This precipitation significantly affects the mechanical properties. Coarse precipitates can reduce ductility and toughness dramatically. To investigate the phenomenon, precipitation in the austenitic stainless steel AISI 310 is quantified in a parallel paper. The samples were aged up to 5000 h at 800°C. Especially, σ-phase and M_(23)C_6-carbides were analysed. A model for the influence of coarse particles on ductility has been developed and successfully applied to the measured values. A model due to Chen and Mott has been used to compute the effect of particles on toughness. A satisfactory agreement with the observations was obtained.
机译：在维修期间，高温材料中可能会出现强烈的沉淀。这种沉淀会显着影响机械性能。粗大的沉淀物会大大降低延展性和韧性。为了研究该现象，在平行纸中量化了奥氏体不锈钢AISI 310中的沉淀。样品在800°C下老化5000h。特别地，分析了σ相和M_（23）C_6-碳化物。已经开发出一种粗颗粒对延性影响的模型，并将其成功地应用于测量值。 Chen和Mott提出的模型已用于计算颗粒对韧性的影响。观察结果令人满意。

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