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ODS铁素体钢具有优异的抗辐照肿胀性和高温蠕变性能,可用作快反应堆的第一壁和包层材料.本文介绍了ODS铁素体钢的制备工艺和存在的主要问题.重点阐述了Y2O3颗粒的溶解/析出机制、影响残余α-Fe形成的因素(EX.0和Ti的含量)及残余α-Fe对高温蠕变性能的影响.分析了在制备薄壁包层管时中间热处理的重要性,并讨论了再结晶热处理、马氏体相变和α→γ相变三种方法来消除ODS铁素体钢的各向异性.

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