研究了钒含量和0.22％铜对11Cr 2W低活化马氏体钢组织以及650℃下拉伸、蠕变性能的影响.结果表明:钒含量和0.22％的铜对钢的组织和M23C6相的尺寸没有明显影响,当钒的质量分数为0.105％时,基体中弥散分布的MX相最多且最为细小;当钒的质量分数从0.105％增加到0.203％时,试验钢的抗拉强度从325.2 MPa降低为289.4 MPa,蠕变寿命从370 h缩至251 h;添加0.22％的铜可以提高试验钢的蠕变寿命.
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