聚变堆用9Cr-1.5WVTa低活化马氏体钢的热物理性能研究

物理测试, 2011, 29(3): 25-29.

聚变堆用9Cr-1.5WVTa低活化马氏体钢的热物理性能研究

何西扣 ^1, , 朱衍勇 ^2, , 万发荣 ^3, , 乔建生 ^4,

1.钢铁研究总院分析测试研究所,北京100081

2.钢铁研究总院分析测试研究所,北京100081;北京科技大学材料物理与化学系,北京100083

3.北京科技大学材料物理与化学系,北京100083

4.中国原子能科学院,北京102413

基金项目: 973基金(2008CB717802) 国家自然科学基金(50771017)

关键词： 9Cr-1.5WVTa钢 , 低活化 , 热物理性能 , 硅 , 聚变堆

Study on Thermal Physical Properties of 9Cr-1.5WVTa Low Activation Martensitic Steel for Fusion Reactor

基于中国正在研究的聚变堆用9Cr-1.5WVTa低活化马氏体钢(CLAM钢),采用膨胀仪测量了两组不同硅含量CLAM钢从100℃到700℃的热膨胀系数,利用激光闪光法测量两组试样从室温到700℃的热扩散率、比热及热导率等热物性参数.所得试验数据按照多项式拟合绘图并与F82H比较.结果显示:CLAM钢的热膨胀性能比F82H稍好,而导热性能则相对较差;未添加质量分数为0.2%硅的CLAM钢具有较优良的热物理性能,热膨胀系数低,热导率高,这种差别主要原因在于硅含量低的CLAM钢的原奥氏体晶粒尺寸较粗大、晶界较少.

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聚变堆用9Cr-1.5WVTa低活化马氏体钢的热物理性能研究

Study on Thermal Physical Properties of 9Cr-1.5WVTa Low Activation Martensitic Steel for Fusion Reactor

参考文献