对一种新型高铬铁素体钢在温度为650 ℃和110, 120, 130 MPa三种应力下的蠕变性能进行了研究, 并对该钢蠕变前后的显微组织进行了对比分析。结果表明:该钢具有良好抗蠕变性能, 在650 ℃下, 随着载荷从110 MPa增加到130 MPa, 其蠕变断裂时间从4 500 h降低到3 600 h, 蠕变速率从7.7×10-10 s-1提高到1.1×10-9 s-1, 其蠕变抗力在相同试验条件下优于T91、T92 和T122钢的;该钢的板条马氏体在颈缩变形区完全消失; 在均匀和颈缩区内的M23C6型碳化物都明显粗化, 同时形成了新的Fe2(W, Mo)金属间化合物相。
所属栏目
收稿日期
2010/2/212010/12/14
作者单位
刘俊亮:宝钢股份公司研究院, 上海 201900
备注
刘俊亮(1965-), 男, 上海人, 博士。
引用该论文:
LIU Jun-liang.Creep Properties and Microstructure of A New High Chromium Ferric Steel[J].Materials for mechancial engineering,2011,35(2):54～57
刘俊亮.一种新型高铬铁素体钢的蠕变性能及显微组织[J].机械工程材料,2011,35(2):54～57
被引情况:
【1】
沈喜训,刘俊亮,沈巍, "铜含量对高铬铁素体钢组织和蠕变性能的影响",机械工程材料
36, 12-16(2012)
【2】
刘俊亮,单爱党, "新型铁素体耐热钢在650 ℃的蠕变特性及氧化行为",机械工程材料
36, 52-55(2012)
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