利用RD-2型高温持久试验机、高分辨透射电子显微镜和能谱仪研究了国产S30432耐热钢在供货态及不同温度、应力条件下持久断裂后的第二相,尤其是Z相的析出行为及影响因素.结果表明:供货态S30432钢中只存在MX相;在650 ℃、170 MPa、10 712 h持久条件下析出了M23C6碳化物和富铜相;在700 ℃、150 MPa、937 h条件下,不仅析出了M23C6碳化物和富铜相,还出现了Z相及包含MX相和Z相的颗粒;在700 ℃、150 MPa、1 944 h条件下Z相粗化缓慢,在700 ℃、100 MPa、11 832 h条件下Z相粗化明显;高温和应力均会加速Z相的析出.
所属栏目
试验研究“十二五”国家科技支撑计划资助项目(2011BAK06B04);国家自然科学基金资助项目(51171097)
收稿日期
2013/12/312014/12/14
作者单位
唐波:上海大学材料科学与工程学院, 上海 200072
朱丽慧:上海大学材料科学与工程学院, 上海 200072
备注
唐波(1987-),男,四川资阳人,硕士研究生.
引用该论文:
TANG Bo,ZHU Li-hui.Precipitation Behaviour of Z-phase in Domestic S30432 Steel at High-Temperature and Stress[J].Materials for mechancial engineering,2015,39(5):19～22
唐波,朱丽慧.高温和应力作用下国产S30432钢中Z相的析出行为[J].机械工程材料,2015,39(5):19～22
被引情况:
【1】
李文胜,黄 翔,王 伟,胡 平,张春雷,高 岩, "Super304H奥氏体不锈钢高温下组织与性能演变的研究进展",机械工程材料
40, 1-5(2016)
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