Temp al oy A-3锅炉钢管在650℃的蒸汽氧化试验研究
唐丽英;王博涵;周荣灿;侯淑芳
【期刊名称】《热力发电》 【年(卷),期】2014(000)009
【摘要】The results from steam oxidation test on Tempaloy A-3 tube at 650 ℃ for up to 1 000 h show that the oxide scale of Tempaloy A-3 was with two-layer structure:Fe3 O4 outer layer and Cr2 O3 inner lay-er.The protective oxide scale was formed at early stage of oxidation,then it grew slowly in the subsequent oxidation process.The steam oxidation resistance of Tempaloy A-3 was obviously better than that of TP347HFG.In addition,the Tempaloy A-3 had good high temperature strength and aging toughness, therefore it could be a substitute for HR3C in high temperature heating environments.%对Tempaloy A-3钢管在650℃下进行了1000 h的蒸汽氧化试验,通过分析钢管内壁氧化层物相、微观组织和微区成分,研究了钢材的蒸汽氧化行为。结果表明,该材料氧化层为双层结构,外层为Fe3 O4,内层以Cr2 O3为主；初始保护性氧化层形成以后,在随后的氧化过程中生长缓慢；Tempaloy A-3在650℃下的抗蒸汽氧化性能明显优于TP347HFG,同时具有良好的高温强度和时效韧性,可替代 HR3C用于高温受热面。
【总页数】6页(102-107)
【关键词】锅炉管;Tempaloy A-3 钢;蒸汽氧化;氧化层;微观结构 【作者】唐丽英;王博涵;周荣灿;侯淑芳
Temp al oy A-3锅炉钢管在650℃的蒸汽氧化试验研究
