超超临界锅炉材料TP310HCbN(HR3C)持久及析出行为  

Stress Rupture and Precipitation Behavior of TP310HCbN(HR3C) for Supercritical Boilers

作　　者：方旭东[1,2,3] 王岩[1,2] 范光伟[2] 夏焱[1,2] 王志斌[1,2] 韩培德[3] 

机构地区：[1]太原钢铁(集团)有限公司先进不锈钢材料国家重点实验室,太原030003 [2]山西太钢不锈钢股份有限公司技术中心,太原030003 [3]太原理工大学材料科学与工程学院,太原030024

出　　处：《材料工程》2017年第6期112-117,共6页Journal of Materials Engineering

基　　金：山西省科技重大专项项目(20111101053);山西省技术创新项目(2007-046)

摘　　要：采用持久试样方法,结合Gleeble、硬度分析、SEM、EDS、TEM等分析手段,对TP310HCbN耐热钢热变形以及在650℃与700℃条件下持久及析出行为进行了分析。结果表明:两种持久温度条件下,硬度变化趋势差别不大;随着持久时间延长,TP310HCbN耐热钢晶内析出物由颗粒状转变为棒状,并存在大量与位错相互作用的蠕虫状NbCrN析出物;太钢生产的TP310HCbN耐热钢650℃/700℃-100000h外推持久强度均满足标准要求。Using persistent experiment method, combined with Gleeble, hardness analysis, SEM, EDS, TEM and other analytical methods, the hot deformation, stress rupture and precipitation be- havior of TP310HCbN heat resistance steel was analysed at 650℃ and 700 ℃, the results show that： the change of the hardness is not obviously under two different stress rupture temperature; with stress rupture time prolongs, TP310HCbN heat-resistant steel intragranular precipitates from granu- lar into rod-shaped, and presence of wormlike NbCrN rich precipitates and dislocation interactions; Taiyuan Iron and Steel production of TP310HCbN heat-resistant steel at 650/700℃-100000h extrapo- lation lasting strength meet the standard requirements.

关 键 词：TP310HCbN 析出相 持久 硬度 

分 类 号：TG113.2[金属学及工艺—物理冶金]