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

Using persistent experiment method, combined with Gleeble,hardness analysis, SEM, EDS, TEM and other analytical methods, the hot deformation, stress rupture and precipitation behavior of TP310HCbN heat resistance steel was analysed at 650°C and 700°C, the results show that:the change of the hardness...

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Published inCai liao gong cheng = Journal of materials engineering Vol. 45; no. 6; pp. 112 - 117
Main Authors Fang, Xu-Dong, Wang, Yan, Fan, Guang-Wei, Xia, Yan, Wang, Zhi-Bin, Han, Pei-De
Format Journal Article
LanguageChinese
Published Beijing Beijing Institute of Aeronautical Materials 01.06.2017
Journal of Materials Engineering
Subjects
Boilers
Chemical precipitation
Deformation resistance
Dislocations
hardness
Heat resistance
Heat resistant steels
Iron and steel making
Precipitates
precipitation phase
Rupture
Steel production
stress rupture
Stresses
Thermal resistance
TP310HCbN
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Summary:Using persistent experiment method, combined with Gleeble,hardness analysis, SEM, EDS, TEM and other analytical methods, the hot deformation, stress rupture and precipitation behavior of TP310HCbN heat resistance steel was analysed at 650°C and 700°C, 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 granular 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°C-100000h extrapolation lasting strength meet the standard requirements.
ISSN:1001-4381
1001-4381
DOI:10.11868/j.issn.1001-4381.2015.001068