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	Effect of delta -ferrite on impact properties of 12%Cr rotor steel for ultra-supercritical steam conditions
	Ma Lishen ; Zhong Yuexian ; Ma Qingxian ; Yuan Chaolong ; Dong Lanfeng
	2010-10-12 ; 2010-10-12
关键词	Experimental/ austenitic steel ferrites grain size impact (mechanical) power plants rotors steam plants/ delta -ferrite rotor steel ultrasupercritical steam conditions heat-resisting steels fossil fueled power plants austenite grain size impact property temperature 293 K to 298 K temperature 900 degC to 1050 degC CrWNiMoVNbN FeO/ A8140P Friction, lubrication, and wear A6480G Microstructure A6825 Mechanical and acoustical properties of solid surfaces and interfaces A6220M Fatigue, brittleness, fracture, and cracks E1710 Engineering materials E2180C Buckling and instability (mechanical engineering) E2180F Ballistics and mechanical impact (mechanical engineering) E2210 Mechanical components E2310 Power and plant engineering (mechanical engineering)/ temperature 2.93E+02 to 2.98E+02 K temperature 1.17315E+03 to 1.32315E+03 K/ CrWNiMoVNbN/ss Cr/ss Mo/ss Nb/ss Ni/ss N/ss V/ss W/ss FeO/bin Fe/bin O/bin
中文摘要	High and intermediate pressure rotors made from heat-resisting steels containing 12% Cr are a key part of fossil fueled power plants working at ultra-supercritical conditions and should possess excellent impact properties at both high and room temperatures. The effect of delta -ferrite on the impact properties of 1Cr12W2NiMoVNbN rotor steel was studied experimentally. The results show that the delta -ferrite seriously damages the impact properties of the steel, while the austenite grain size within some range does not obviously affect the impact properties. The results also show that the delta -ferrite can be eliminated by heating at 900 - 1 050 degrees C.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80515]
专题	清华大学
推荐引用方式 GB/T 7714	Ma Lishen,Zhong Yuexian,Ma Qingxian,et al. Effect of delta -ferrite on impact properties of 12%Cr rotor steel for ultra-supercritical steam conditions[J],2010, 2010.
APA	Ma Lishen,Zhong Yuexian,Ma Qingxian,Yuan Chaolong,&Dong Lanfeng.(2010).Effect of delta -ferrite on impact properties of 12%Cr rotor steel for ultra-supercritical steam conditions..
MLA	Ma Lishen,et al."Effect of delta -ferrite on impact properties of 12%Cr rotor steel for ultra-supercritical steam conditions".(2010).

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