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    题名 作者 年代 出处 被引量
1Efficient Regeneration Potential is Closely Related to Auxin Exposure Time and Catalase Metabolism During the Somatic Embryogenesis of Immature Embryos in Triticum aestivum L显示文摘Maoyun She Guixiang Yin Jiarui Li Xing Li Lipu Du Wujun Ma Xingguo Ye 2013Molecular Biotechnology2013,,2:1
2Effect of Zirconium on Tensile Property,Microstructure and Fracture Behaviour of Cast Ni_3Al Based Alloy显示文摘EfectofZirconiumonTensileProperty,MicrostructureandFractureBehaviourofCastNi3AlBasedAloyYeWujun,FengDi,HanGuangwei,LuoHeli①A...Ye Wujun, Feng Di, Han Guangwei, Luo Heli Central Iron and Steel Research Institute, MMI, Beijing (100081), China 1997Journal of Iron and Steel Research(International)1997,4,1:1
3Investigation on Cracking in the Surfacing Welding Layer of Ni_3Al Based Alloy显示文摘Investigation has been made into the causes of cracking in the Surfacing welding layer of Ni3Al based alloy by analysing both the liqu id-to-solid transformation in the molten pool and the distribution of thermal stress within the surfacing welding layer. The results show that cracking in the surfacing welding layer is directly related to the producing of eutectic phase β’ (NiAl) in the interdendritic region and high thermal stress within the surfacing welding layer. When the process of electric arc surfacing welding is changed from along straight line to along' Z' pattern, cracking in the surfacing welding layer of Ni3Al based alloy is prevented due to being reduced of both the cooling rate of liquid in the molten pool and the moving speed of the heat source. Reducing the melting volume of the substrate material by lowering the output power of electric arc welding would make the content of iron atoms in the molten pool decrease. and this also can reduce the trend of the eutectic reaction in the interdendfitic region and is helpful to Suppress cracking in the surfacing welding layer.Guangwei HAN Di FENG and Wujun YE (Dept.5, Central Iron and Steel Research Institute, Beijing, 100081, China)(To whom correspondence should be addressed) 1994Journal of Materials Science & Technology1994,10,5:0
4APPLICATION RESEARCH ON THE Ni _3 Al INTERMETALLIC COMPOUND IN CISRI显示文摘APPLICATIONRESEARCHONTHENi_3AlINTERMETALLICCOMPOUNDINCISRIFENGDi;YEWujun;HANGuangwei;LUOHeli(CentralIronSteelResearchInstitut?..FENG Di YE Wujun HAN Guangwei LUO Heli(Central Iron Steel Research Institute, Beijing 10008 1 , China) 1995Acta Metallurgica Sinica(English Letters)1995,8,Z1:0
5Effects of Temperature and Disperse Phase of Disordered γ on Strain Hardening Rate of Ni_3Al显示文摘Investigations have been made on the effects of temperature and fine disperse phase of disordered γ on strain hardening rate of Ni3Al based alloy. The result is found that there exists a peak temperature for the strain hardening rate of Ni3Al based alloy below the peak temperature of its yield strength. Analysis shows that the appearance of the peak temperature of strain hardening rate is caused by both the decreasing of the movability of <101> superdislocations on {111}slip plane and the increasing of the dynamic recovery in Ni3Al with increasing temperature. A Ni3Al based alloy hardened by disperse phase of disordered γ has been obtained by controlling chemical composition and treating processes. The peak temperature of strain hardening rate of this alloy is increased due to the fine disperse phase of disordered γ, which causes the reductions of the movability of the superdislocations and the dynamic recovery inGuangwei HAN Di FENG and Wujun YE (Central Iron and Steel Research Institute, Beijing, 100081, China) 1995Journal of Materials Science & Technology1995,11,6:0
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