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9篇 您的检索式:作者名="ZHENG Yankang"
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1Comparison of corrosion behavior of ZL104 alloy at as-cast and heat treatment states显示文摘The corrosion behavior of ZL104 alloy at different states(as-cast and heat treatment) in salt spray corrosion (SSC) was studied.The results show that the sample treated after refinement and modifciation has the least corrosive resistance compared with the sample bearing as -cast stucure at the beginning of the corrosion.As the corrosion process continued.however,the trend reversed itself.After 44h continuous corrosion,the corrosive rates of all samples tend to be stable.After experiments,the sample bearing as -cast structure had the most corrosive products on the surface whereas the sample being refined and modified had the least products.The Fourier transformation infrared spectroscopy(FTIR) analyses of the corrosion products show that these products are composed of hydroxyl-containing substances.WANG Donghui, ZHENG Yankang, LI ianguo, and BAI BingzheDepartment of Materials Science and Engineering, Tsinghua University, Beijing 100084, China 2002Rare Metals2002,21,3:4
2Formation mechanism of bainitic ferrite and carbide 显示文摘FANG Hongsheng WANG Jiajun ZHENG Yankang 1994Metallurgical and Materials Transaction A1994,25,9:1
3Novel air-cooling bainitic steels显示文摘FANG Hongsheng ZHENG Yankang CHEN Xiuyun 1988Journal of Metals1988,40,3:1
4Formation mechanism of bainitic ferrite and carbide显示文摘Fang Hongsheng Wang Jianjun Zheng Yankang 1994Metallurgical and Materials Transactions A1994,25,9:1
5Novel air-cooling bainitic steels显示文摘Fang Hongsheng Zheng Yankang Chen Xiuyun 1988Journal of Metals1988,40,3:1
6EffectofadditionratesofAlG3B masteralloyongrainrefinementofhypoeutectic AlGSialloys显示文摘Wang Donghui Lijianguo Zheng Yankang etal 2001ChineseJournalofRareMetals2001,25,6:1
7BAINITE STRUCTURE IN Cu-Zn-Al ALLOY OBSERVED BY SCANNING TUNNELING MICROSCOPE显示文摘BAINITESTRUCTUREINCu-Zn-AlALLOYOBSERVEDBYSCANNINGTUNNELINGMICROSCOPE¥LiChunming;FangHongsheng;FengQingling;ZhengYankang(Depar...Li Chunming Fang Hongsheng Feng Qingling Zheng Yankang(Department of Material Science and Engineering, Tsinghua Universitg,Beijing 100084)Yan, Junjue(Beijing universitg,Beijing,100871)Abstact:The bainite structurc in a Cu-25.9Zn-4.0Al-0.1Re (wt.-%) allo 1994中国有色金属学会会刊:英文版1994,4,4:0
8LEDGE STRUCTURE ON BROAD FACES OF FERRITE PLATES IN LOWER BAINITE显示文摘The ferrite/austenite interfacial structure in lower bainite has been studied in ahypereutectoid steel by means of electron microscopy.It is found that the mobile growthledges and superledges and their three-dimensional morphologies exist on the broad faces offerrite plates.Structural ledges were also observed on the broad faces of lower bainite.Basedon TEM observations,the viewpoint that the growth ledges can also evolve from structuralledges is proposed.These observations provide evidences to the ledge growth mechanism oflower bainite.JIN Qiang FANG Hongsheng CAO Jianjun ZHENG Yankang CHEN Xiuyun Tsinghua University,Beijing,China Present adress: Central Iron and Steel Research Institute,Ministry of Metallurgical Industry,Beijing,100081,China 1991Acta Metallurgica Sinica(English Letters)1991,4,3:0
9Effects of Si Content and the Addition Amount of Al-3B Master Alloy on the Solidification Structures of Hypoeutectic Al-Si Alloys显示文摘Effects of Si content and the addition amount of Al-3B master alloy on the solidification structures of hypo- eutectic Al-Si alloys were studied. The addition amounts of the master alloy were 0.2%, 0.4%, 0.7% and 1% (mass frac- tion, so as the follows), respectively. The Si content of Al-Si binary alloys investigated varied from 1% to 11%. The ob- servation of macrostructures of non-refined samples showed that 3% Si constitutes a transition point at which the mini- mum grain size can be obtained. It was also found that Al-3B master alloy can shift the transition point towards a higher Si value when its addition amount increases, making this point appear at 4%, 5% and 6% Si as its addition amount incre- ases up to 0.4%, 0.7% and 1%, respectively.Donghui Wang,Jianguo Li, Yankang Zheng, Bingzhe Bai Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China 2001Rare Metals2001,20,3:0
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