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Microstructure and mechanical properties of FGBA/BG air cooling bainitic steels containing niobiumChun Feng,Hong-sheng Fang,Bing-zhe Bai,and Yan-kang Zheng Department of Materials Science and Engineering,Tsinghua University,Beijing 100084,China摘 要:<正>......
MICROSTRUCTURE AND PROPERTIES OF HIGH BORON BEARING STEEL S.Y.Chen1,C.S.Liu1,Q.K.Cai1,B.Yu1,Z.T.Wang1 (1.School of Materials and Metallurgy,Northeastern University,Shenyang 110006,China) Abstract:High boron bearing steel, in which boron homogeneously distributed, was successfullyproduced in the vacuum induction furnace. The microstructural observations of castand hot rolled steels showed......
Experimental study on Ti+Nb bearing ultra-low carbon bake hardening sheet steel hot-rolled in the ferrite regionJi-ping Chen1),Yong-lin Kang1,2),Ying-min Hao1),Guang-ming Liu3),Ai-ming Xiong3) 1... and Technology Beijing,Beijing 100083,China 3) Steel Research Institute of Shougang,Beijing 100041,China摘 要:A Ti+Nb bearing ultra-low carbon bake hardening sheet......
Niobium Extraction from Baotou Iron Ore Containing Niobium周渝生,杨天钧,孟涛,范鹏,董一诚,何旭初摘 要:<正> The experimental results of niobium enrichment in laboratory and in blast furnace in Baotou Iron andSteel Corporation were reported.The effects of temperature,constituents of slag and silicon content in hotmetal on niobium recovery were studied and the results......
Dripping and evolution behavior of primary slag bearing TiO2 through the coke packed bed in a blast-furnace hearthYan-xiang Liu1,2,Jian-liang Zhang1,2,Ke-xin Jiao2,Guo-hua Zhang1,Kuo-chih Chou1,21...="ChDivSummary" name="ChDivSummary">To investigate the flow of primary slag bearing TiO2 in the cohesive zone of blast furnaces,experiments were carried out based on the laboratory-scale packed bed......
Static oxidation behaviour of silicide coating on niobium alloy at high temperature XIAO Lai-rong(肖来荣)1, 2, XU Liang-liang(许谅亮)1, 2, YI Dan-qing(易丹青)1, 2, LIU Hui-qun(刘会群)1, 2, CAI Zhi-gang(蔡志刚... coating is parabolic. The diffusion of Si leads to the phase transformation and evolution during the oxidation. Key words: niobium alloy; silicide coating; static oxidation; diffusion; phase......
and proposal about rational utilization of medium and low grade phosphate ores in Hubei province [J]. Industrial Minerals and Processing, 2005(11): 1-4. [3] 龚贵生. 云南中低品位磷矿开发利用与问题探讨[J]. 中国工程科学, 2005, 7(9... are 10, 10 and 100 g/m3, respectively. The effect of Tween 60 is the best with about 15% increase of the rate of phosphate leached with a dosage of 10 g/cm3. Key words: low-grade phosphate ore......
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In-depth analysis of the fatigue mechanism induced by inclusions for high-strength bearing steelsChao Gu1,Wen-qi Liu2,Jun-he Lian2,Yan-ping Bao11. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing2. Department of Mechanical Engineering, Aalto University摘 要:A numerical study of stress distribution and fatigue......
the effect of basicity on minerals compositions of pellets as dolomite was added to the pellets, and indicated that oxide bonded pellets formed in the case of low basicity, oxide bonded pellets combined.... Experimental results demonstrated that the fluxed-pellets containing high amount of the MgO bearing additive displayed the lowest RDI. However, the fluxed-pellets with low amounts of MgO bearing additive showed......
