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含钛铁素体不锈钢中氧化钛夹杂物控制的研究张贺佳1,陈伟庆1,郑宏光2(1.北京市北京科技大学 冶金与生态工程学院2.宝钢研究院不锈钢技术中心,上海 201900)摘 要:采用碳管炉冶炼含钛铁素体不锈钢,采用光学显微镜和扫描电镜分析试样中夹杂物的数量和类型,研究钢包渣氧化性和钢中[Al]含量对钢中TiO2夹杂物形成的影响,同时进行了渣中FeO与[Al],[Ti]反应生成TiO2和Al2O3的热力学计算.计算和实验结果均表明,控制钢液中[Al]含量在平衡曲线(1)之上,同时尽可能降低钢包渣的氧化性,能够有效抑制钢中......
J. Cent. South Univ. (2012) 19: 1116-1124 DOI: 10.1007/s11771-012-1117-z Bearing capacity and settlement of strip footing on geosynthetic reinforced clayey slopes S. A. Naeini, B. Khadem Rabe, E... of geosynthetic reinforcing on bearing capacity of a strip footing resting on georeinforced clayey slopes was investigated. The results of a series of numerical study using finite element analyses......
Finite element analysis of deformation characteristics in cold helical rolling of bearing steel-ballsCAO Qiang(曹强)1, 2, HUA Lin(华林)2, 3, QIAN Dong-sheng(钱东升)1, 2(1. School of Materials Science... analytical method, it is significant to develop a 3D finite element (FE) model of HR process. The key forming conditions of cold HR of bearing steel-balls were detailedly described. Then, by taking steel-ball......
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J. Cent. South Univ. (2017) 24: 533-545 DOI: 10.1007/s11771-017-3456-2 Modeling and verification of comprehensive errors of real-time wear-depth detecting for spherical plain bearing tester LI Wei(李巍), HU Zhan-qi(胡占齐), YANG Yu-lin(杨育林), FAN Bing-li(范兵利), ZHOU Hai-li(周海丽) Aviation Key Laboratory of Science and Technology on Generic Technology of Aviation Self-Lubricating Spherical Plain Bearing......
treatment of throughhardening bearing grades in the lower bainitic range allows to adjust the mechanical properties of machine components to the later application, similar to those of martensitic... and the hardness of the steel after the shortened heat treatments were measured. Finally the possibility to use these processes in industrial production is discussed. 关键词:bainite; bearing steel; dilatometry......
Progressive collapse resisting capacity of reinforced concrete load bearing wall structuresAlireza Rahai1, Alireza Shahin1, Farzad Hatami2(1. Department of Civil Engineering, Amirkabir University.... O. Box. 15875-4413, Tehran, Iran)Abstract:Reinforced concrete (RC) load bearing wall is widely used in high-rise and mid-rise buildings. Due to the number of walls in plan and reduction in lateral......
. Investigation of inclusions in bearing steel under refining with high basicity slag[J]. Iron and Steel, 2004, 39(7): 21-23. [6]Saxena S K. Refining reaction of magnesium in steel at steelmaking...; 文献标识码: A Inclusion modification in GCr15 bearing steel with Al-Mg alloy treatment WANG Bo, JIANG Zhou-hua, JIANG Mao-fa (School of Materials and Metallurgy, Northeastern University......
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J. Cent. South Univ. (2021) 28: 2527-2543 DOI: https://doi.org/10.1007/s11771-021-4784-9 Experimental study on bearing capacity of shell strip footings near geotextile-reinforced earth slopes Seyed... angle on the ultimate bearing capacity of shell foundations. With increasing foundation distance from the slope, the adverse effect of the slope is reduced. However, as the distance decreases......
