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using vacuum refining because of its high vapor pressure. However, boron is difficult to remove using either directional solidification [2,3] or vacuum treatment [4,5] because of its high segregation...Trans. Nonferrous Met. Soc. China 26(2016) 3299-3304 Boron removal from molten silicon using CaO-SiO2-BaO-CaF2 slag Jin-ling SUN1, Jin-chuan JIE1, Qing-chuan ZOU1, Li-juan GUO2, Zhi-qiang CAO1, Tong......
): 5646-5652. [7] LIN H M, LIAO Y S, WEI C C. Wear behavior in turning high hardness alloy steel by CBN tool[J]. Wear, 2008, 264(7/8): 679-684. [8] GHOSH A, CHATTOPADHYAY A K. Experimental investigation...; 文献标识码: A Microstructure and properties of BCu80Ni5SnTi active filler metal for brazing cubic boron nitride WANG Yi1, 2, YIN Shi-qiang1, LU Guang-lin3, LI Shi-quan1, QIU Xiao-ming1 (1......
coefficient of carbon atom. More amount of fine martensite forms under the higher deformation temperature or the quicker cooling rate. Key words: high strength boron steel; mechanical properties... of ultra-high strength boron manganese steels within hot stamping [J]. International Journal of Material Forming, 2009, 2: 259–262. [3] NADERI M, KETABCHI M, ABBASI M, BLECK W. Analysis......
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known, the application field and the price of the alloy depend on the content of V and the impurities in the alloy. Therefore, making a high quality and low cost alloy has become a glaring... J. Cent. South Univ. (2020) 27: 1-9 DOI: https://doi.org/10.1007/s11771-020-4272-7 Electrode heating effects on preparation of Al-65V alloy WAN He-li(万贺利)1, 2, 3, 4, XU Bao-qiang(徐宝强)1, 2, 3, LI......
Master方程的修正及其对BA模型度分布的计算王双进,李凌云,张建河北工业大学理学院摘 要:Master方程是计算无标度网络度分布演化规律的一种常用方法.提出了对原始的Master方程进行修正,加入了节点增长机制,修正后的Master方程具有离散性,能够更精确,更有效的计算真实复杂网络的度分布演化规律.用修正的Master方程分析BA模型度分布的解析式并计算,由此得到BA模型度分布对数图.把离散性的Master方程与连续性的平均场理论进行对比分析,并在同一坐标系下分别做出用两种理论计算的BA模型度分布的对数图.关键词:Master方程;BA模型;度分布;节点增长机制;......
A Cold Adhesion for Self-fused Alloy Coat by High Frequency Induction ZHANG Zeng-zhi1,AI Bo1 (1.Research Institute of Ecological and Functional Material, China University of Mining and Technology (Beijing), Beijing, China) 摘要:In this study, a method to prepare self-fused alloy coat, which started with a cold adhesion precoating and then induction fusing plus, is presented. It also intended......
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High cycle fatigue properties of die-cast magnesium alloy AZ91D-1%MM XU Yu-lei(徐玉磊)1, ZHANG Kui(张 奎)1, LI Xing-gang(李兴刚)1, LEI Jian(雷 健)2, YANG Yuan-sheng(杨院生)3, LUO Tian-jiao(罗... and dimple and it is brittle fracture mode as a whole. Key words: magnesium alloy; die casting; high cycle fatigue; rare earths; fractography ......
this problem, it is urgent to develop self-lubricating composites with stabilized solid lubricants at high temperatures. The solid lubricant hexagonal boron nitride (h-BN) is called white graphite because... Berlin Heidelberg 2011 Abstract: Ni-Cr/h-BN self-lubricating composities were prepared by powder metallurgy (P/M) method. The effects of hexagonal boron nitride (h-BN) content on the mechanical......
