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Null 包大杰1 (1.上海柴油机厂,上海,200432) 摘要: 问:何谓钢铁中全碳量(总碳量)和游离碳?答:碳在钢,铁中主要以化合状态和游离状态存在.在钢中主要以铁的碳化物如:Fe3C,Fe23C6等以及与某些合金元素的碳化物如:Mn3C,WC,TiC,MoC,VC,Cr3C2,Cr6C2等形式存在,统称为化合碳,钢中很少有游离碳.在铁中碳除以化合碳存在外,还以游离状态(石墨碳)存在,而且是主要形式.但是在白口铁中则多以碳化铁(Fe3C)形式存在. [全文内容正在添加中] ......
Mechanical properties and structure of zirconia-mullite ceramics prepared by in-situ controlled crystallization of Si-Al-Zr-O amorphous bulk LIANG Shu-quan(梁叔全), ZHONG Jie(钟 杰), TAN... structure in which there are a lot of near equiaxed t-ZrO2 grains and fine yield-cracks has been developed in the samples with 15% zirconia addition treated at 1 150 ℃. This specific microstructure is much......
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on the structure and properties of electroless Co-B alloy coating. At the same time electroless Co-B alloy with amorphous structure is transformed to electroless Co-B-RE alloy with microcrystalline...Effect of Rare Earth Metals on Structure and Properties of Electroless Co-B Alloy Coating 宣天鹏1,张雷1,黄秋华1 (1.Material Institute Hefei University of Technology, Hefei 230009, China) Abstract......
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Crystallographic Analysis of Isothermally Transformed Bainite in 0.2C-2.0Mn-1.5Si-0.6Cr Steel Using EBSDPasi P.Suikkanen1,2,Anthony J.DeArdo4,L.Pentti Karjalainen52. Department of Mechanical... of Pittsburgh,848 Benedum Hall,Pittsburgh,PA 15261-2285,USA摘 要:<正>The crystallography of bainite,transformed isothermally at 450℃in 0.2C-2.0Mn-1.5Si-0.6Cr......
) shows that the deformed microstructure changes from α+β phase lamellar to β transformed structure (which indicates single β phase at deformed temperature). Therefore, phase transformation occurs during... Subtransus deformation mechanisms of TC11 titanium alloy with lamellar structure SONG Hong-wu(宋鸿武), ZHANG Shi-hong(张士宏), CHENG Ming(程 明) Institute of Metal Research, Chinese Academy of Sciences......
: Focusing on effect of carbon content and structure on reducibility LV Jin-fang(吕晋芳)1, 2, TONG Xiong(童雄)1, 2, ZHENG Yong-xing(郑永兴)2, XIE Xian(谢贤)1, 2, HUANG Ling-yun(黄凌云)1, 2 1. Faculty of Land Resource... structure had an important effect on its reduction. Key words: relative high concentration Cr(VI); reduction; ZVI powder; carbon content; carbon structure Cite this article as: LV Jin-fang, TONG Xiong......
The Organize Structure and Property of Eletroless Ni-P/PTFE Composite Layer HAO Wen-sen1,ZHAO Fu-jun2,LI Guo-xiang3,WANG Zhou2,Li Guo-Xi3,ZHANG Xu-yun1,LI Hong-liang2,XA Li-fang4 (1.Daqing... of the temperature of heat treatment, the joint force of the composite layer is decreased. 关键词:eletroless Ni-P/PTFE; composite layer; structure and property; [全文内容正在添加中] ......