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channel angular pressing (ECAP) plus cold rolling (CR), was applied to producing ultra-fine grained FeCoV alloy. The microstructures of ultra-fine grained FeCoV alloy after ECAP, ECAP plus CR, and the effect of tempering treatment on the microstructure of FeCoV alloy produced by ECAP plus CR were investigated. The results show that an elongated substructure with a width of about 0.3 μm is obtained......
热处理对FeCoV薄膜磁性能的影响杜兆富1,李洪珠2,王蕾1,徐立红1,张洪平1,赵栋梁11. 钢铁研究总院功能材料研究所2. 辽宁工程技术大学摘 要:本文研究了热处理对FeCoV薄膜微观结构及磁性能的影响.XRD分析表明,制备态的FeCoV薄膜,(110)方向为择优取向,在250℃热处理后,开始出现(200)衍射峰.热处理过程中,随着温度的升高,薄膜内部应力的释放,以及晶粒的长大使得薄膜的矩磁比迅速增大.在温度高于340℃以后,薄膜的矩磁比增加趋缓,(200)衍射峰增强,磁晶各向异性增强.关键词:FeCoV薄膜;热处理;磁性能;......
FeCoV合金ECAP变形和回火组织 符寒光1,杜忠泽2,王经涛3,伍来智4 (1.西安交通大学,陕西,西安,710049;2.西安建筑科技大学,陕西,西安,710055;3.南京理工大学,江苏,南京,210049;4.上海交通大学,上海,200030) 摘要:在室温下成功实现了FeCoV合金A方式的等径弯曲通道变形(equal channel angular pressing,简称ECAP),并研究了变形后的显微组织以及回火处理对FeCoV合金ECAP变形显微组织的影响.结果显示,FeCoV合金经ECAP变形后,形成细小的板条状组织,且尺寸明显减小,由0.40μm减小至90 nm.板条内有位错缠结现象.随着ECAP变形道次的增加,细板条发生断裂.4道次ECAP变形FeCoV合金回火后的组织仍为板条组织,板条内有碳化物颗粒和纳米尺度析出相存在. 关键词:等径弯曲通道变形......
回火对等通道角变形FeCoV合金组织的影响 符寒光1,王庆娟2,杜忠泽2,王经涛3,伍来智4 (1.西安交通大学材料科学与工程学院,陕西西安,710049;2.西安建筑科技大学冶金工程学院,陕西,西安,710055;3.南京理工大学材料科学与工程系,江苏,南京,210094;4.上海交通大学模具CAD国家工程研究中心,上海,200030) 摘要:用透射电镜研究了等通道变形(ECAP)的FeCoV合金在不同回火温度的组织变化.结果表明,4道次ECAP变形FeCoV合金经回火后发生纳米尺度相析出.其析出过程是首先在原来的等轴状亚晶晶界,细板条晶界上析出大的碳化物颗粒.大的碳化物颗粒中析出小的碳化物颗粒和纳米尺度析出相.随着析出的进一步进行,纳米尺度析出相所占的比例逐渐上升.随着回火温度的升高,纳米尺度析出相发生长大现象.沿挤压面(S面)析出的效果好,析出相分布密度高;沿侧面(L面)析出......
新型FeCoV磁滞合金的研究 黄海燕1 (1.宝钢集团上海五钢有限公司特钢技术中心,上海,200490) 摘要:本文研究了一种用于制造磁滞电机转子的磁滞合金,在FeCoV4合金的基础上通过化学成分的调整:添加Cr元素,减少V含量;冷轧工艺和热处理工艺的试验,获得了一种性能优于FeCoV4的新型磁滞合金. 关键词:磁滞合金; 热处理; FeCoV4; [全文内容正在添加中] ......
Sputtering-pressure dependence of magnetic properties in amorphous Tb40(FeCoV)60 films冯唐福,李永乐,李飒姿,陈子瑜Department of Physics,Beihang University摘 要:The Tb40(Fe49Co49V2)60 films were fabricated by magnetron cosputtering from a multiple target arrangement at different argon pressures.The samples were investigated using X-ray diffraction,magnetic force......
Sputtering-pressure dependence of magnetic properties in amorphous Tb40(FeCoV)60 films冯唐福,李永乐,李飒姿,陈子瑜Department of Physics,Beihang University摘 要:The Tb40(Fe49Co49V2)60 films were fabricated by magnetron cosputtering from a multiple target arrangement at different argon pressures.The samples were investigated using X-ray diffraction,magnetic force......
The Strengthening of Cu-15Ni-8Sn Alloy WANG Ming-Pu1,WANG Yan-hui1,HONG Bin1 (1.School of Material Science and Engineering, Central South University, Changsha China) 摘要:The microstructure, property and relation between them of Cu-15Ni-8Sn alloy are studied by means of TEM and the measurement of hardness. The results show that γ '' metastable phase strengthens alloy because of its ordering......
The Technological Improvements of Aluminum Alloy Coloring by Electrolysis LI Nai-jun1 (1.Teachers College, Shenyang University, Shenyang 110015, P. R. China) 摘要:The technological process of coloring golden-tawny on aluminum alloy by electrolysis was improved in this paper. The optimum composition of electrolyte was found, the conditions of deposition and anodic oxidation by electrolysis were......
Microstructure and Performances of Nanocrystalline Zinc-nickel Alloy Coatings LI Guang-yu1,NIU Li-yuan1,JIANG Zhong-hao1,LIAN Jian-she1 (1.The Key Lab of Automobile Materials, Ministry of Education, China, College of Materials Science and Engineering, Jilin University, Nanling Campus, Changchun, 130025, China) 摘要:Nanocrystalline zinc-nickel alloy coatings were deposited from an alkaline......
