共搜索到24424条信息,每页显示10条信息,共2443页。用时:0小时0分0秒557毫秒
, Chinese Academy of Sciences, Beijing 100029, China) Abstract: The La2O3 and Ce2O3 oxides were doped into the Fe-Ni based alloy powder in order to improve the high-temperature properties of Fe-Ni based...文章编号:1004-0609(2011)12-3115-05 稀土改性Fe-Ni基涂层的高温性能 张丽民1,刘邦武2,刘淑凤1,夏 雯1,王书明1 (1. 北京有色金属研究总院 国家有色金属及电子材料分析测试中心,北京 100088; 2. 中国科学院 微电子研究所,北京 100029) 摘 要:为提高Fe-Ni基涂层的高温性能,在Fe-Ni基合金粉末中添加La2O3和......
Received 2 May 2012; accepted 4 November 2012 Abstract: The micro gear mold for powder injection molding was made by electroforming process of Fe-Ni and Fe-Ni-W alloys using UV-lithography process... successfully. Surface hardness values of the electroformed micro molds were measured to be HV490 and HV645, respectively. Key words: electroforming; Fe-Ni alloy; Fe-Ni-W alloy; gear mold; PIM 1 Introduction......
] ZHANG Chuan-fu, YAO Yong-lin, ZHANG Yin-liang, ZHAN Jing. Preparation of ultra-fine fibrous Fe-Ni alloy powder by coordinated co-precipitation-direct reduction process [J]. Transactions of Nonferrous...Trans. Nonferrous Met. Soc. China 24(2014) 3710-3715 Non-isothermal reduction kinetics of Fe2O3-NiO composites for formation of Fe-Ni alloy using carbon monoxide Bo LI, Yong-gang WEI, Hua WANG State......
gradually assemble and grow into larger spherical particles with increasing temperature and prolonging time. After reduction, the nickel laterite ore obviously changes into two parts of Fe-Ni metallic... mechanism; Fe-Ni metallic phase 1 Introduction Nickel is an important metal used in the production of stainless steel and alloys [1]. Approximately 65% and 12% of the overall nickel consumption worldwide......
Electrodeposition of Fe-Ni alloy coating on ferritic stainless steel GENG Shu-jiang(耿树江), LI Yan-dong(李言栋), XIANG Dong(向 东), ZHOU Shi-gang(周时刚) School of Materials and Metallurgy... _____________________________________________________________________________________________________ Abstract: Fe-Ni alloy coatings were electrodeposited on ferritic stainless steel (FSS) in solutions containing FeSO4 and NiSO4. The effects of pH, [Fe2+]/[Ni2+] (molar ratio) of electroplating solutions......
properties and microstructure of electrodeposited Fe and Ni alloy foil GUO Zhan-chena. LIU YLrxin. Liu Merfena. LU Werchana ( Institute of Process Engineering, The Chinese Academy of Sciences, ...: electroforming; Fe Ni alloy; foil; magnetic property; microstructure 较磁材料从纯铁,Fe Si合金(硅钢),Fe Ni合金(坡莫合金)到Fe- Co合金已有100多年的历史.传统上这些软磁合金是经过冶炼,锻造,热轧或冷轧,热处理等繁杂工艺制成晶态合金,生产成本高,产品规格(特别是薄带幅宽,厚度)受......
parts. AM opens a door for fast prototyping, great flexibility and customizing at low cost, driving weight and assembling reduction. Key words: automotive; powder metallurgy; lean alloy; Al alloy; Ti alloy; metal injection molding, additive manufacturing Cite this article as: TAN Zhao-qiang, ZHANG Qing, GUO Xue-yi, ZHAO Wei-jiang, ZHOU Cheng-shang, LIU Yong. New development of powder metallurgy......
Preparation of AZ91 alloy by powder metallurgy method JIANG Hai(姜 海)1, HE Xin-bo(何新波)1, QU Xuan-hui(曲选辉)1,2, I. S. HUMAIL2 , WANG Xi-tao(王西涛)2 1. School of Materials Science and Engineering... Received 28 July 2006; accepted 15 September 2006 Abstract: Magnesium alloy AZ91 was prepared by powder metallurgy method, and the effect of sintering temperature on the densities and microstructures......
Trans. Nonferrous Met. Soc. China 22(2012) 2972-2978 Preparation of ultra-fine fibrous Fe-Ni alloy powder by coordinated co-precipitation-direct reduction process ZHANG Chuan-fu, YAO Yong-lin, ZHANG... prepared by coordinated co-precipitation was direct reduced by hydrogen to ultra-fine fibrous Fe-Ni alloy powder. The effects of concentrations of reactants, pH value, reaction temperature and additive......
扩散条件下抽拉速率对Fe-4.2Ni合金定向凝固组织演化的影响冯周荣1,沈军1,王伟1,闵志先1,傅恒志1(1.陕西省西安市西北工业大学凝固技术国家重点实验室)摘 要:在内径为1 mm的细管中进行了Fe-4.2Ni亚包晶合金扩散条件下的定向凝固实验.在15μm/s抽拉速率下得到了树状组织,共生组织以及δ/γ两相分离生长的凝固组织,组织演化规律为:δ单相→δ/γ两相树状组织→γ+两相共生组织→δ/γ两相分离并列生长组织;抽拉速率为35μm/s时,获得了以γ岛状为主的凝固组织,组织演化规律为:δ单相→δ/γ两相树状组织→γ-岛状组织+共生组织→δ+γ-岛状组织.实验发现,提高抽拉速率使凝固初始阶段的两相生长竞争加剧,并导致凝固过程中的相选择和全程组织演化规律发生改变.关键词:Fe-Ni合金; 扩......