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| 1 | 超音速火焰喷涂碳化物粒径不同的WC-10Co4Cr涂层在粗细磨粒下的磨损性能显示文摘改进的ASTM G65橡胶轮测试方法可采用220nm二氧化钛颗粒和368μm的砂粒分别在潮湿和干燥条件下使用。在由碳化物粒径不同(传统和亚微米)的两种粉末所制备的WC-CoCr涂层上开展试验,研究碳化物大小和磨损介质特性对涂层磨损性能的影响。采用扫描电镜对同一位置磨损前后的低倍和高倍形貌进行观察,并分析了涂层的磨损机理。结果表明:磨损机理取决于碳化物和磨粒的相对大小。在样品上进行磨损定量分析,通过调整碳化物尺寸可改善磨损性能,测试涂层的一些力学性能用于对比。 | Arash Ghabchi Tommi Varis Erja Turunen Tomi Suhonen S-P Hannula 谢旭霞 | 2010 | 热喷涂技术2010，，4： | 15 |
| 2 | Sprayformed Hot Work Steels for Rapid Tooling显示文摘The present work compares microstructures of hot work steels made by different processes, that is, by sprayforming,by casting, and a commercially supplied H13 steel. Material benefits are recognized by sprayforming hot working tools such as die inserts for hot forging. The sprayformed hot work steels present a fine and homogeneous microstructure,which implies that, at a similar toughness level, the sprayformed steel can be higher alloyed, so that the thermal fatigue and wear resistance at elevated temperatures can be improved. A series of steels with higher vanadium content than commercial hot work steels are developed. There are no segregation and carbide network problems usually encountered in conventional ingot/forging processed high-vanadium steels. Microstructure and hardness of the new sprayformed steels are studied under different heat treatment conditions. It is justified that these sprayformed steels can be directly used for tooling without high temperature hardening. Sprayforming the tool steels onto a precision ceramic mould is demonstrated to extend the technoeconomical benefits, so that a net shape production tool can be rapidly made.Features of the rapid tooling process are also discussed. | Yunfeng Yang Simo-Pekka Hannula | 2003 | Journal of Materials Science & Technology2003，19，z1： | 5 |
| 3 | Recent breakthrough development of the magnetic shape memory effect in Ni-Mn-Ga alloys显示文摘 | SODERBERG O GE Y SOZINOV A HANNULA S P LINDROOS V K | 2005 | Smart Mater Struct2005，14，： | 1 |
| 4 | Development of precision spray forming for rapid tooling显示文摘 | YANG Y F HANNULA S | 2008 | Materials Science and Engineering2008，477，： | 1 |
| 5 | Age-related acquisition of oral and nasophanyngeal yeast species and stability of colonization in young children显示文摘 | Hannula J Saarela M Jousimies-Semer H | 1999 | Oral Microbiol Immunol1999，14，3： | 1 |
| 6 | A semi'empirical model for pressurised air-blown fluidised-bed gasification of biomass 显示文摘 | I HANNULA E KURLELA | 2010 | Bioresource Technology2010，101，8： | 1 |
| 7 | Development of Precision Spray Forming for Rapid Tooling 显示文摘 | YANG Yun-feng Simo-Pekka Hannula | 2008 | Materials Science and Engineering2008，477，： | 1 |
| 8 | Development of preci-sion spray forming for rapid tooling显示文摘 | YUNFENG YANG SP HANNULA | | 0，，： | 1 |
| 9 | Magnetic shape memory effect in thin foils显示文摘 | HECZKO O SOROKA A HANNULA S | 2008 | Applied Physics Letters2008，93，2： | 1 |
| 10 | Determination of time-dependent plastic properties of metals by indentation load relaxation techniques显示文摘 | STONE D S LI C Y | 1985 | Mater Res Soc Symp Proc1985，40，： | 1 |
| 11 | The effect of cooling rate on beef tenderness: The significance of pH at 7℃显示文摘 | HANNULA T PUOLANNE E | 2004 | Meat Science2004，67，： | 1 |
| 12 | Effect of putative el- flux pump inhibitors and inducers on the antimicro- bial susceptibility of Campylobacter jejuni and Campylobacter coli显示文摘 | Hannula M Hanninen ML | 2008 | J Med Microbiol2008，57，7： | 1 |
| 13 | A 3-year study reveals that plant growth stage, season and field site affect soil fungal communities while cuitivar and GM-trait have minor effects显示文摘 | Hannula S E Wietsede B Johannesvan V | 2012 | PLoS ONE2012，7，4： | 1 |
| 14 | Typing of mutants streptococci by arbitrarily primed polymerase chain reaction显示文摘 | Saarela M Hannula J Matto J | 1996 | Archs Oral Biol1996，41，89： | 1 |
| 15 | Development of precision spray forming for rapid tooling显示文摘 | Yunfeng Yang Simo-Pekka Hannula | 2007 | Materials Science & Engineering A2007，，1： | 1 |
| 16 | Soundness of spray formed disc shape tools of hot-work steels显示文摘 | Y. Yang S.P. Hannula | 2004 | Materials Science & Engineering A2004，，1： | 1 |
| 17 | Development of Precision Spray Forming for Rapid Tooling显示文摘 | Yang Yunfeng Simo-Pekka Hannula | 2008 | Materials Science and Engineering A2008，477，1： | 1 |
| 18 | In situ dynamics of soil fungal communities under different genotypes of potato, including a genetically modified cultivar显示文摘 | Hannula S E de Boer W van Veen J A | 2010 | Soil Biology and Biochemistry2010，42，12： | 1 |
| 19 | Do genetic modifications in crops affect soil fungi? A review显示文摘 | Hannula S E de Boer W van Veen J A | 2014 | Biology and Fertility of Soils2014，50，3： | 1 |
| 20 | Finite element analysis of customized reconstruction plates for mandibular continuity defect therapy显示文摘 | Narra N Valek J Hannula M | 2014 | J Biomech2014，47，1： | 1 |
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