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| 1 | Solvent de binding of water soluble binder in powder injection moulding显示文摘The solvent debinding of water soluble binder in powder injection moulding (MIM) was investigated systematically, including the effects of solvent types, temperature and the thickness of green parts on the solvent debinding rate. After studying the debinding of a green part with a thickness of 4.26 mm, it was found that, the debinding rate of polyethylene glycol(PEG) in water and alcohol was high initially, and then decreased; however, it would increase with temperature increasing. At room temperature, the dissolution rate of PEG in water was higher than that in alcohol, but the latter would be much faster with temperature increasing because the debinding activation energy in alcohol was 51.44 kJ·mol -1 ·K -1 , much higher than 24.23 kJ·mol -1 ·K -1 in water. With a green part thickness larger than 4.26 mm, the debinding was controlled by diffusion; but with that smaller than 2.36 mm, the debinding was controlled by both dissolution and diffusion. | Li Songlin(李松林) Huang Baiyun(黄伯云) Qu Xuanhui(曲选辉) Li Yimin(李益民) | 1999 | 中国有色金属学会会刊:英文版1999，9，3： | 14 |
| 2 | LOW TEMPERATURE THERMAL DEBINDING BEHAVIOR OF WAX-BASED MULTI-COMPONENT BINDER FOR TUNGSTEN HEAVY ALLOY显示文摘1INTRODUCTIONPowderinjectionmoulding(PIM)isanewprocessformanufacturingnearnetshapepartswithadvantagesoflowcost,highperformanc... | Fan, Jinglian Huang, Baiyun Qu, Xuanhui Li, Yiming | 1999 | 中国有色金属学会会刊:英文版1999，9，1： | 10 |
| 3 | Preparation of Li-B Alloy and Study of Its Microstructure and Discharge Characteristics显示文摘A Li-B alloy has been prepared using a pretreated amorphous B powder and pure Li ingot as starting materials by continually slow addition of B powder and intensified stirring in the process of melting. The microstructure and the discharge characteristic of the materials have been investigated. Results show that the problem of temperature control in synthesis would be modified by means of continual addition of B powder, the Li7B6 would be more finely distributed in the metal Li by means of intensified Stirring. The discharge characteristic of the Li-B alloy using amorphous B as starting materials is almost the same with that of using crystalline B. | Zhijian LIU, Zhiyou LI, Wei DUAN, Xuanhui QU, Baiyun HUANG and Siqi ZHANG (State Key Laboratory for Powder Metallurgy , Central-South University of Technology, Changsha 410083, China) | 2000 | Journal of Materials Science & Technology2000，16，6： | 9 |
| 4 | NUMERICAL SIMULATION OF FEEDSTOCK MELT FILLING IN A CYLINDRICAL CAVITY WITH SOLIDIFICATION IN POWDER INJECTION MOLDING显示文摘INTRODUCTIONPowderinjectionmolding(PIM)isaprocesingrouteforfabricatingmetalorceramiccomponentswithcomplexshapeandhighperfor?.. | Qu Xuanhui, Li Yimin, Yue Hongsheng, Mao Jinying, Zhu Lei and Huang Baiyun State Key Laboratory for Powder Metallurgy, Central South University of Technology, Changsha 410083, P. R. China | 1998 | 中国有色金属学会会刊:英文版1998，8，4： | 9 |
| 5 | Current status and development of traumatic brain injury treatments in China显示文摘由于它的高发生,高残疾率,和高死亡率,创伤的大脑损害(TBI ) 形成严肃的威胁到人的健康。这张手稿描述当前在中国的 TBI 治疗存在的迫切问题并且建议一个全国性的合作平台的一个计划让 TBI 的治疗以便在中国改进 TBI 治疗的全面水平,并且在 TBI 病人减少残疾和死亡率。 | Baiyun Liu | 2015 | Chinese Journal of Traumatology2015，18，3： | 9 |
| 6 | IMPROVEMENT OF RHEOLOGICAL AND SHAPE RETENTION PROPERTIES OF WAX-BASED MIM BINDER BY MULTI-POLYMER COMPONENTS显示文摘INTRODUCTIONMetalinjectionmolding(MIM)isanemergingnetshapingproceswiththecapabilityofproducingcomplexmetalproductswhichcan?.. | Li, Yimin Huang, Baiyun Qu, Xuanhui | 1999 | 中国有色金属学会会刊:英文版1999，9，1： | 7 |
| 7 | Improvement of Ductility of Powder Metallurgy Titanium Alloys by Addition of Rare Earth Element显示文摘Ti-4.5AI-6.0Mo-1.5Fe, Ti-6AI-1Mo-1Fe 和 Ti-6AI-4V 合金被混合元素的粉末冶金学(下午) 准备微观结构和机械性质上的 Nd 的过程,和效果被扫描电子显微镜学(SEM ) 调查,传播电子显微镜学(TEM ) 和 X 光检查衍射(XRD ) 。因为液相的小数量发生在 sintering 期间, Nd 的增加由 1% 的最大的增长稍微增加了 sintered 钛合金的密度,这被发现。Nd 的增加在张力的力量的改进上显示出小效果,当延伸显著地被改进时。例如,没有 13percent 的 Nd 的增加, Ti-4.5AI-6.0Mo-1.5Fe 的延伸能在 1.2 wt % 的一个 Nd 内容从 1% 被增加。 | Yong LIU Lifang CHEN Weifeng WEI Huiping TANG Bin LIU Baiyun HUANG | 2006 | Journal of Materials Science & Technology2006，22，4： | 7 |
| 8 | MICROSTRUCTURES OF TiAl BASED ALLOYS PREPARED BY HOT PRESSING ELEMENTAL POWDERS显示文摘1INTRODUCTIONTiAlbasedaloyshavebeenregardedaspromisinghightemperaturestructurematerials,fortheirhighspecificstrength,rigidity... | Yong, Liu Baiyun, Huang Yuehui, He Bing, Wang | 1998 | 中国有色金属学会会刊:英文版1998，8，3： | 6 |
| 9 | TiAl ALLOYS PREPARED BY THERMAL EXTRUSION OF ELEMENTAL POWDER MIXTURES显示文摘TiAlALLOYSPREPAREDBYTHERMALEXTRUSIONOFELEMENTALPOWDERMIXTURES①LiuZhijian,QuXuanhui,HuangBaiyunPowderMetallurgyResearchInstitu... | Liu Zhijian, Qu Xuanhui, Huang Baiyun Powder Metallurgy Research Institute, Central South University of Technology, Changsha 410083 | 1997 | 中国有色金属学会会刊:英文版1997，7，1： | 6 |
| 10 | Carbide Formation Process in Directionally Solidified MAR-M247 LC Superalloy显示文摘Carbide nucleation, growth and trapping behavior in directionally solIdified MAR-M247 LC alloyand the corresponding mechanism have been investigated. Carbide forming element enrichmentcontrols the carbide nucleation and the carbide growth behavior. If the carbide forming elementenrichment and the nucleation sites are suitable, carbide nucleation can occur both above andbelow the liquidus temperature. Heterogeneous carbide nucleation is the preferred nucleationmechanism at low carbide forming element enrichment. Carbide growth occurs mainIy at inter-secondary ry dendrite arm area and lower part of the mushy zone. The carbides are subsequentlytrapped at these positions after growing to a certain size. Some carbides are only partially trappedby the solid-liquid interface and the carbide growth accelerates after being partially trapped. Acritical growth rate exists between 2×10-6 m/s and 5 ×10-6 m/s. The carbide volume fractiondecreases in the directionally solidified part at slow growth rate that is caused by the lack ofsuitable growth site and the low trapping ability of the solid-liquid | Chen, Jian Huang, Baiyun Lee, J.H. Choe, S.J. Lee, Y.T. | 1999 | Journal of Materials Science & Technology1999，15，1： | 5 |
| 11 | INJECTION MOLDED TUNGSTEN HEAVY ALLOY显示文摘INTRODUCTIONMetalInjectionMolding(MIM),whichisderivedfromplasticinjectionmolding,isakindofnewlydevelopedpowdermetalurgyformin... | Li Yimin, Qu Xuanhui, Li Zhilin and Huang Baiyun State Key Laboratory for Powder Metallurgy, Central South University of Technology, Changsha 410083, P. R. China | 1998 | 中国有色金属学会会刊:英文版1998，8，4： | 5 |
| 12 | THERMAL DEBINDING OF A NEW BINDER显示文摘THERMALDEBINDINGOFANEWBINDER①ZhouJicheng,HuangBaiyun,WuEnxi,YuLigong,QuXuanhuiNationalKeyLaboratoryforPowderMetalurgy,Centra... | Zhou Jicheng *, Huang Baiyun , Wu Enxi , Yu Ligong , Qu Xuanhui National Key Laboratory for Powder Metallurgy, Central South University of Technology, Changsha 410083 * Changsha Railway University, Changsha 410075 | 1997 | 中国有色金属学会会刊:英文版1997，7，4： | 5 |
| 13 | Effect of fabrication parameters on the microstructure,in-plane anisotropy and magnetostriction of Fe-Ga thin films显示文摘The microstructure,in-plane anisotropy,and magnetic properties of Fe-Ga thin films were investigated by X-ray diffraction analysis,vibrating sample magnetometer,and capacitive cantilever method.The in-plane induced anisotropy is well formed by the applied magnetic field during sputtering,and the anisotropy field Hk decreases with the sputtering power increasing.The coercivity of Fe-Ga thin films decreases with increasing power when the sputtering power is less than 60 W and increases when the power is larger than 60 W.The magnetostriction of the thin films reaches 66 × 10-6 at the sputtering power of 60 W.Excellent Fe-Ga films,which exhibit good field sensitivity,low coercivity and high magnetostriction,have been fabricated at the power of 60 W,and they can be used as the materials of magnetostrictive transducers. | WANG Bowen HUANG Wemnei CAO Shuying DU Yong HE Yuehui HUANG Baiyun | 2010 | Rare Metals2010，29，6： | 4 |
| 14 | SYNTHESIS OF Ti-47Al-2Cr-2Nb ALLOY THROUGH ELEMENTAL POWDER METALLURGY显示文摘INTRODUCTIONTiAlbasealoyshaveatractedmoreandmoreatentionbytheirhighspecificstrength,specificrigidityandexcelentpropertiesate... | Liu Yong, Huang Baiyun and He Yuehui Powder Metallurgy Research Institute, Central South University of Technology, Changsha 410083, P. R. China | 1998 | 中国有色金属学会会刊:英文版1998，8，4： | 4 |
| 15 | Improving Densification and Mechanical Properties of FeAl/TiC Composites by Addition of Ni显示文摘FeAl/TiC composites were fabricated by hot pressing blended elemental powders. The effects of Ni-doping on thedensification and mechanical properties of the composites were studied. Results show that the density of the com-posites decreases with the content of TiC increasing, and the addition of Ni significantly improves the densificationprocess by enhancing mass transfer in the bonding phase. The mechanical properties of the composites are closelyrelated with their porosity. Besides increasing the density of the composites, the addition of Ni improves the mechan-ical properties by other three effects: solution-strengthening the bonding phase, strengthening the FeAl-TiC interfaceand increasing ductile fracture in FeAl phase. | Yong LIU, Fengxiao LIU, Baiyun HUANG, Kechao ZHOU, Yuehui HE and Zhihong TANGNational Key Lab for P/M, Central South University, Changsha 410083, China | 2003 | Journal of Materials Science & Technology2003，19，1： | 4 |
| 16 | Martensitic Transformation and Magnetic-Field-Induced Strain in Magnetic Shape Memory Alloy NiMnGa Melt-Spun Ribbon显示文摘A magnetic shape memory alloy with nonstoichiometric Ni5oMn27Ga23 was prepared by using melt-spinning technology. The martensitic transformation and the magnetic-field-induced strain (MFIS) of the polycrystalline melt-spun ribbon were investigated. The experimental results showed that the melt-spun ribbons underwent thermal-elastic martensitic transformation and reverse transformation in cooling and heating process and exhibited typical thermoelastic shape memory effect. However the start temperature for martensitic transformation decreased from 286 K for as-cast alloy to 254 K for as-quenched ribbon and Curie temperature remains approximately constant. A particular internal stress induced by melt-spinning resulted in the formation of a texture structure in the ribbons, which made the ribbons obtain larger martensitic transformation strain and MFIS. The internal stress was released substantially after annealing, which resulted in a decrease of MFIS of the ribbons. | Shihai GUO, Yanghuan ZHANG, Jianliang LI, Baiyun QUAN, Yan QI and Xinlin WANG Department of Functional Material Research, Central Iron and Steel Research Institute, Beijing 100081, China | 2005 | Journal of Materials Science & Technology2005，21，2： | 3 |
| 17 | Processing TiAl-Based Alloy by Elemental Powder Metallurgy显示文摘TiAl-based alloys with various compositions (including Ti-48Al, Ti-47Al-2Cr-2Nb, Ti-47Al-2Cr- 2Nb-0.2B and Ti-47Al-3Cr, in mole fraction) had been prepared by elemental powder metallurgy (EPM). The results have shown that the density of the prepared Ti-48Al alloy increases with increasing hot pressing temperature up to 1300℃. The Ti-48Al alloy microstructure mainly consisted of island-like Ti3Al phase and TiAl matrix at hot pressing temperature below 1300℃, however, coarse a2/r lamellar colonies and r grains appeared at 1400℃. It has also indicated that the additions of elemental Cr and B can refine the alloy microstructure. The main microstructural inhomogeneity in EPM TiAl-based alloys was the island-like a2 phase or the aggregate of a2/r lamellar colony, and such island-like structure will be inherited during subsequent heat treatment in (a+r) field. Only after heat treatment in a field would this structure be eliminated. The mechanical properties of EPM TiAl-based alloys with various compositions were tested, and the effect of alloy elements on the mechanical properties was closely related to that of alloy elements on the alloy microstructures. Based on the above results, TiAl-based alloy exhaust valves were fabricated by elemental powder metallurgy and diffusion joining. The automobile engine test had demonstrated that the performance of the manufactured valves was very promising for engine service. | Yong LIU, Baiyun HUANG, Yuehui HE and Kechao ZHOU (National Key Laboratory for Powder Metallurgy, Central South University of Technology, Changsha 410083, China) | 2000 | Journal of Materials Science & Technology2000，16，6： | 3 |
| 18 | Research progress in traumatic brain penumbra显示文摘 | Wang Kai Liu Baiyun Ma Jun | 2014 | Chinese Medical Journal2014，，10： | 3 |
| 19 | Application of minimally invasive surgery in traumatic brain injury显示文摘 | Liu Baiyun | 2014 | Chinese Journal of Traumatology2014，17，6： | 3 |
| 20 | The effect of zinc on the aluminum anode of the aluminum–air battery显示文摘 | Yougen Tang Lingbin Lu Herbert W. Roesky Laiwen Wang Baiyun Huang | 2004 | Journal of Power Sources2004，，1： | 2 |
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