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| 1 | Grain refinement of Mg-Al alloys inoculated by MgAl_(2)O_(4)powder显示文摘As a potent nucleating substrate forα-Mg grain,MgAl_(2)O_(4) powder was used to inoculate the Mg-Al melt in this study.The effects of MgAl_(2)O_(4)amount,holding time and Al content on the grain size and grain refining ratio of the inoculated Mg-Al alloys are systematically investigated.The results show that the minimum grain size of Mg-3Al alloy is achieved by adding 2wt.%MgAl_(2)O_(4)powder and this alloy exhibits higher grain refining ratio than Mg-5Al and Mg-8Al alloys.The crystallographic misfit calculation indicates the wellmatching and possible orientation relationships(ORs)betweenα-Mg and MgAl_(2)O_(4).Among these predicted ORs,[10–10]α−Mg//[110]MgAl2O4 in(0002)α−Mg//(1–13)MgAl2O4 possesses the smallest misfit,i.e.,2.34%(fr).Both results of the experiment and crystallographic calculation demonstrate that the grain refinement of Mg-Al alloys is attributed to the MgAl_(2)O_(4)particles acting as the heterogeneous nucleation substrates forα-Mg grains. | Hengbin Liao Meiyan Zhan Chengbo Li Zhiqiang Ma Jun Du | 2021 | Journal of Magnesium and Alloys2021，9，4： | 7 |
| 2 | Structure variety and its effects on biological activity of tea polysaccharides显示文摘Tea polysaccharides(TPSs),one of the major bioactive ingredients in tea,have been widely studied due to their variety of biological activities,including antioxidant,cancer prevention,hypoglycemia,anti-fatigue,anti-coagulant,anti-obesity and immunomodulatory effect.The biological effectiveness of TPSs has direct relation with their structures such as monosaccharide composition,molecular weight,glycosidic linkages,conformation and others,which can be influenced by tea materials,processing methods,extraction and purification procedures among others.Comparing to the study of tea polyphenols,the exploration of TPSs in structural elucidation and biofunctionality is very preliminary.Yet several factors affecting the structural change of TPSs have been studied and identified.Consequently,the variation of some TPS biological activity brought by the change of TPS structures has been evaluated and preliminary correlation of structure activity relationship of TPSs has been performed.Therefore,this review aims to serve as a summary research report regarding the influencing factors on TPSs structures and consequential effects on the biological activities of TPSs.We hope to provide updated information and systematic references for future study and functional food development of TPSs. | Ting Hu Peng Wu Jianfeng Zhan Weixin Wang Junfeng Shen Meiyan Wang Chi-Tang Ho Shiming Li | 2022 | Food Science and Human Wellness2022，11，3： | 2 |
| 3 | 显示文摘 | Zhan Meiyan Chen Zhenhua Yan Hongge | 2007 | Journal of Materials Processing Technology2007，182，： | 1 |
| 4 | Two novel rolling processes of porous metal performs prepared by spray deposition technique using conventional roiling mill 显示文摘 | Zhan Meiyan Chen Zhenhua Yan Hongge | 2008 | Journal of materials processing technology2008，202，： | 1 |
| 5 | Processing of AZ31 magnesium alloy by accumulative roll-bonding at gradient temperature显示文摘In the present investigation a wrought magnesium alloy AZ31 was successfully processed by the accumulative roll-bonding (ARB) at gradient temperature up to six cycles with the lowest temperature of 250 °C. This is performed through different thermomechanical processing routes (different ARB cycles at different temperatures of 350-200 °C). The microstructures and mechanical properties were investigated. The results indicate that significant grain refinement is observed after the first two cycles at the highest ARB temperature as a result of dynamic recrystallization, which is necessary for the subsequently ARB cycles at relatively lower temperature with the aim to restrict grain growth. No significant finer grain size was observed through the fifth and sixth cycles while the microstructure homogeneity is further improved. The grain structure can be effectively refined at lower ARB processing temperature and higher cycles. The resulting material exhibited high strength and relatively high ductility at ambient temperature when ARB deformed above 250 °C. The mechanical properties of the ARB deformed materials are strongly dependent on several main factors: the amount and the homogeneity of strain achieved, grain size and microstructure homogeneity, textures developed during ARB and interface bonding quality. | Meiyan ZHAN Chunming LI Weiwen ZHANG Datong ZHANG | 2012 | Acta Metallurgica Sinica(English Letters)2012，25，1： | 1 |
| 6 | Production of Mg-A1-Zn magnesium alloy sheets with uhrafine-grain microstructure by accumulative roll-bonding 显示文摘 | Zhan Meiyan Zhang Weiwen Zhang Datong | 2011 | Transactions of Nonferrous Metals Society of China2011，21，： | 1 |
| 7 | Improving me- chanical properties of Mg-Al-Zn alloy sheets through accu- mulative roll-bonding显示文摘 | Zhan Meiyan Li Yuanyuan Chen Weiping | 2008 | Trans Nonferrous Met Soc China2008，18，2： | 1 |
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