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国家自然科学基金(50271054): 作品数：47被引量：380H指数：13; 导出分析报告; 相关作者：郭学锋张忠明徐春杰宋佩维黄正华更多>>; 相关机构：西安理工大学河南理工大学哈尔滨工业大学陕西理工大学更多>>; 相关期刊：《机械工程学报》《热加工工艺》《材料工程》《Transactions of Nonferrous Metals Society of China》更多>>; 相关主题：镁合金AZ91D镁合金力学性能MG-4AL-2SI合金稀土更多>>; 相关领域：金属学及工艺一般工业技术更多>>

A High Strength Mg-6Zn-1Y-1Ce Alloy Prepared by Hot Extrusion被引量：5: 《Journal of Wuhan University of Technology(Materials Science)》2013年第2期389-395,共7页杨文朋 GUO Xuefeng; Funded by the National Natural Science Foundation of China(No.50271054);the Ph D Programs Foundation of Ministry of Education of China(No.20070700003);the Science and Technologies Foundation of Henan of China(No.102102210031);the Natural Science Foundation of Henan Educational Committee of China(No.2010A430008); Microstructures and tensile properties of Mg-6Zn-IY-1Ce alloy extruded in a temperature range between 300 ℃ and 400 ℃ were investigated. The yield strength of the material increased as the extrusion temperature decr...; 关键词：magnesium alloy EXTRUSION dynamic recrystallization tensile properties Hall-Petch equation

Superplastic Behavior of Reciprocating Extruded Mg-6Zn-1Y-0.6Ce-0.6Zr from Rapidly Solidified Ribbons: 《Journal of Wuhan University of Technology(Materials Science)》2012年第6期1033-1037,共5页郭学锋 YANG Wenpeng REN Fang; Funded by the National Natural Science Foundation of China (No. 50271054);the Doctoral Programs Foundation of Ministry of Education of China (No. 20070700003);the Science and Technologies Foundation of Henan of China (No. 102102210031);the Natural Science Foundation of Henan Educational Committee of China(2010A430008); RRE-Mg66 alloy with a composition of Mg-6.0%Zn-1.0%Y-0.6%Ce-0.6Zr was prepared by combinatorial processes of rapid solidification, reciprocating extrusion and extrusion. Microstructure was evaluated on SEM and TEM. Th...; 关键词：rapid solidification reciprocating extrusion EXTRUSION SUPERPLASTICITY

TEM microstructure of rapidly solidified Mg-6Zn-1Y-1Ce alloy: 《Transactions of Nonferrous Metals Society of China》2012年第4期786-792,共7页杨文朋郭学锋卢正欣; Project (50271054) supported by the National Natural Science Foundation of China;Project (20070700003) supported by the Doctorate Programs Foundation of Ministry of Education of China;Project (102102210031) supported by the Science and Technologies Foundation of Henan Province,China;Project (2010A430008) supported by the Natural Science Foundation of Henan Educational Committee of China; Rapidly solidified（RS） Mg-6Zn-1Y-1Ce ribbons were prepared by single roller melt-spinning technique.Transmission electron microscopy and energy dispersive X-ray spectroscopy were employed to characterize the microst...; 关键词：Mg-6Zn-1Y-1Ce alloy rapid solidification T phase icosahedral quasicrystalline Mg4Zn7 phase W phase

往复挤压Mg-Al-Si合金的高温拉伸性能被引量：16: 《材料热处理学报》2012年第2期7-11,共5页郭学锋杨文朋宋佩维; 国家自然科学基金(50271054);教育部博士点基金(20070700003);河南省科技攻关资助项目(102102210031);河南省教育厅自然科学基金资助项目(2010A430008); 利用往复挤压(RE-n,n为挤压道次)制备Mg-4Al-2Si(AS42)、Mg-4Al-4Si(AS44)和Mg-6Al-6Si(AS66)合金,并在150℃和1.33×10-3s-1的初始应变速率下测试合金的拉伸性能。结果表明:RE-8-AS42合金晶粒尺寸为2.1μm,Mg2Si颗粒尺寸为1.3μm;RE-4-...; 关键词：Mg-Al-Si合金往复挤压高温拉伸性能

Low temperature quasi-superplasticity of ZK60 alloy prepared by reciprocating extrusion被引量：5: 《Transactions of Nonferrous Metals Society of China》2012年第2期255-261,共7页杨文朋郭学锋杨凯军; Project (50271054) supported by National Natural Science Foundation of China;Project (20070700003) supported by Ph.D. Programs Foundation of Ministry of Education of China;Project (102102210031) supported by Science and Technologies Foundation of Henan,China;Project (2010A430008) supported by Natural Science Foundation of Henan Educational Committee,China; Fine-grained ZK60 alloy was prepared by 2-pass reciprocating extrusion, and the low temperature superplasticity was conducted in a temperature range from 443 to 523 K and an initial strain rate ranging from 3.3×10^-4...; 关键词：ZK60 Mg alloy reciprocating extrusion QUASI-SUPERPLASTICITY intragranular sliding grain boundary sliding

往复挤压Mg-4Al-2Si合金中Mg_2Si颗粒形貌与分布被引量：19: 《材料工程》2011年第11期62-67,共6页郭学锋杨文朋宋佩维; 国家自然科学基金(50271054);教育部博士点基金(20070700003);河南省科技厅攻关资助项目(102102210031);河南省教育厅自然科学基金资助项目(2010A430008); 使用往复挤压细化Mg-4Al-2Si(AS42)合金组织,利用OM,SEM和TEM研究Mg2Si颗粒形貌和分布特征。结果表明,铸态AS42合金中Mg2Si颗粒呈共晶汉字状和初生块状。共晶Mg2Si经2道次往复挤压后全部破碎,且分布均匀。经6道次挤压后初生Mg2Si颗粒全...; 关键词：往复挤压 MG2SI 球化 WEIBULL分布

High strength magnesium alloy with α-Mg and W-phase processed by hot extrusion被引量：9: 《Transactions of Nonferrous Metals Society of China》2011年第11期2358-2364,共7页杨文朋郭学锋; Project (50271054) supported by the National Natural Science Foundation of China;Project (20070700003) supported by the Doctorate Programs Foundation of Ministry of Education of China;Project (102102210031) supported by the Science and Technologies Foundation of Henan Province, China;Project (2010A430008) supported by the Natural Science Foundation of Henan Educational Committee of China; Fine-grained Mg-6Zn-4Y alloy was prepared by an ingot metallurgy process with hot extrusion at 300 ℃.The microstructure was studied by XRD,OM,SEM and TEM,and the tensile properties were tested at room temperature.The...; 关键词：Mg-6Zn-4Y alloy EXTRUSION W-phase high strength yield phenomenon

Si对往复挤压Mg-Al-Si再结晶组织和力学性能的影响被引量：8: 《材料热处理学报》2011年第8期54-59,共6页郭学锋杨文朋宋佩维; 国家自然科学基金(50271054);教育部博士点基金(20070700003);河南省科技攻关资助项目(102102210031);河南省教育厅自然科学基金资助项目(2010A430008); 利用往复挤压细化了Mg-4Al-2Si、Mg-4Al-4Si和Mg-6Al-6Si合金组织,分析了Si含量对合金组织和力学性能的影响。结果表明,随着Si含量增加,基体晶粒和Mg2Si颗粒粗化,拉伸强度降低。基体组织细化受Mg2Si相的形态和均匀性控制,为再结晶和Mg2S...; 关键词：往复挤压 Mg-Al-Si合金 MG2SI 力学性能

Mg-Y-Si合金制备及组织分析被引量：6: 《兵器材料科学与工程》2011年第2期23-27,共5页赵得江郭学锋杨文鹏徐春杰胡博高轩; 国家自然科学基金(50271054);教育部博士点基金(20070700003);河南省科技攻关资助项目(102102210031);河南省教育厅自然科学基金资助项目(2010A430008); 在热力学计算分析的基础上,用SiO2粉末和纯镁制备Mg-3%Si(质量分数)中间合金,并用光电直读光谱仪测定制备的中间合金Si的含量,表明其含量稳定且可控。用普通重力铸造法制备了Mg-2Y-1Si合金和Mg-3Y-1Si合金,该合金的铸态组织由α-Mg相、(...; 关键词：Mg-Y-Si合金热力学稀土晶格常数镁合金固溶体

铈对AZ91D镁合金ECAP组织及性能的影响: 《铸造技术》2010年第11期1479-1481,共3页史菲贾倩郭学锋张忠明; 国家自然科学基金资助项目(50271054);陕西省自然科学基金资助项目(2002E110);陕西省教育厅回国留学人员基金资助项目; 通过普通凝固技术获得含有0.1%,0.3%,0.5%,0.7%和0.9%Ce的AZ91D镁合金,进行等通道转角挤压(ECAP)实验。利用金相显微镜(OM)、扫描电镜(SEM)观察合金微观组织形貌,用扫描电镜附带的能谱分析仪(EDS)分析其微区组织成分,并测试挤压前后合...; 关键词：AZ91D镁合金稀土Ce 等通道转角挤压维氏硬度

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