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is up to 308-320 MPa and elongation reaches 8.0%-13.5%. After double hot-extrusion, the dynamic recrystallization completes totally, and the UTS is up to 310-355 MPa, but the elongation does not change... that the alloys with Sr present good ductility after double hot-extrusion. Key words: AZ80 magnesium alloy; Sr; double hot-extrusion; ultimate tensile strength; elongation ......
Microstructure of nickel foam/Mg double interpenetrating composites ZHAO Long-zhi(赵龙志)1, 2, 3, ZHAO Ming-juan(赵明娟)2, LI Na(李 娜)2, YAN Hong(闫 洪)1, ZHANG Jin-song(张劲松)4 1. School of Mechanical... of Sciences, Shenyang 110016, China Received 23 September 2009; accepted 30 January 2010 Abstract: The magnesium matrix double interpenetrating composites reinforced by nickel foam were fabricated......
Microstructural evolution of spray-formed Al-11.5Zn-2.0Mg-1.6Cu alloy during hot-extrusion and heat-treatment GUO Shu(郭 舒), NING Zhi-liang(宁志良), CAO Fu-yang(曹福洋), SUN Jian-fei(孙剑飞) School...) technique followed by hot extrusion and heat-treatment. Its microstructural evolution was investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM) with energy dispersive......
Formability influenced by process loading path of double sheet hydroformingLIU Wei1, LIU Gang2, CUI Xiao-lei1, XU Yong-chao1, YUAN Shi-jian1(1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China; 2. Key Laboratory of Ministry of Education for Conveyance and Equipment, East China Jiaotong University, Nanchang 330013, China)Abstract:Double......
Double Glow Plasma Surface Alloyed Burn-resistant Titanium Alloy ZHANG Gao-hui1,ZHANG Ping-ze1,HE Zhi-yong1,XU Zhong1 (1.Taiyuan University of Technology, Taiyuan, Shanxi, 030024, P. R. China) 摘要...-resistant titanium alloy-double glow plasma surface alloying burn-resistant titanium alloy. Alloying element Cr, Mo, Cu are induced into the Ti-6Al-4V and Ti-6.5Al-0.3Mo-l.5Zr-0.25Si substrates......
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The Technology and Properties of Digital Double Pulse Electrodepositing Ni-HA Composite Coating of Bioceramics JIN Zhong-hong1,SHI Gu-guizhi2,DONG He-yan3,LI Yan1,WANG Zhou4,CHEN Wei-rong4,FU... and analyses the technology, the surface image, microstructure and ability of digital double pulse electrodepositing Ni-HA composite coatings of bioceramics made on 1Crl8Ni9Ti substrate by SEM ,XRD and so......
Modeling of severe deformation and mechanical properties in Mg-3Al-1Zn alloy through asymmetric hot-extrusion CHANG Li-li(常丽丽)1, WANG Yi-nong(王轶农)1, ZHAO Xiang(赵 镶)2 1. Department of Materials...; Abstract: One-pass asymmetric hot extrusion performed at 673 K was applied to fabricate an AZ31 magnesium alloy sheet. Finite element method (FEM) was used......
A new double reduction method for slope stability analysisBAI Bing(白冰), YUAN Wei(袁维), LI Xiao-chun(李小春)(State Key Laboratory of Geomechanics and Geotechnical Engineering(Institute of Rock and Soil... and a definition of factor of safety (FOS). A new double reduction method, including a detailed calculation procedure and a definition of FOS for slope stability was developed based......
Crack spacing threshold of double cracks propagation for large-module rackZHAO Tie-zhu(赵铁柱), SHI Duan-wei(石端伟), YAO Zhe-hao(姚哲皓), MAO Hong-yong(毛宏勇), CHENG Shu-xiao(程术潇), PENG Hui(彭惠) (School... on double cracks in both collinear and offset conditions were conducted. The variation rule of the stress intensity factor (SIF) influence factor, RK, of double collinear cracks changing with crack spacing......
