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| 1 | AM50镁合金多道次热轧中动态再结晶过程的有限元模拟及实验研究(英文)显示文摘通过开发用于组织模拟的用户程序,采用有限元软件DEFORM-3D模拟AM50镁合金多道次热轧过程中的组织转变,并通过与实验结果的对比分析证明该用户程序模拟多道次轧制的可行性。结果表明:多道次热轧有助于镁板的晶粒细化及均匀再结晶组织的获得,精轧前的板坯温度对终轧后的晶粒尺寸影响很大,但对晶粒尺寸的分布情况影响不明显。开发的用户程序亦可应用于其他类型多道次热变形过程的模拟研究。 | 丁汉林 王天一 杨磊 Shigeharu KAMADO | 2013 | Transactions of Nonferrous Metals Society of China2013，23，9： | 8 |
| 2 | Effects of trace Gd concentration on texture and mechanical properties of hot-rolled Mg-2Zn-xGd sheets显示文摘The effects of Gd concentration(0.1,0.3,0.7 wt%)on the microstructure,texture and mechanical properties of rolled and annealed Mg-2Zn-xGd sheets have been investigated aiming to develop low cost and high ductile Mg-Zn-Gd sheets.Dynamic recrystallization,static recrystallization and grain growth during hot rolling process and annealing process were delayed with increase of Gd concentration,leading to fine grain microstructure.The rolled 0.1 wt%Gd sheet showed strong basal texture which remained stable after annealing process and exhibited medium elongation of about 25%.In contrast,the rolled 0.3 wt%Gd sheet had weak basal texture which transformed to non-basal texture with double peaks tilted about±48°to the transverse direction due to the static recrystallization during annealing process.Consequently,the annealed sheets exhibited higher elongation of 40%along the rolling direction and 50%along the transverse direction due to the existence of non-basal texture.It is suggested that the minimum effective concentration for texture randomization in the Mg-2Zn-xGd alloy is about 0.3 wt%. | Hong Yan Rongshi Chen Nan Zheng Jun Luo Shigeharu Kamado Enhou Han | 2013 | Journal of Magnesium and Alloys2013，1，1： | 7 |
| 3 | Ca添加对镁合金板材组织和织构的影响(英文)显示文摘采用多道次轧制方法制备AM60(Mg-6.0Al-0.3Mn,质量分数%)和ZXM200(Mg-1.6Zn-0.5Ca-0.2Mn)镁合金板材,并研究镁合金板材的力学性能和织构特征。研究表明,在添加Ca的镁合金轧板中,细小的再结晶晶粒表现出特定的取向特征,从而改变了轧板的整体织构特征;固溶至镁基体中的Ca元素促使晶粒c轴由板坯法线方向向板宽方向偏转,亦可明显弱化板材织构。这导致了含Ca的镁合金板材表现出与稀土镁合金类似的织构特征。 | 丁汉林 张鹏 程广萍 Shigeharu KAMADO | 2015 | Transactions of Nonferrous Metals Society of China2015，25，9： | 6 |
| 4 | FEM analysis for hot rolling process of AM60 alloy显示文摘<正>The rolling of AM60 sheets for 50%reduction was analyzed with DEFORM to investigate the hot deformation process. The simulated results show that the sheet velocities at the entrance(21 mm/s) and at the exit(37 mm/s) are less and larger than roll velocity,respectively.From the entrance to the neutral point,the velocity at the sheet surface is greater than that at the middle point of sheet in thickness,while that from the neutral point to the exit shows the opposite pattern.The effective strain of the sheet increases from the entrance to the exit due to the continuous reduction in thickness.In addition,the effective strain at the sheet surface reaches to 1.0 and is larger than that of 0.8 at the middle point of sheet.The difference of effective strain in thickness direction has a much stronger effect on the recrystallized fraction than on the recrystallized grain size.The minimum temperature of 347℃is obtained at the surface contacting directly with roll and the maximum temperature 388℃at the middle point of sheet in thickness. | 丁汉材 KANAMORI Nao HONMA Tomoyuki KAMADO Shigeharu KOJIMA Yo | 2008 | 中国有色金属学会会刊:英文版2008，18，A01： | 4 |
| 5 | Effect of Zn additions on the age-hardening of Mg–2.0Gd–1.2Y–0.2Zr alloys显示文摘 | T. Honma T. Ohkubo S. Kamado K. Hono | 2007 | Acta Materialia2007，，12： | 3 |
| 6 | Influence of size and distribution of W phase on strength and ductility of high strength Mg-5.1Zn-3.2Y-0.4Zr-0.4Ca alloy processed by indirect extrusion显示文摘A high strength Mg-5.1Zn-3.2Y-0.4Zr-0.4Ca(wt%) alloy containing W phase(Mg_3Y_2Zn_3) prepared by permanent mold direct-chill casting is indirectly extruded at 350?C and 400?C, respectively. The extruded alloys show bimodal grain structure consisting of fine dynamic recrystallized(DRXed) grains and unrecrystallized coarse regions containing fine W phase and β2' precipitates. The fragmented W phase particles induced by extrusion stimulate nucleation of DRXed grains, leading to the formation of fine DRXed grains, which are mainly distributed near the W particle bands along the extrusion direction. The alloy extruded at 350?C exhibits yield strength of 373 MPa, ultimate tensile strength of 403 MPa and elongation to failure of 5.1%. While the alloy extruded at 400?C shows lower yield strength of 332 MPa,ultimate tensile strength of 352 MPa and higher elongation to failure of 12%. The mechanical properties of the as-extruded alloys vary with the distribution and size of W phase. A higher fraction of DRXed grains is obtained due to the homogeneous distribution of micron-scale broken W phase particles in the alloy extruded at 400?C, which can lead to higher ductility. In addition, the nano-scale dynamic W phase precipitates distributed in the un DRXed regions are refined at lower extrusion temperature. The smaller size of nano-scale W phase precipitates leads to a higher fraction of un DRXed regions which contributes to higher strength of the alloy extruded at 350?C. | Hansi Jiang Xiaoguang Qiao Chao Xu Shigeharu Kamado Kun Wu Mingyi Zheng | 2018 | Journal of Materials Science & Technology2018，34，2： | 2 |
| 7 | Influence of rolling temperature on the microstructure and mechanical properties of Mg–Gd–Y–Zn–Zr alloy sheets显示文摘 | C. Xu M.Y. Zheng K. Wu E.D. Wang G.H. Fan S.W. Xu S. Kamado X.D. Liu G.J. Wang X.Y. Lv | 2013 | Materials Science & Engineering A2013，，： | 2 |
| 8 | Fundamental Magnesium Researches in Japan显示文摘 | Kojima Yo Kamado Shigeharu | 2005 | Materials Science Forum2005，，488： | 2 |
| 9 | Microstructures and mechanical properties of high-strength Mg–Gd–Y–Zn–Zr alloy sheets processed by severe hot rolling显示文摘 | C. Xu S.W. Xu M.Y. Zheng K. Wu E.D. Wang S. Kamado G.J. Wang X.Y. Lv | 2012 | Journal of Alloys and Compounds2012，，： | 2 |
| 10 | Improvement of tensile properties of wrought magnesium alloys by grain refining显示文摘 | Kamado S Ashie T Yamada H | 2000 | Mater Sci Forum2000，35，： | 1 |
| 11 | Aging behavior of squeeze cast SiCw/AZ91 magnesium matrix Composite显示文摘 | Zheng M Y Wu K Kamado S | 2003 | Materials Science and Engineering2003，348，： | 1 |
| 12 | Low temperature superplasticity of ECAE processed Mg-10% Li-1% Zn alloy 显示文摘 | YOSHIDA Y CISAR L KAMADO K | 2002 | Mater Trans2002，43，10： | 1 |
| 13 | Aging characteristics and high temperature tensile properties of Mg-Gd-Y-Zr alloys显示文摘 | ANYANWU A KAMADO S KOJIMA Y | 2001 | Materials Transactions2001，42，7： | 1 |
| 14 | Aging characteristics and high temperature tensile properties of Mg-Gd-Y-Zr alloys显示文摘 | ANYANWU I A KAMADO S KOJIMA Y | 2001 | Materials Transactions2001，42，7： | 1 |
| 15 | Heat resistance of Mg-Zn- A1-Ca alloy casting显示文摘 | ANYANWU L A KAMADO S HONDA T | 2000 | Materials Science Forum2000，35，： | 1 |
| 16 | Aging characteristics and high temperature tensile properties of Mg -Gd-Y -Zr alloys 显示文摘 | ANYANWU I A KAMADO S KOJIMA Y | 2001 | Mater Trans2001，42，7： | 1 |
| 17 | Fundamental magnesium research in Japan显示文摘 | Kojima Y Shigeharu Kamado | 2005 | Materials Science Forum2005，518，488： | 1 |
| 18 | Creep properties of Mg-Gd-Y-Zr alloys显示文摘 | ANYANWU A KAMADO S KOJIMA Y | 2001 | Materials Transactions2001，42，7： | 1 |
| 19 | Mechanical Properties of Mg-Y-Zn Alloy Processed by Equal Channel Angular Extrusion显示文摘 | HIROYUKI Waalanabe TOSHIJI Mukai SHIGEHARU Kamado | 2003 | Materials Transactions2003，44，4： | 1 |
| 20 | Creep properties of Mg-Gd-Y-Zr alloys显示文摘 | Anyanwu I A Kamado S Kojima Y | 2001 | Materials Transactions2001，42，1： | 1 |
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